def get_model(weights_path):
ssd_loss = SSDLoss(neg_pos_ratio=3, alpha=1.0)
convert_to_3_channels = ConvertTo3Channels()
resize = Resize(height=img_height, width=img_width)
K.clear_session()
model = ssd_300(image_size=(img_height, img_width, img_channels),
n_classes=n_classes,
mode='training',
l2_regularization=0.0005,
scales=scales,
aspect_ratios_per_layer=aspect_ratios,
two_boxes_for_ar1=two_boxes_for_ar1,
steps=steps,
offsets=offsets,
clip_boxes=clip_boxes,
variances=variances,
normalize_coords=normalize_coords,
subtract_mean=mean_color,
swap_channels=swap_channels)
# 2: Load some weights into the model.
model.load_weights(weights_path, by_name=True)
sgd = SGD(lr=0.001, momentum=0.9, decay=0.0, nesterov=False)
model.compile(optimizer=sgd, loss=ssd_loss.compute_loss)
return model
def create_model(model_type='ssd300', dataset='voc2007', dtype='float32'):
if model_type == 'ssd300':
model = ssd_300(image_size=(300, 300, 3),
n_classes=20 if dataset == 'voc2007' else 80,
mode='inference',
l2_regularization=0.0005,
scales=[0.1, 0.2, 0.37, 0.54,
0.71, 0.88, 1.05] if dataset == 'voc2007' else [0.07, 0.15, 0.33,
0.51, 0.69, 0.87, 1.05],
aspect_ratios_per_layer=[[1.0, 2.0, 0.5],
[1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5],
[1.0, 2.0, 0.5]],
two_boxes_for_ar1=True,
steps=[8, 16, 32, 64, 100, 300],
offsets=[0.5, 0.5, 0.5, 0.5, 0.5, 0.5],
clip_boxes=False,
variances=[0.1, 0.1, 0.2, 0.2],
normalize_coords=True,
subtract_mean=[123, 117, 104],
swap_channels=[2, 1, 0],
confidence_thresh=0.01,
iou_threshold=0.45,
top_k=200,
nms_max_output_size=400,
dtype=dtype)
if dataset == 'voc2007':
def build_model(args: argparse.Namespace, weights_path: str) -> Model:
K.clear_session()
model = ssd_300(image_size=(args.img_height, args.img_width,
args.img_channels),
n_classes=args.n_classes,
mode='training',
l2_regularization=0.0005,
scales=args.scales,
aspect_ratios_per_layer=args.aspect_ratios,
two_boxes_for_ar1=args.two_boxes_for_ar1,
steps=args.steps,
offsets=args.offsets,
clip_boxes=args.clip_boxes,
variances=args.variances,
normalize_coords=args.normalize_coords,
subtract_mean=args.mean_color,
swap_channels=args.swap_channels)
model.load_weights(weights_path, by_name=True)
sgd = SGD(lr=0.001, momentum=0.9, decay=0.0, nesterov=False)
ssd_loss = SSDLoss(neg_pos_ratio=3, alpha=1.0)
model.compile(optimizer=sgd, loss=ssd_loss.compute_loss)
return model
def get_model(self,
mode='inference',
weights_path='',
n_classes='',
id2digit=''):
#
# n_classes, id2digit: for inference
config = self.config
if n_classes: # inference setting
self.n_classes = n_classes
if id2digit:
self.id2digit = id2digit
self.model = ssd_300(
image_size=(config.img_height, config.img_width,
config.img_channels),
n_classes=self.n_classes,
mode=mode,
l2_regularization=0.0005,
scales=config.scales,
aspect_ratios_per_layer=config.aspect_ratios,
two_boxes_for_ar1=config.two_boxes_for_ar1,
steps=config.steps,
offsets=config.offsets,
clip_boxes=config.clip_boxes,
variances=config.variances,
normalize_coords=config.normalize_coords,
subtract_mean=config.subtract_mean, #
divide_by_stddev=None, #
swap_channels=config.swap_channels,
confidence_thresh=0.5, #
iou_threshold=0.45,
top_k=200,
nms_max_output_size=400,
return_predictor_sizes=False)
if weights_path:
print(f'Loading weights from {weights_path}')
self.model.load_weights(weights_path, by_name=True)
self.weights_path = weights_path
#adam = Adam(lr=0.005, beta_1=0.9, beta_2=0.999, epsilon=1e-08, decay=0.0)
#sgd = SGD(lr=0.001, momentum=0.9, decay=0.0, nesterov=False)
adam = Adam(lr=0.001,
beta_1=0.9,
beta_2=0.999,
epsilon=1e-08,
decay=0.0)
ssd_loss = SSDLoss(neg_pos_ratio=3, n_neg_min=0, alpha=1.0)
self.model.compile(optimizer=adam, loss=ssd_loss.compute_loss)
def __init__(self, confidence_threshold=0.5):
self.confidence_th = confidence_threshold
# 0: Set the image size.
img_height = 300
img_width = 300
# 1: Build the Keras model
self.loaded_model = ssd_300(
image_size=(img_height, img_width, 3),
n_classes=20,
mode='inference',
l2_regularization=0.0005,
scales=[
0.1, 0.2, 0.37, 0.54, 0.71, 0.88, 1.05
], # The scales for MS COCO are [0.07, 0.15, 0.33, 0.51, 0.69, 0.87, 1.05]
aspect_ratios_per_layer=[[1.0, 2.0, 0.5],
[1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5], [1.0, 2.0, 0.5]],
two_boxes_for_ar1=True,
steps=[8, 16, 32, 64, 100, 300],
offsets=[0.5, 0.5, 0.5, 0.5, 0.5, 0.5],
clip_boxes=False,
variances=[0.1, 0.1, 0.2, 0.2],
normalize_coords=True,
subtract_mean=[123, 117, 104],
swap_channels=[2, 1, 0],
confidence_thresh=0.5,
iou_threshold=0.45,
top_k=200,
nms_max_output_size=400)
# 2: Load the trained weights into the model.
weights_path = 'models/VGG_VOC0712_SSD_300x300_iter_240000.h5'
self.loaded_model.load_weights(weights_path, by_name=True)
# 3: Compile the model so that Keras won't complain the next time you load it.
adam = Adam(lr=0.001,
beta_1=0.9,
beta_2=0.999,
epsilon=1e-08,
decay=0.0)
ssd_loss = SSDLoss(neg_pos_ratio=3, alpha=1.0)
self.loaded_model.compile(optimizer=adam, loss=ssd_loss.compute_loss)
# 4: make prediction (graph)
self.loaded_model._make_predict_function()
def build_model_300(self):
# 1: Build the Keras model
K.clear_session() # Clear previous models from memory.
self.model = ssd_300(
image_size=(self.img_height, self.img_width, 3),
n_classes=20,
mode='inference',
l2_regularization=0.0005,
scales=[0.1, 0.2, 0.37, 0.54, 0.71, 0.88, 1.05],
# The scales for MS COCO are [0.07, 0.15, 0.33, 0.51, 0.69, 0.87, 1.05]
aspect_ratios_per_layer=[[1.0, 2.0, 0.5],
[1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5], [1.0, 2.0, 0.5]],
two_boxes_for_ar1=True,
steps=[8, 16, 32, 64, 100, 300],
offsets=[0.5, 0.5, 0.5, 0.5, 0.5, 0.5],
clip_boxes=False,
variances=[0.1, 0.1, 0.2, 0.2],
normalize_coords=True,
subtract_mean=[123, 117, 104],
swap_channels=[2, 1, 0],
confidence_thresh=0.5,
iou_threshold=0.45,
top_k=200,
nms_max_output_size=400)
# 2: Load the trained weights into the model.
# TODO: Set the path of the trained weights.
weights_path = self.weights_path
self.model.load_weights(weights_path, by_name=True)
# 3: Compile the model so that Keras won't complain the next time you load it.
adam = Adam(lr=0.001,
beta_1=0.9,
beta_2=0.999,
epsilon=1e-08,
decay=0.0)
ssd_loss = SSDLoss(neg_pos_ratio=3, alpha=1.0)
self.model.compile(optimizer=adam, loss=ssd_loss.compute_loss)
def load_ssd300(self):
print('loading SSD 300 ... ')
img_shape = self.conf['IMG_SHAPE']
classes = self.conf['CLASSES']
swap_channels = [
2, 1, 0
] # The color channel order in the original SSD is BGR, so we'll have the model reverse the color channel order of the input images.
n_classes = len(classes)
scales_pascal = [
0.1, 0.2, 0.37, 0.54, 0.71, 0.88, 1.05
] # The anchor box scaling factors used in the original SSD300 for the Pascal VOC datasets
scales = scales_pascal
aspect_ratios = [
[1.0, 2.0, 0.5], [1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5, 3.0, 1.0 / 3.0], [1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5], [1.0, 2.0, 0.5]
] # The anchor box aspect ratios used in the original SSD300; the order matters
steps = [
8, 16, 32, 64, 100, 300
] # The space between two adjacent anchor box center points for each predictor layer.
two_boxes_for_ar1 = True
mean_color = [123, 117, 104] #TODO : add this as a parameter
offsets = [0.5, 0.5, 0.5, 0.5, 0.5, 0.5]
clip_boxes = False
variances = [0.1, 0.1, 0.2, 0.2]
normalize_coords = True
batch_size = self.conf['BATCH_SIZE']
model = ssd_300(image_size=tuple(img_shape),
n_classes=20,
mode='training',
l2_regularization=0.0005,
scales=scales,
aspect_ratios_per_layer=aspect_ratios,
two_boxes_for_ar1=two_boxes_for_ar1,
steps=steps,
offsets=offsets,
clip_boxes=clip_boxes,
variances=variances,
normalize_coords=normalize_coords,
subtract_mean=mean_color,
swap_channels=swap_channels)
self.load_weights(model)
return model
def init_model(weights_path='./ssdweights/rovio_v2.h5'):
img_height = 300
img_width = 300
dirname = os.path.dirname(os.path.abspath(__file__))
assert os.path.exists(weights_path), '%s not found...' % dirname
K.clear_session() # to clear all memory in the RAM
model = ssd_300(image_size=(img_height, img_width, 3),
n_classes=2,
mode='inference_fast',
l2_regularization=0.0005,
scales=[0.1, 0.2, 0.37, 0.54, 0.71, 0.88, 1.05],
aspect_ratios_per_layer=[[1.0, 2.0, 0.5],
[1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5],
[1.0, 2.0, 0.5]],
two_boxes_for_ar1=True,
steps=[8, 16, 32, 64, 100, 300],
offsets=[0.5, 0.5, 0.5, 0.5, 0.5, 0.5],
limit_boxes=False,
variances=[0.1, 0.1, 0.2, 0.2],
coords='centroids',
normalize_coords=True,
subtract_mean=[123, 117, 104],
swap_channels=True,
confidence_thresh=0.5,
iou_threshold=0.45,
top_k=200,
nms_max_output_size=400)
model.load_weights(weights_path, by_name=True)
adam = Adam(lr=0.001, beta_1=0.9, beta_2=0.999, epsilon=1e-08, decay=5e-04)
ssd_loss = SSDLoss(neg_pos_ratio=3, n_neg_min=0, alpha=1.0)
model.compile(optimizer=adam, loss=ssd_loss.compute_loss)
return model, ['background', 'rovio', 'rovio']
def __init__(self,required_class=[2,6,7,14,15],weights_path='./VGG_VOC0712Plus_SSD_300x300_ft_iter_160000.h5',img_height = 300,img_width = 300):
self.img_height,self.img_width=img_height,img_width
K.clear_session() # Clear previous models from memory.
self.model = ssd_300(image_size=(self.img_height, self.img_width, 3),
n_classes=20,
mode='inference',
l2_regularization=0.0005,
scales=[0.1, 0.2, 0.37, 0.54, 0.71, 0.88, 1.05], # The scales for MS COCO are [0.07, 0.15, 0.33, 0.51, 0.69, 0.87, 1.05]
aspect_ratios_per_layer=[[1.0, 2.0, 0.5],
[1.0, 2.0, 0.5, 3.0, 1.0/3.0],
[1.0, 2.0, 0.5, 3.0, 1.0/3.0],
[1.0, 2.0, 0.5, 3.0, 1.0/3.0],
[1.0, 2.0, 0.5],
[1.0, 2.0, 0.5]],
two_boxes_for_ar1=True,
steps=[8, 16, 32, 64, 100, 300],
offsets=[0.5, 0.5, 0.5, 0.5, 0.5, 0.5],
clip_boxes=False,
variances=[0.1, 0.1, 0.2, 0.2],
normalize_coords=True,
subtract_mean=[123, 117, 104],
swap_channels=[2, 1, 0],
confidence_thresh=0.5,
iou_threshold=0.45,
top_k=200,
nms_max_output_size=400)
self.classes = ['background',
'aeroplane', 'bicycle', 'bird', 'boat',
'bottle', 'bus', 'car', 'cat',
'chair', 'cow', 'diningtable', 'dog',
'horse', 'motorbike', 'person', 'pottedplant',
'sheep', 'sofa', 'train', 'tvmonitor']
self.required_class=required_class
self.model.load_weights(weights_path, by_name=True)
def create_network():
# 1: Build the Keras model.
K.clear_session() # Clear previous models from memory.
model = ssd_300(image_size=(img_height, img_width, img_channels),
n_classes=n_classes,
mode='training',
l2_regularization=0.0005,
scales=scales,
aspect_ratios_per_layer=aspect_ratios,
two_boxes_for_ar1=two_boxes_for_ar1,
steps=steps,
offsets=offsets,
clip_boxes=clip_boxes,
variances=variances,
normalize_coords=normalize_coords,
subtract_mean=mean_color,
swap_channels=swap_channels)
# 2: Load some weights into the model.
# TODO: Set the path to the weights you want to load.
weights_path = 'D:/Develop/models/VOC0712/SSD_300x300/VGG_VOC0712_SSD_300x300_iter_120000.h5'
model.load_weights(weights_path, by_name=True)
freeze = [
'input_1', 'conv1_1', 'conv1_2', 'pool1', 'conv2_1', 'conv2_2',
'pool2', 'conv3_1', 'conv3_2', 'conv3_3', 'pool3'
] #,
# 'conv4_1', 'conv4_2', 'conv4_3', 'pool4']
for L in model.layers:
if L.name in freeze:
L.trainable = False
return model
def perimeter_detection(weights_path, video_path, result_path, threshold,
perimeter_a, perimeter_b):
img_height = 300
img_width = 300
K.clear_session() # Clear previous models from memory.
model = ssd_300(
image_size=(img_height, img_width, 3),
n_classes=20,
mode='inference',
l2_regularization=0.0005,
scales=[0.1, 0.2, 0.37, 0.54, 0.71, 0.88, 1.05],
# The scales for MS COCO are [0.07, 0.15, 0.33, 0.51, 0.69, 0.87, 1.05]
aspect_ratios_per_layer=[[1.0, 2.0, 0.5],
[1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5], [1.0, 2.0, 0.5]],
two_boxes_for_ar1=True,
steps=[8, 16, 32, 64, 100, 300],
offsets=[0.5, 0.5, 0.5, 0.5, 0.5, 0.5],
clip_boxes=False,
variances=[0.1, 0.1, 0.2, 0.2],
normalize_coords=True,
subtract_mean=[123, 117, 104],
swap_channels=[2, 1, 0],
confidence_thresh=0.1,
iou_threshold=0.45,
top_k=200,
nms_max_output_size=400)
model.load_weights(weights_path, by_name=True)
adam = Adam(lr=0.001, beta_1=0.9, beta_2=0.999, epsilon=1e-08, decay=0.0)
ssd_loss = SSDLoss(neg_pos_ratio=3, alpha=1.0)
model.compile(optimizer=adam, loss=ssd_loss.compute_loss)
original_images = []
process_images = []
cap = cv2.VideoCapture(video_path)
num = 0
while (cap.isOpened()):
ret, frame = cap.read()
if ret == True:
transposed_frame = cv2.transpose(frame)
transposed_frame = cv2.flip(transposed_frame, 1)
original_images.append(transposed_frame)
subtracted_image = cv2.subtract(transposed_frame,
original_images[0])
subtracted_image = subtracted_image[600:1000, 0:720]
#subtracted_image = cv2.bitwise_not(subtracted_image)
subtracted_image = enhance_image(subtracted_image)
cv2.imwrite(
'perimeter_detection/sub_images/sub_' + str(num) + '.jpg',
subtracted_image)
resize_image = cv2.resize(subtracted_image,
(img_height, img_width))
process_images.append(resize_image)
num += 1
k = cv2.waitKey(20)
if k & 0xff == ord('q'):
break
else:
break
print(len(original_images))
process_images = np.array(process_images)
cap.release()
# start_time = time.time()
y_pred = model.predict(process_images, batch_size=8)
# end_time = time.time()
# print(end_time - start_time)
confidence_threshold = 0.1
y_pred_thresh = [
y_pred[k][y_pred[k, :, 1] > confidence_threshold]
for k in range(y_pred.shape[0])
]
np.set_printoptions(precision=2, suppress=True, linewidth=90)
print(' class conf xmin ymin xmax ymax')
fourcc = cv2.VideoWriter_fourcc(*'MJPG')
result_video = cv2.VideoWriter(
'result.avi', fourcc, 25.0,
(original_images[0].shape[0], original_images[0].shape[1]))
for k in range(len(y_pred_thresh)):
print(k)
print(y_pred_thresh[k])
#colors = plt.cm.hsv(np.linspace(0, 1, 21)).tolist()
classes = [
'background', 'aeroplane', 'bicycle', 'bird', 'boat', 'bottle',
'bus', 'car', 'cat', 'chair', 'cow', 'diningtable', 'dog', 'horse',
'motorbike', 'person', 'pottedplant', 'sheep', 'sofa', 'train',
'tvmonitor'
]
#plt.figure(figsize=(12, 8))
#plt.imshow(original_images[k])
#plt.xticks([])
#plt.yticks([])
#current_axis = plt.gca()
for box in y_pred_thresh[k]:
if box[0] != 15:
continue
# Transform the predicted bounding boxes for the 300x300 image to the original image dimensions.
#xmin = box[2] * original_images[k].shape[1] / img_width
#ymin = box[3] * original_images[k].shape[0] / img_height
#xmax = box[4] * original_images[k].shape[1] / img_width
#ymax = box[5] * original_images[k].shape[0] / img_height
xmin = box[2] * 720 / 300
ymin = box[3] * 400 / 300 + 600
xmax = box[4] * 720 / 300
ymax = box[5] * 400 / 300 + 600
if xmin < 400:
continue
#color = colors[int(box[0])]
label = '{}: {:.2f}'.format(classes[int(box[0])], box[1])
#current_axis.add_patch(
# plt.Rectangle((xmin, ymin), xmax - xmin, ymax - ymin, color=color, fill=False, linewidth=2))
#current_axis.text(xmin, ymin, label, size='x-large', color='white', bbox={'facecolor': color, 'alpha': 1.0})
cv2.rectangle(original_images[k], (int(xmin), int(ymin)),
(int(xmax), int(ymax)), (0, 255, 0), 2)
#plt.savefig(result_path + '/detection_' + str(k) + '.jpg', format='jpg')
cv2.imwrite(result_path + '/detection_' + str(k) + '.jpg',
original_images[k])
result_image = original_images[k]
transposed_image = cv2.transpose(result_image)
transposed_image = cv2.flip(transposed_image, 0)
result_video.write(transposed_image)
plt.close('all')
result_video.release()
cv2.destroyAllWindows()
'''
def __init__(self):
rospy.init_node('model_tester_keras')
self.t_detect = 1.5 # minimum time between inferences
self.t_last_detect = rospy.Time.now()
self.img_pub = rospy.Publisher('image_detect', Image, queue_size=1)
img_height = 300 # Height of the input images
img_width = 300 # Width of the input images
img_channels = 3 # Number of color channels of the input images
subtract_mean = [123, 117, 104
] # The per-channel mean of the images in the dataset
swap_channels = [
2, 1, 0
] # The color channel order in the original SSD is BGR, so we should set this to `True`, but weirdly the results are better without swapping.
n_classes = 8 # Number of positive classes, e.g. 20 for Pascal VOC, 80 for MS COCO
scales = [
0.07, 0.15, 0.33, 0.51, 0.69, 0.87, 1.05
] # The anchor box scaling factors used in the original SSD300 for the MS COCO datasets.
# scales = [0.1, 0.2, 0.37, 0.54, 0.71, 0.88, 1.05] # The anchor box scaling factors used in the original SSD300 for the Pascal VOC datasets.
aspect_ratios = [
[1.0, 2.0, 0.5], [1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5, 3.0, 1.0 / 3.0], [1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5], [1.0, 2.0, 0.5]
] # The anchor box aspect ratios used in the original SSD300; the order matters
two_boxes_for_ar1 = True
steps = [
8, 16, 32, 64, 100, 300
] # The space between two adjacent anchor box center points for each predictor layer.
offsets = [
0.5, 0.5, 0.5, 0.5, 0.5, 0.5
] # The offsets of the first anchor box center points from the top and left borders of the image as a fraction of the step size for each predictor layer.
clip_boxes = False # Whether or not you want to limit the anchor boxes to lie entirely within the image boundaries
variances = [
0.1, 0.1, 0.2, 0.2
] # The variances by which the encoded target coordinates are scaled as in the original implementation
normalize_coords = True
keras.backend.clear_session()
self.model = ssd_300(image_size=(img_height, img_width, img_channels),
n_classes=n_classes,
mode='inference',
l2_regularization=0.0005,
scales=scales,
aspect_ratios_per_layer=aspect_ratios,
two_boxes_for_ar1=two_boxes_for_ar1,
steps=steps,
offsets=offsets,
clip_boxes=clip_boxes,
variances=variances,
normalize_coords=normalize_coords,
subtract_mean=subtract_mean,
divide_by_stddev=None,
swap_channels=swap_channels,
confidence_thresh=0.5,
iou_threshold=0.45,
top_k=200,
nms_max_output_size=400,
return_predictor_sizes=False)
self.model.load_weights(os.path.join(module_path, 'ssdx_wt.h5'),
by_name=True)
adam = Adam(lr=0.001,
beta_1=0.9,
beta_2=0.999,
epsilon=1e-08,
decay=0.0)
ssd_loss = SSDLoss(neg_pos_ratio=3, alpha=1.0)
self.model.compile(optimizer=adam, loss=ssd_loss.compute_loss)
# keras voodoo
global graph
graph = tf.get_default_graph()
self.model._make_predict_function()
img_sub = rospy.Subscriber('image_color',
Image,
self.img_cb,
queue_size=1)
self.bridge = CvBridge()
rospy.loginfo("READY")
rospy.spin()
def detect_from_video(config: Dict):
"""Inference on a video with output a video showing all prediction
Parameters
----------
config : Dict
Config yaml/json containing all parameter
"""
video = config['inference']['video_input']['video_input_path']
vp = VideoProcessing(video=video)
vp.generate_frames(export_path=config['inference']['video_input']['video_to_frames_export_path'])
if config['inference']['video_input']['video_to_frames_export_path'] == config['inference']['predicted_frames_export_path']:
print("[Warning]... You have given Video to frame path same as prediction output path /nPredicted output will overwrite video to frame")
img_height = config['inference']['img_height']
img_width = config['inference']['img_width']
model = ssd_300(image_size=(img_height, img_width, 3),
n_classes=config['inference']['n_classes'],
mode='inference',
l2_regularization=0.0005,
scales=[0.1, 0.2, 0.37, 0.54, 0.71, 0.88, 1.05], # The scales for MS COCO are [0.07, 0.15, 0.33, 0.51, 0.69, 0.87, 1.05]
aspect_ratios_per_layer=[[1.0, 2.0, 0.5],
[1.0, 2.0, 0.5, 3.0, 1.0/3.0],
[1.0, 2.0, 0.5, 3.0, 1.0/3.0],
[1.0, 2.0, 0.5, 3.0, 1.0/3.0],
[1.0, 2.0, 0.5],
[1.0, 2.0, 0.5]],
two_boxes_for_ar1=True,
steps=[8, 16, 32, 64, 100, 300],
offsets=[0.5, 0.5, 0.5, 0.5, 0.5, 0.5],
clip_boxes=False,
variances=[0.1, 0.1, 0.2, 0.2],
normalize_coords=True,
subtract_mean=[123, 117, 104],
swap_channels=[2, 1, 0],
confidence_thresh=0.5,
iou_threshold=0.45,
top_k=200,
nms_max_output_size=400)
# Load the trained weights into the model.
weights_path = config['inference']['weights_path']
model.load_weights(weights_path, by_name=True)
# Working with image
all_images = glob.glob(f"{config['inference']['video_input']['video_to_frames_export_path']}/*/*")
# Setting Up Prediction Threshold
confidence_threshold = config['inference']['confidence_threshold']
# Setting Up Classes (Note Should be in same order as in training)
classes = config['inference']['classes']
vp.existsFolder(f"{config['inference']['predicted_frames_export_path']}/{video.split('.')[0]}")
# Working with image
for current_img in tqdm(all_images):
current_img_name = current_img.split('/')[-1]
orig_image = cv2.imread(current_img)
input_images = [] # Store resized versions of the images here
img = image.load_img(current_img, target_size=(img_height, img_width))
img = image.img_to_array(img)
input_images.append(img)
input_images = np.array(input_images)
# Prediction
y_pred = model.predict(input_images)
# Using threshold
y_pred_thresh = [y_pred[k][y_pred[k,:,1] > confidence_threshold] for k in range(y_pred.shape[0])]
# Drawing Boxes
for box in y_pred_thresh[0]:
xmin = box[2] * orig_image.shape[1] / img_width
ymin = box[3] * orig_image.shape[0] / img_height
xmax = box[4] * orig_image.shape[1] / img_width
ymax = box[5] * orig_image.shape[0] / img_height
label = f"{classes[int(box[0])]}: {box[1]:.2f}"
cv2.rectangle(orig_image, (int(xmin), int(ymin)), (int(xmax),int(ymax)), (255, 0, 0), 2)
cv2.putText(orig_image, label, (int(xmin), int(ymin)), cv2.FONT_HERSHEY_SIMPLEX, 2, (255, 255, 255), 2, cv2.LINE_AA)
cv2.imwrite(f"{config['inference']['predicted_frames_export_path']}/{video.split('.')[0]}/{current_img_name}", orig_image)
# Creating video
vp.generate_video(import_path=config['inference']['predicted_frames_export_path'],
export_path=config['inference']['video_input']['video_output_path'])
def perimeter_detection(weights_path, image_path, result_path, threshold,
perimeter_a, perimeter_b):
img_height = 300
img_width = 300
K.clear_session() # Clear previous models from memory.
model = ssd_300(
image_size=(img_height, img_width, 3),
n_classes=20,
mode='inference',
l2_regularization=0.0005,
scales=[0.1, 0.2, 0.37, 0.54, 0.71, 0.88, 1.05],
# The scales for MS COCO are [0.07, 0.15, 0.33, 0.51, 0.69, 0.87, 1.05]
aspect_ratios_per_layer=[[1.0, 2.0, 0.5],
[1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5], [1.0, 2.0, 0.5]],
two_boxes_for_ar1=True,
steps=[8, 16, 32, 64, 100, 300],
offsets=[0.5, 0.5, 0.5, 0.5, 0.5, 0.5],
clip_boxes=False,
variances=[0.1, 0.1, 0.2, 0.2],
normalize_coords=True,
subtract_mean=[123, 117, 104],
swap_channels=[2, 1, 0],
confidence_thresh=0.5,
iou_threshold=0.45,
top_k=200,
nms_max_output_size=400)
model.load_weights(weights_path, by_name=True)
adam = Adam(lr=0.001, beta_1=0.9, beta_2=0.999, epsilon=1e-08, decay=0.0)
ssd_loss = SSDLoss(neg_pos_ratio=3, alpha=1.0)
model.compile(optimizer=adam, loss=ssd_loss.compute_loss)
original_images = []
process_images = []
file_names = []
for root, dirs, files in os.walk(image_path):
for file in files:
file_names.append(file)
img_path = image_path + '/' + file
original_images.append(imread(img_path))
resize_image = image.load_img(img_path,
target_size=(img_height, img_width))
resize_image = image.img_to_array(resize_image)
process_images.append(resize_image)
process_images = np.array(process_images)
#start_time = time.time()
y_pred = model.predict(process_images, batch_size=8)
#end_time = time.time()
#print(end_time - start_time)
confidence_threshold = 0.5
y_pred_thresh = [
y_pred[k][y_pred[k, :, 1] > confidence_threshold]
for k in range(y_pred.shape[0])
]
np.set_printoptions(precision=2, suppress=True, linewidth=90)
print(' class conf xmin ymin xmax ymax')
'''
for k in range(len(y_pred_thresh)):
print(file_names[k])
print(y_pred_thresh[k])
colors = plt.cm.hsv(np.linspace(0, 1, 21)).tolist()
classes = ['background',
'aeroplane', 'bicycle', 'bird', 'boat',
'bottle', 'bus', 'car', 'cat',
'chair', 'cow', 'diningtable', 'dog',
'horse', 'motorbike', 'person', 'pottedplant',
'sheep', 'sofa', 'train', 'tvmonitor']
plt.figure(figsize=(12, 8))
plt.imshow(original_images[k])
plt.xticks([])
plt.yticks([])
current_axis = plt.gca()
for box in y_pred_thresh[k]:
# Transform the predicted bounding boxes for the 300x300 image to the original image dimensions.
xmin = box[2] * original_images[k].shape[1] / img_width
ymin = box[3] * original_images[k].shape[0] / img_height
xmax = box[4] * original_images[k].shape[1] / img_width
ymax = box[5] * original_images[k].shape[0] / img_height
color = colors[int(box[0])]
label = '{}: {:.2f}'.format(classes[int(box[0])], box[1])
current_axis.add_patch(
plt.Rectangle((xmin, ymin), xmax - xmin, ymax - ymin, color=color, fill=False, linewidth=2))
current_axis.text(xmin, ymin, label, size='x-large', color='white', bbox={'facecolor': color, 'alpha': 1.0})
plt.savefig(result_path + '/detection_' + file_names[k], format='jpg')
plt.close('all')
'''
#start_time = time.time()
vector_a = np.array(
[perimeter_a[0] - perimeter_b[0], perimeter_a[1] - perimeter_b[1]])
distance_a = np.linalg.norm(vector_a)
for k in range(len(y_pred_thresh)):
print(file_names[k])
print(y_pred_thresh[k])
plt.figure(figsize=(12, 8))
plt.imshow(original_images[k])
plt.xticks([])
plt.yticks([])
current_axis = plt.gca()
flag = 0
for box in y_pred_thresh[k]:
if box[0] != 15:
continue
# Transform the predicted bounding boxes for the 300x300 image to the original image dimensions.
xmin = box[2] * original_images[k].shape[1] / img_width
ymin = box[3] * original_images[k].shape[0] / img_height
xmax = box[4] * original_images[k].shape[1] / img_width
ymax = box[5] * original_images[k].shape[0] / img_height
vector_b = np.array([xmin - perimeter_a[0], ymin - perimeter_a[1]])
vector_cross = np.cross(vector_a, vector_b)
distance = np.linalg.norm(vector_cross / distance_a)
if vector_cross >= 0 or distance < threshold:
flag = 1
current_axis.add_patch(
plt.Rectangle((xmin, ymin),
xmax - xmin,
ymax - ymin,
color='#FF0000',
fill=False,
linewidth=2))
continue
vector_b = np.array([xmin - perimeter_a[0], ymax - perimeter_a[1]])
vector_cross = np.cross(vector_a, vector_b)
distance = np.linalg.norm(vector_cross / distance_a)
if vector_cross >= 0 or distance < threshold:
flag = 1
current_axis.add_patch(
plt.Rectangle((xmin, ymin),
xmax - xmin,
ymax - ymin,
color='#FF0000',
fill=False,
linewidth=2))
continue
vector_b = np.array([xmax - perimeter_a[0], ymin - perimeter_a[1]])
vector_cross = np.cross(vector_a, vector_b)
distance = np.linalg.norm(vector_cross / distance_a)
if vector_cross >= 0 or distance < threshold:
flag = 1
current_axis.add_patch(
plt.Rectangle((xmin, ymin),
xmax - xmin,
ymax - ymin,
color='#FF0000',
fill=False,
linewidth=2))
continue
vector_b = np.array([xmax - perimeter_a[0], ymax - perimeter_a[1]])
vector_cross = np.cross(vector_a, vector_b)
distance = np.linalg.norm(vector_cross / distance_a)
if vector_cross >= 0 or distance < threshold:
flag = 1
current_axis.add_patch(
plt.Rectangle((xmin, ymin),
xmax - xmin,
ymax - ymin,
color='#FF0000',
fill=False,
linewidth=2))
continue
current_axis.add_patch(
plt.Rectangle((xmin, ymin),
xmax - xmin,
ymax - ymin,
color='#00FF00',
fill=False,
linewidth=2))
print(flag)
line = Line2D([perimeter_a[0], perimeter_b[0]],
[perimeter_a[1], perimeter_b[1]],
color='#000000')
current_axis.add_line(line)
#plt.plot([perimeter_a[0], perimeter_b[0]], [perimeter_a[1], perimeter_b[1]], 'k')
plt.savefig(result_path + '/perimeter_' + file_names[k], format='jpg')
plt.close('all')
def _main_(args):
print('Hello World! This is {:s}'.format(args.desc))
# config_path = args.conf
# with open(config_path) as config_buffer:
# config = json.loads(config_buffer.read())
#############################################################
# Set model parameters
#############################################################
img_height = 300 # Height of the model input images
img_width = 300 # Width of the model input images
img_channels = 3 # Number of color channels of the model input images
mean_color = [123, 117, 104] # The per-channel mean of the images in the dataset. Do not change this value if you're using any of the pre-trained weights.
swap_channels = [2, 1, 0] # The color channel order in the original SSD is BGR, so we'll have the model reverse the color channel order of the input images.
n_classes = 20 # Number of positive classes, e.g. 20 for Pascal VOC, 80 for MS COCO
scales_pascal = [0.1, 0.2, 0.37, 0.54, 0.71, 0.88, 1.05] # The anchor box scaling factors used in the original SSD300 for the Pascal VOC datasets
scales_coco = [0.07, 0.15, 0.33, 0.51, 0.69, 0.87, 1.05] # The anchor box scaling factors used in the original SSD300 for the MS COCO datasets
scales = scales_pascal
aspect_ratios = [[1.0, 2.0, 0.5],
[1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5],
[1.0, 2.0, 0.5]] # The anchor box aspect ratios used in the original SSD300; the order matters
two_boxes_for_ar1 = True
steps = [8, 16, 32, 64, 100, 300] # The space between two adjacent anchor box center points for each predictor layer.
offsets = [0.5, 0.5, 0.5, 0.5, 0.5, 0.5] # The offsets of the first anchor box center points from the top and left borders of the image as a fraction of the step size for each predictor layer.
clip_boxes = False # Whether or not to clip the anchor boxes to lie entirely within the image boundaries
variances = [0.1, 0.1, 0.2, 0.2] # The variances by which the encoded target coordinates are divided as in the original implementation
normalize_coords = True
#############################################################
# Create the model
#############################################################
# 1: Build the Keras model.
model = ssd_300(image_size=(img_height, img_width, img_channels),
n_classes=n_classes,
mode='training',
l2_regularization=0.0005,
scales=scales,
aspect_ratios_per_layer=aspect_ratios,
two_boxes_for_ar1=two_boxes_for_ar1,
steps=steps,
offsets=offsets,
clip_boxes=clip_boxes,
variances=variances,
normalize_coords=normalize_coords,
subtract_mean=mean_color,
swap_channels=swap_channels)
# 2: Load some weights into the model.
# 3: Instantiate an optimizer and the SSD loss function and compile the model.
adam = Adam(lr=0.001, beta_1=0.9, beta_2=0.999, epsilon=1e-08, decay=0.0)
ssd_loss = SSDLoss(neg_pos_ratio=3, alpha=1.0)
model.compile(optimizer=adam, loss=ssd_loss.compute_loss)
#############################################################
# Prepare the data
#############################################################
# 1: Instantiate two `DataGenerator` objects: One for training, one for validation.
train_dataset = DataGenerator(load_images_into_memory=False, hdf5_dataset_path=None)
val_dataset = DataGenerator(load_images_into_memory=False, hdf5_dataset_path=None)
# 2: Parse the image and label lists for the training and validation datasets. This can take a while.
VOC_2007_images_dir = '/home/minhnc-lab/WORKSPACES/AI/data/VOC/VOCtrainval_06-Nov-2007/VOCdevkit/VOC2007/JPEGImages'
VOC_2007_annotations_dir = '/home/minhnc-lab/WORKSPACES/AI/data/VOC/VOCtrainval_06-Nov-2007/VOCdevkit/VOC2007/Annotations'
VOC_2007_train_image_set_filename = '/home/minhnc-lab/WORKSPACES/AI/data/VOC/VOCtrainval_06-Nov-2007/VOCdevkit/VOC2007/ImageSets/Main/train.txt'
VOC_2007_val_image_set_filename = '/home/minhnc-lab/WORKSPACES/AI/data/VOC/VOCtrainval_06-Nov-2007/VOCdevkit/VOC2007/ImageSets/Main/val.txt'
# VOC_2007_trainval_image_set_filename = '/home/minhnc-lab/WORKSPACES/AI/data/VOC/VOCtrainval_06-Nov-2007/VOCdevkit/VOC2007/ImageSets/Main/trainval.txt'
# VOC_2007_test_image_set_filename = '/home/minhnc-lab/WORKSPACES/AI/data/VOC/VOCtest_06-Nov-2007/VOCdevkit/VOC2007/ImageSets/Main/test.txt'
classes = ['background',
'aeroplane', 'bicycle', 'bird', 'boat',
'bottle', 'bus', 'car', 'cat',
'chair', 'cow', 'diningtable', 'dog',
'horse', 'motorbike', 'person', 'pottedplant',
'sheep', 'sofa', 'train', 'tvmonitor']
train_dataset.parse_xml(images_dirs=[VOC_2007_images_dir],
image_set_filenames=[VOC_2007_train_image_set_filename],
annotations_dirs=[VOC_2007_annotations_dir],
classes=classes,
include_classes='all',
exclude_truncated=False,
exclude_difficult=False,
ret=False)
val_dataset.parse_xml(images_dirs=[VOC_2007_images_dir],
image_set_filenames=[VOC_2007_val_image_set_filename],
annotations_dirs=[VOC_2007_annotations_dir],
classes=classes,
include_classes='all',
exclude_truncated=False,
exclude_difficult=True,
ret=False)
train_dataset.create_hdf5_dataset(file_path='dataset_pascal_voc_07+12_trainval.h5',
resize=False,
variable_image_size=True,
verbose=True)
val_dataset.create_hdf5_dataset(file_path='dataset_pascal_voc_07_test.h5',
resize=False,
variable_image_size=True,
verbose=True)
# 3: Set the batch size.
batch_size = 8 # Change the batch size if you like, or if you run into GPU memory issues.
# 4: Set the image transformations for pre-processing and data augmentation options.
ssd_data_augmentation = SSDDataAugmentation(img_height=img_height,
img_width=img_width,
background=mean_color)
convert_to_3_channels = ConvertTo3Channels()
resize = Resize(height=img_height, width=img_width)
# 5: Instantiate an encoder that can encode ground truth labels into the format needed by the SSD loss function.
predictor_sizes = [model.get_layer('conv4_3_norm_mbox_conf').output_shape[1:3],
model.get_layer('fc7_mbox_conf').output_shape[1:3],
model.get_layer('conv6_2_mbox_conf').output_shape[1:3],
model.get_layer('conv7_2_mbox_conf').output_shape[1:3],
model.get_layer('conv8_2_mbox_conf').output_shape[1:3],
model.get_layer('conv9_2_mbox_conf').output_shape[1:3]]
ssd_input_encoder = SSDInputEncoder(img_height=img_height,
img_width=img_width,
n_classes=n_classes,
predictor_sizes=predictor_sizes,
scales=scales,
aspect_ratios_per_layer=aspect_ratios,
two_boxes_for_ar1=two_boxes_for_ar1,
steps=steps,
offsets=offsets,
clip_boxes=clip_boxes,
variances=variances,
matching_type='multi',
pos_iou_threshold=0.5,
neg_iou_limit=0.5,
normalize_coords=normalize_coords)
# 6: Create the generator handles that will be passed to Keras' `fit_generator()` function.
train_generator = train_dataset.generate(batch_size=batch_size,
shuffle=True,
transformations=[ssd_data_augmentation],
label_encoder=ssd_input_encoder,
returns={'processed_images',
'encoded_labels'},
keep_images_without_gt=False)
val_generator = val_dataset.generate(batch_size=batch_size,
shuffle=False,
transformations=[convert_to_3_channels,
resize],
label_encoder=ssd_input_encoder,
returns={'processed_images',
'encoded_labels'},
keep_images_without_gt=False)
# Get the number of samples in the training and validations datasets.
train_dataset_size = train_dataset.get_dataset_size()
val_dataset_size = val_dataset.get_dataset_size()
print("Number of images in the training dataset:\t{:>6}".format(train_dataset_size))
print("Number of images in the validation dataset:\t{:>6}".format(val_dataset_size))
#############################################################
# Kick off the training
#############################################################
# Define model callbacks.
model_checkpoint = ModelCheckpoint(
filepath='ssd300_pascal_07+12_epoch-{epoch:02d}_loss-{loss:.4f}_val_loss-{val_loss:.4f}.h5',
monitor='val_loss',
verbose=1,
save_best_only=True,
save_weights_only=False,
mode='auto',
period=1)
csv_logger = CSVLogger(filename='ssd300_pascal_07+12_training_log.csv',
separator=',',
append=True)
learning_rate_scheduler = LearningRateScheduler(schedule=lr_schedule,
verbose=1)
terminate_on_nan = TerminateOnNaN()
callbacks = [model_checkpoint,
csv_logger,
learning_rate_scheduler,
terminate_on_nan]
# Train
initial_epoch = 0
final_epoch = 120
steps_per_epoch = 1000
history = model.fit_generator(generator=train_generator,
steps_per_epoch=steps_per_epoch,
epochs=final_epoch,
callbacks=callbacks,
validation_data=val_generator,
validation_steps=ceil(val_dataset_size / batch_size),
initial_epoch=initial_epoch)
#############################################################
# Run the evaluation
#############################################################
# 1: Set the generator for the predictions.
predict_generator = val_dataset.generate(batch_size=1,
shuffle=True,
transformations=[convert_to_3_channels,
resize],
label_encoder=None,
returns={'processed_images',
'filenames',
'inverse_transform',
'original_images',
'original_labels'},
keep_images_without_gt=False)
# 2: Generate samples.
batch_images, batch_filenames, batch_inverse_transforms, batch_original_images, batch_original_labels = next(
predict_generator)
i = 0 # Which batch item to look at
print("Image:", batch_filenames[i])
print()
print("Ground truth boxes:\n")
print(np.array(batch_original_labels[i]))
# 3: Make predictions.
y_pred = model.predict(batch_images)
# 4: Decode the raw predictions in `y_pred`.
y_pred_decoded = decode_detections(y_pred,
confidence_thresh=0.5,
iou_threshold=0.4,
top_k=200,
normalize_coords=normalize_coords,
img_height=img_height,
img_width=img_width)
# 5: Convert the predictions for the original image.
y_pred_decoded_inv = apply_inverse_transforms(y_pred_decoded, batch_inverse_transforms)
np.set_printoptions(precision=2, suppress=True, linewidth=90)
print("Predicted boxes:\n")
print(' class conf xmin ymin xmax ymax')
print(y_pred_decoded_inv[i])
# 6: Draw the predicted boxes onto the image
# Set the colors for the bounding boxes
colors = plt.cm.hsv(np.linspace(0, 1, n_classes + 1)).tolist()
classes = ['background',
'aeroplane', 'bicycle', 'bird', 'boat',
'bottle', 'bus', 'car', 'cat',
'chair', 'cow', 'diningtable', 'dog',
'horse', 'motorbike', 'person', 'pottedplant',
'sheep', 'sofa', 'train', 'tvmonitor']
plt.figure(figsize=(20, 12))
plt.imshow(batch_original_images[i])
current_axis = plt.gca()
for box in batch_original_labels[i]:
xmin = box[1]
ymin = box[2]
xmax = box[3]
ymax = box[4]
label = '{}'.format(classes[int(box[0])])
current_axis.add_patch(
plt.Rectangle((xmin, ymin), xmax - xmin, ymax - ymin, color='green', fill=False, linewidth=2))
current_axis.text(xmin, ymin, label, size='x-large', color='white', bbox={'facecolor': 'green', 'alpha': 1.0})
for box in y_pred_decoded_inv[i]:
xmin = box[2]
ymin = box[3]
xmax = box[4]
ymax = box[5]
color = colors[int(box[0])]
label = '{}: {:.2f}'.format(classes[int(box[0])], box[1])
current_axis.add_patch(
plt.Rectangle((xmin, ymin), xmax - xmin, ymax - ymin, color=color, fill=False, linewidth=2))
current_axis.text(xmin, ymin, label, size='x-large', color='white', bbox={'facecolor': color, 'alpha': 1.0})
def main(job_dir, **args):
##Setting up the path for saving logs
logs_dir = job_dir + 'logs/'
data_dir = "gs://deeplearningteam11/data"
print("Current Directory: " + os.path.dirname(__file__))
print("Lets copy the data to: " + os.path.dirname(__file__))
os.system("gsutil -m cp -r " + data_dir + " " +
os.path.dirname(__file__) + " > /dev/null 2>&1 ")
#exit(0)
with tf.device('/device:GPU:0'):
# 1: Build the Keras model.
K.clear_session() # Clear previous models from memory.
model = ssd_300(image_size=(img_height, img_width, img_channels),
n_classes=n_classes,
mode='training',
l2_regularization=0.0005,
scales=scales,
aspect_ratios_per_layer=aspect_ratios,
two_boxes_for_ar1=two_boxes_for_ar1,
steps=steps,
offsets=offsets,
clip_boxes=clip_boxes,
variances=variances,
normalize_coords=normalize_coords,
subtract_mean=mean_color,
swap_channels=swap_channels)
# Set the path to the `.h5` file of the model to be loaded.
model_file = file_io.FileIO('gs://deeplearningteam11/vgg19BNmodel.h5',
mode='rb')
# Store model locally on instance
model_path = 'model.h5'
with open(model_path, 'wb') as f:
f.write(model_file.read())
model_file.close()
ssd_loss = SSDLoss(neg_pos_ratio=3, alpha=1.0)
model = load_model(model_path,
custom_objects={
'AnchorBoxes': AnchorBoxes,
'L2Normalization': L2Normalization,
'DecodeDetections': DecodeDetections,
'compute_loss': ssd_loss.compute_loss
})
for layer in model.layers:
layer.trainable = True
model.summary()
# 1: Instantiate two `DataGenerator` objects: One for training, one for validation.
train_dataset = DataGenerator(load_images_into_memory=True,
hdf5_dataset_path=None)
val_dataset = DataGenerator(load_images_into_memory=True,
hdf5_dataset_path=None)
# 2: Parse the image and label lists for the training and validation datasets. This can take a while.
# VOC 2007
# The directories that contain the images.
VOC_2007_train_images_dir = 'data/data/VOC2007/train/JPEGImages/'
VOC_2007_test_images_dir = 'data/data/VOC2007/test/JPEGImages/'
VOC_2007_train_anns_dir = 'data/data/VOC2007/train/Annotations/'
VOC_2007_test_anns_dir = 'data/data/VOC2007/test/Annotations/'
# The paths to the image sets.
VOC_2007_trainval_image_set_dir = 'data/data/VOC2007/train/ImageSets/Main/'
VOC_2007_test_image_set_dir = 'data/data/VOC2007/test/ImageSets/Main/'
VOC_2007_train_images_dir = os.path.dirname(
__file__) + "/" + VOC_2007_train_images_dir
VOC_2007_test_images_dir = os.path.dirname(
__file__) + "/" + VOC_2007_test_images_dir
VOC_2007_train_anns_dir = os.path.dirname(
__file__) + "/" + VOC_2007_train_anns_dir
VOC_2007_test_anns_dir = os.path.dirname(
__file__) + "/" + VOC_2007_test_anns_dir
VOC_2007_trainval_image_set_dir = os.path.dirname(
__file__) + "/" + VOC_2007_trainval_image_set_dir
VOC_2007_test_image_set_dir = os.path.dirname(
__file__) + "/" + VOC_2007_test_image_set_dir
VOC_2007_trainval_image_set_filename = VOC_2007_trainval_image_set_dir + '/trainval.txt'
VOC_2007_test_image_set_filename = VOC_2007_test_image_set_dir + '/test.txt'
# The XML parser needs to now what object class names to look for and in which order to map them to integers.
classes = [
'background', 'aeroplane', 'bicycle', 'bird', 'boat', 'bottle',
'bus', 'car', 'cat', 'chair', 'cow', 'diningtable', 'dog', 'horse',
'motorbike', 'person', 'pottedplant', 'sheep', 'sofa', 'train',
'tvmonitor'
]
print("Parsing Training Data ...")
train_dataset.parse_xml(
images_dirs=[VOC_2007_train_images_dir],
image_set_filenames=[VOC_2007_trainval_image_set_filename],
annotations_dirs=[VOC_2007_train_anns_dir],
classes=classes,
include_classes='all',
exclude_truncated=False,
exclude_difficult=False,
ret=False,
verbose=False)
print("Done")
print(
"================================================================")
print("Parsing Test Data ...")
val_dataset.parse_xml(
images_dirs=[VOC_2007_test_images_dir],
image_set_filenames=[VOC_2007_test_image_set_filename],
annotations_dirs=[VOC_2007_test_anns_dir],
classes=classes,
include_classes='all',
exclude_truncated=False,
exclude_difficult=True,
ret=False,
verbose=False)
print("Done")
print(
"================================================================")
# 3: Set the batch size.
batch_size = 32 # Change the batch size if you like, or if you run into GPU memory issues.
# 4: Set the image transformations for pre-processing and data augmentation options.
# For the training generator:
ssd_data_augmentation = SSDDataAugmentation(img_height=img_height,
img_width=img_width,
background=mean_color)
# For the validation generator:
convert_to_3_channels = ConvertTo3Channels()
resize = Resize(height=img_height, width=img_width)
# 5: Instantiate an encoder that can encode ground truth labels into the format needed by the SSD loss function.
# The encoder constructor needs the spatial dimensions of the model's predictor layers to create the anchor boxes.
predictor_sizes = [
model.get_layer('conv4_4_norm_mbox_conf').output_shape[1:3],
model.get_layer('fc7_mbox_conf').output_shape[1:3],
model.get_layer('conv8_2_mbox_conf').output_shape[1:3],
model.get_layer('conv9_2_mbox_conf').output_shape[1:3],
model.get_layer('conv10_2_mbox_conf').output_shape[1:3],
model.get_layer('conv11_2_mbox_conf').output_shape[1:3]
]
ssd_input_encoder = SSDInputEncoder(
img_height=img_height,
img_width=img_width,
n_classes=n_classes,
predictor_sizes=predictor_sizes,
scales=scales,
aspect_ratios_per_layer=aspect_ratios,
two_boxes_for_ar1=two_boxes_for_ar1,
steps=steps,
offsets=offsets,
clip_boxes=clip_boxes,
variances=variances,
matching_type='multi',
pos_iou_threshold=0.5,
neg_iou_limit=0.5,
normalize_coords=normalize_coords)
# 6: Create the generator handles that will be passed to Keras' `fit_generator()` function.
train_generator = train_dataset.generate(
batch_size=batch_size,
shuffle=True,
transformations=[ssd_data_augmentation],
label_encoder=ssd_input_encoder,
returns={'processed_images', 'encoded_labels'},
keep_images_without_gt=False)
val_generator = val_dataset.generate(
batch_size=batch_size,
shuffle=False,
transformations=[convert_to_3_channels, resize],
label_encoder=ssd_input_encoder,
returns={'processed_images', 'encoded_labels'},
keep_images_without_gt=False)
# Get the number of samples in the training and validations datasets.
train_dataset_size = train_dataset.get_dataset_size()
val_dataset_size = val_dataset.get_dataset_size()
print("Number of images in the training dataset:\t{:>6}".format(
train_dataset_size))
print("Number of images in the validation dataset:\t{:>6}".format(
val_dataset_size))
# Define a learning rate schedule.
def lr_schedule(epoch):
return 1e-6
# if epoch < 80:
# return 0.001
# elif epoch < 100:
# return 0.0001
# else:
# return 0.00001
learning_rate_scheduler = LearningRateScheduler(schedule=lr_schedule,
verbose=1)
terminate_on_nan = TerminateOnNaN()
callbacks = [learning_rate_scheduler, terminate_on_nan]
# If you're resuming a previous training, set `initial_epoch` and `final_epoch` accordingly.
initial_epoch = 120
final_epoch = 200
steps_per_epoch = 500
history = model.fit_generator(generator=train_generator,
steps_per_epoch=steps_per_epoch,
epochs=final_epoch,
callbacks=callbacks,
validation_data=val_generator,
validation_steps=ceil(val_dataset_size /
batch_size),
initial_epoch=initial_epoch)
model_name = "vgg19BNmodel_cont.h5"
model.save(model_name)
with file_io.FileIO(model_name, mode='rb') as input_f:
with file_io.FileIO("gs://deeplearningteam11/" + model_name,
mode='w+') as output_f:
output_f.write(input_f.read())
# 1: Build the Keras model
K.clear_session() # Clear previous models from memory.
model = ssd_300(image_size=(img_height, img_width, img_channels),
n_classes=n_classes,
#mode='inference',
mode='training',
l2_regularization=0.0005,
scales=scales,
aspect_ratios_per_layer=aspect_ratios,
two_boxes_for_ar1=two_boxes_for_ar1,
steps=steps,
offsets=offsets,
clip_boxes=clip_boxes,
variances=variances,
normalize_coords=normalize_coords,
subtract_mean=subtract_mean,
divide_by_stddev=None,
swap_channels=swap_channels,
confidence_thresh=0.5,
iou_threshold=0.45,
top_k=200,
nms_max_output_size=400,
return_predictor_sizes=False)
print("Model built.")
# 2: Load the sub-sampled weights into the model.
def main():
# create dataset
dataset = DataGenerator()
dataset.parse_xml(images_dirs=[dataset_images_dir],
image_set_filenames=[test_image_set_filename],
annotations_dirs=[dataset_annotations_dir],
classes=classes,
include_classes='all',
exclude_truncated=False,
exclude_difficult=False,
ret=False)
# create model
model = ssd_300(
image_size=(img_height, img_width, 3),
n_classes=n_classes,
mode=model_mode,
l2_regularization=0.0005,
scales=[
0.1, 0.2, 0.37, 0.54, 0.71, 0.88, 1.05
], # The scales for MS COCO are [0.07, 0.15, 0.33, 0.51, 0.69, 0.87, 1.05]
aspect_ratios_per_layer=[[1.0, 2.0, 0.5],
[1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5], [1.0, 2.0, 0.5]],
two_boxes_for_ar1=True,
steps=None,
offsets=[0.5, 0.5, 0.5, 0.5, 0.5, 0.5],
clip_boxes=False,
variances=[0.1, 0.1, 0.2, 0.2],
normalize_coords=True,
subtract_mean=[123, 117, 104],
swap_channels=[2, 1, 0],
confidence_thresh=1.0e-4,
iou_threshold=0.45,
top_k=200,
nms_max_output_size=400)
# load weights and compile it
model.load_weights(weights_path, by_name=True)
adam = Adam(lr=0.001, beta_1=0.9, beta_2=0.999, epsilon=1e-08, decay=0.0)
ssd_loss = SSDLoss(neg_pos_ratio=3, alpha=1.0)
model.compile(optimizer=adam, loss=ssd_loss.compute_loss)
evaluator = Evaluator(model=model,
n_classes=n_classes,
data_generator=dataset,
model_mode=model_mode)
results = evaluator(img_height=img_height,
img_width=img_width,
batch_size=8,
data_generator_mode='resize',
round_confidences=False,
matching_iou_threshold=0.5,
border_pixels='include',
sorting_algorithm='quicksort',
average_precision_mode='sample',
num_recall_points=11,
ignore_neutral_boxes=True,
return_precisions=True,
return_recalls=True,
return_average_precisions=True,
verbose=True)
mean_average_precision, average_precisions, precisions, recalls = results
for i in range(1, len(average_precisions)):
print("{:<14}{:<6}{}".format(classes[i], 'AP',
round(average_precisions[i], 3)))
print()
print("{:<14}{:<6}{}".format('', 'mAP', round(mean_average_precision, 3)))
m = max((n_classes + 1) // 2, 2)
n = 2
fig, cells = plt.subplots(m, n, figsize=(n * 8, m * 8))
for i in range(m):
for j in range(n):
if n * i + j + 1 > n_classes: break
cells[i, j].plot(recalls[n * i + j + 1],
precisions[n * i + j + 1],
color='blue',
linewidth=1.0)
cells[i, j].set_xlabel('recall', fontsize=14)
cells[i, j].set_ylabel('precision', fontsize=14)
cells[i, j].grid(True)
cells[i, j].set_xticks(np.linspace(0, 1, 6))
cells[i, j].set_yticks(np.linspace(0, 1, 6))
cells[i, j].set_xlim(0.0, 1.0)
cells[i, j].set_ylim(0.0, 1.0)
cells[i, j].set_title("{}, AP: {:.3f}".format(
classes[n * i + j + 1], average_precisions[n * i + j + 1]),
fontsize=16)
if not os.path.isdir("evaluate_result"):
os.makedirs("evaluate_result")
plt.savefig('evaluate_result/ssd300_face_detection.png')
def main():
model_mode = 'inference'
K.clear_session() # Clear previous models from memory.
model = ssd_300(image_size=(Config.img_height, Config.img_width,
Config.img_channels),
n_classes=Config.n_classes,
mode=model_mode,
l2_regularization=Config.l2_regularization,
scales=Config.scales,
aspect_ratios_per_layer=Config.aspect_ratios,
two_boxes_for_ar1=True,
steps=Config.steps,
offsets=Config.offsets,
clip_boxes=False,
variances=Config.variances,
normalize_coords=Config.normalize_coords,
subtract_mean=Config.mean_color,
swap_channels=[2, 1, 0],
confidence_thresh=0.01,
iou_threshold=0.45,
top_k=200,
nms_max_output_size=400)
# 2: Load the trained weights into the model.
weights_path = os.getcwd() + '/weights/' + args.model_name + ".h5"
model.load_weights(weights_path, by_name=True)
adam = Adam(lr=0.001, beta_1=0.9, beta_2=0.999, epsilon=1e-08, decay=0.0)
ssd_loss = SSDLoss(neg_pos_ratio=3, alpha=1.0)
model.compile(optimizer=adam, loss=ssd_loss.compute_loss)
test_dataset = DataGenerator(load_images_into_memory=True,
hdf5_dataset_path=os.getcwd() + "/data/" +
args.dataset + '/polyp_test.h5')
test_dataset_size = test_dataset.get_dataset_size()
print("Number of images in the test dataset:\t{:>6}".format(
test_dataset_size))
classes = ['background', 'polyp']
generator = test_dataset.generate(batch_size=1,
shuffle=True,
transformations=[],
returns={
'processed_images', 'filenames',
'inverse_transform',
'original_images', 'original_labels'
},
keep_images_without_gt=False)
# Generate a batch and make predictions.
i = 0
confidence_threshold = Config.confidence_threshold
for val in range(test_dataset_size):
batch_images, batch_filenames, batch_inverse_transforms, batch_original_images, batch_original_labels = next(
generator)
print("Ground truth boxes:\n")
print(np.array(batch_original_labels[i]))
y_pred = model.predict(batch_images)
# Perform confidence thresholding.
y_pred_thresh = [
y_pred[k][y_pred[k, :, 1] > confidence_threshold]
for k in range(y_pred.shape[0])
]
# Convert the predictions for the original image.
# y_pred_thresh_inv = apply_inverse_transforms(y_pred_thresh, batch_inverse_transforms)
np.set_printoptions(precision=2, suppress=True, linewidth=90)
print("Predicted boxes:\n")
print(' class conf xmin ymin xmax ymax')
print(y_pred_thresh[i])
plt.figure(figsize=(20, 12))
plt.imshow(batch_images[i])
current_axis = plt.gca()
colors = plt.cm.hsv(
np.linspace(0, 1, Config.n_classes +
1)).tolist() # Set the colors for the bounding boxes
classes = [
'background', 'polyps'
] # Just so we can print class names onto the image instead of IDs
for box in batch_original_labels[i]:
xmin = box[1]
ymin = box[2]
xmax = box[3]
ymax = box[4]
label = '{}'.format(classes[int(box[0])])
current_axis.add_patch(
plt.Rectangle((xmin, ymin),
xmax - xmin,
ymax - ymin,
color='green',
fill=False,
linewidth=2))
current_axis.text(xmin,
ymin,
label,
size='x-large',
color='white',
bbox={
'facecolor': 'green',
'alpha': 1.0
})
for box in y_pred_thresh[i]:
xmin = box[2]
ymin = box[3]
xmax = box[4]
ymax = box[5]
color = colors[int(box[0])]
label = '{}: {:.2f}'.format(classes[int(box[0])], box[1])
current_axis.add_patch(
plt.Rectangle((xmin, ymin),
xmax - xmin,
ymax - ymin,
color=color,
fill=False,
linewidth=2))
current_axis.text(xmin,
ymin,
label,
size='x-large',
color='white',
bbox={
'facecolor': color,
'alpha': 1.0
})
image = plt.gcf()
# plt.show()
plt.draw()
image.savefig(os.getcwd() + "/val_ssd300/val_" + str(val) + ".png",
dpi=100)
evaluator = Evaluator(model=model,
n_classes=Config.n_classes,
data_generator=test_dataset,
model_mode=model_mode)
results = evaluator(img_height=Config.img_height,
img_width=Config.img_width,
batch_size=args.batch_size,
data_generator_mode='resize',
round_confidences=False,
matching_iou_threshold=0.3,
border_pixels='include',
sorting_algorithm='quicksort',
average_precision_mode='sample',
num_recall_points=11,
ignore_neutral_boxes=True,
return_precisions=True,
return_recalls=True,
return_average_precisions=True,
verbose=True)
mean_average_precision, average_precisions, precisions, recalls, tp_count, fp_count, fn_count, polyp_precision, polyp_recall = results
print("TP : %d, FP : %d, FN : %d " % (tp_count, fp_count, fn_count))
print("{:<14}{:<6}{}".format('polyp', 'Precision ',
round(polyp_precision, 3)))
print("{:<14}{:<6}{}".format('polyp', 'Recall ', round(polyp_recall, 3)))
# for i in range(1, len(average_precisions)):
# print("{:<14}{:<6}{}".format(classes[i], 'AP', round(average_precisions[i], 3)))
#
# print("{:<14}{:<6}{}".format('', 'mAP', round(mean_average_precision, 3)))
# print('Precisions', np.mean(precisions[1]))
# print('Recalls', np.mean(recalls[1]))
m = max((Config.n_classes + 1) // 2, 2)
n = 2
fig, cells = plt.subplots(m, n, figsize=(n * 8, m * 8))
val = 0
for i in range(m):
for j in range(n):
if n * i + j + 1 > Config.n_classes: break
cells[i, j].plot(recalls[n * i + j + 1],
precisions[n * i + j + 1],
color='blue',
linewidth=1.0)
cells[i, j].set_xlabel('recall', fontsize=14)
cells[i, j].set_ylabel('precision', fontsize=14)
cells[i, j].grid(True)
cells[i, j].set_xticks(np.linspace(0, 1, 11))
cells[i, j].set_yticks(np.linspace(0, 1, 11))
cells[i, j].set_title("{}, AP: {:.3f}".format(
classes[n * i + j + 1], average_precisions[n * i + j + 1]),
fontsize=16)
image = plt.gcf()
# plt.show()
plt.draw()
image.savefig(os.getcwd() + "/test_out/test_" + str(val) + ".png",
dpi=100)
val += 1
def _main_(args):
config_path = args.conf
with open(config_path) as config_buffer:
config = json.loads(config_buffer.read())
###############################
# Parse the annotations
###############################
path_imgs_training = config['train']['train_image_folder']
path_anns_training = config['train']['train_annot_folder']
path_imgs_val = config['valid']['valid_image_folder']
path_anns_val = config['valid']['valid_annot_folder']
labels = config['model']['labels']
categories = {}
#categories = {"Razor": 1, "Gun": 2, "Knife": 3, "Shuriken": 4} #la categoría 0 es la background
for i in range(len(labels)):
categories[labels[i]] = i + 1
print('\nTraining on: \t' + str(categories) + '\n')
####################################
# Parameters
###################################
#%%
img_height = config['model']['input'] # Height of the model input images
img_width = config['model']['input'] # Width of the model input images
img_channels = 3 # Number of color channels of the model input images
mean_color = [
123, 117, 104
] # The per-channel mean of the images in the dataset. Do not change this value if you're using any of the pre-trained weights.
swap_channels = [
2, 1, 0
] # The color channel order in the original SSD is BGR, so we'll have the model reverse the color channel order of the input images.
n_classes = len(
labels
) # Number of positive classes, e.g. 20 for Pascal VOC, 80 for MS COCO
scales_pascal = [
0.1, 0.2, 0.37, 0.54, 0.71, 0.88, 1.05
] # The anchor box scaling factors used in the original SSD300 for the Pascal VOC datasets
#scales_coco = [0.07, 0.15, 0.33, 0.51, 0.69, 0.87, 1.05] # The anchor box scaling factors used in the original SSD300 for the MS COCO datasets
scales = scales_pascal
aspect_ratios = [
[1.0,
2.0, 0.5], [1.0, 2.0, 0.5, 3.0,
1.0 / 3.0],
[1.0, 2.0, 0.5,
3.0, 1.0 / 3.0], [1.0, 2.0, 0.5, 3.0, 1.0 / 3.0
], [1.0, 2.0, 0.5
], [1.0, 2.0, 0.5]
] # The anchor box aspect ratios used in the original SSD300; the order matters
two_boxes_for_ar1 = True
steps = [
8, 16, 32, 64, 100, 300
] # The space between two adjacent anchor box center points for each predictor layer.
offsets = [
0.5, 0.5, 0.5, 0.5, 0.5, 0.5
] # The offsets of the first anchor box center points from the top and left borders of the image as a fraction of the step size for each predictor layer.
clip_boxes = False # Whether or not to clip the anchor boxes to lie entirely within the image boundaries
variances = [
0.1, 0.1, 0.2, 0.2
] # The variances by which the encoded target coordinates are divided as in the original implementation
normalize_coords = True
K.clear_session() # Clear previous models from memory.
model_path = config['train']['saved_weights_name']
# 3: Instantiate an optimizer and the SSD loss function and compile the model.
# If you want to follow the original Caffe implementation, use the preset SGD
# optimizer, otherwise I'd recommend the commented-out Adam optimizer.
if config['model']['backend'] == 'ssd512':
aspect_ratios = [[1.0, 2.0, 0.5], [1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5, 3.0, 1.0 / 3.0], [1.0, 2.0, 0.5],
[1.0, 2.0, 0.5]]
steps = [
8, 16, 32, 64, 100, 200, 300
] # The space between two adjacent anchor box center points for each predictor layer.
offsets = [0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5]
scales = [0.07, 0.15, 0.3, 0.45, 0.6, 0.75, 0.9, 1.05]
elif config['model']['backend'] == 'ssd7':
#weights_path = 'VGG_ILSVRC_16_layers_fc_reduced.h5'
scales = [
0.08, 0.16, 0.32, 0.64, 0.96
] # An explicit list of anchor box scaling factors. If this is passed, it will override `min_scale` and `max_scale`.
aspect_ratios = [0.5, 1.0,
2.0] # The list of aspect ratios for the anchor boxes
two_boxes_for_ar1 = True # Whether or not you want to generate two anchor boxes for aspect ratio 1
steps = None # In case you'd like to set the step sizes for the anchor box grids manually; not recommended
offsets = None
if os.path.exists(model_path):
print("\nLoading pretrained weights.\n")
# We need to create an SSDLoss object in order to pass that to the model loader.
ssd_loss = SSDLoss(neg_pos_ratio=3, alpha=1.0)
K.clear_session() # Clear previous models from memory.
model = load_model(model_path,
custom_objects={
'AnchorBoxes': AnchorBoxes,
'L2Normalization': L2Normalization,
'compute_loss': ssd_loss.compute_loss
})
else:
####################################
# Build the Keras model.
###################################
if config['model']['backend'] == 'ssd300':
#weights_path = 'VGG_VOC0712Plus_SSD_300x300_ft_iter_160000.h5'
from models.keras_ssd300 import ssd_300 as ssd
model = ssd_300(image_size=(img_height, img_width, img_channels),
n_classes=n_classes,
mode='training',
l2_regularization=0.0005,
scales=scales,
aspect_ratios_per_layer=aspect_ratios,
two_boxes_for_ar1=two_boxes_for_ar1,
steps=steps,
offsets=offsets,
clip_boxes=clip_boxes,
variances=variances,
normalize_coords=normalize_coords,
subtract_mean=mean_color,
swap_channels=swap_channels)
elif config['model']['backend'] == 'ssd512':
#weights_path = 'VGG_VOC0712Plus_SSD_512x512_ft_iter_160000.h5'
from models.keras_ssd512 import ssd_512 as ssd
# 2: Load some weights into the model.
model = ssd(image_size=(img_height, img_width, img_channels),
n_classes=n_classes,
mode='training',
l2_regularization=0.0005,
scales=scales,
aspect_ratios_per_layer=aspect_ratios,
two_boxes_for_ar1=two_boxes_for_ar1,
steps=steps,
offsets=offsets,
clip_boxes=clip_boxes,
variances=variances,
normalize_coords=normalize_coords,
swap_channels=swap_channels)
elif config['model']['backend'] == 'ssd7':
#weights_path = 'VGG_ILSVRC_16_layers_fc_reduced.h5'
from models.keras_ssd7 import build_model as ssd
scales = [
0.08, 0.16, 0.32, 0.64, 0.96
] # An explicit list of anchor box scaling factors. If this is passed, it will override `min_scale` and `max_scale`.
aspect_ratios = [
0.5, 1.0, 2.0
] # The list of aspect ratios for the anchor boxes
two_boxes_for_ar1 = True # Whether or not you want to generate two anchor boxes for aspect ratio 1
steps = None # In case you'd like to set the step sizes for the anchor box grids manually; not recommended
offsets = None
model = ssd(image_size=(img_height, img_width, img_channels),
n_classes=n_classes,
mode='training',
l2_regularization=0.0005,
scales=scales,
aspect_ratios_global=aspect_ratios,
aspect_ratios_per_layer=None,
two_boxes_for_ar1=two_boxes_for_ar1,
steps=steps,
offsets=offsets,
clip_boxes=clip_boxes,
variances=variances,
normalize_coords=normalize_coords,
subtract_mean=None,
divide_by_stddev=None)
else:
print('Wrong Backend')
print('OK create model')
#sgd = SGD(lr=config['train']['learning_rate'], momentum=0.9, decay=0.0, nesterov=False)
# TODO: Set the path to the weights you want to load. only for ssd300 or ssd512
weights_path = 'VGG_ILSVRC_16_layers_fc_reduced.h5'
print("\nLoading pretrained weights VGG.\n")
model.load_weights(weights_path, by_name=True)
# 3: Instantiate an optimizer and the SSD loss function and compile the model.
# If you want to follow the original Caffe implementation, use the preset SGD
# optimizer, otherwise I'd recommend the commented-out Adam optimizer.
#adam = Adam(lr=0.001, beta_1=0.9, beta_2=0.999, epsilon=1e-08, decay=0.0)
#sgd = SGD(lr=0.001, momentum=0.9, decay=0.0, nesterov=False)
optimizer = Adam(lr=config['train']['learning_rate'],
beta_1=0.9,
beta_2=0.999,
epsilon=1e-08,
decay=0.0)
ssd_loss = SSDLoss(neg_pos_ratio=3, alpha=1.0)
model.compile(optimizer=optimizer, loss=ssd_loss.compute_loss)
model.summary()
#####################################################################
# Instantiate two `DataGenerator` objects: One for training, one for validation.
######################################################################
# Optional: If you have enough memory, consider loading the images into memory for the reasons explained above.
train_dataset = DataGenerator(load_images_into_memory=False,
hdf5_dataset_path=None)
val_dataset = DataGenerator(load_images_into_memory=False,
hdf5_dataset_path=None)
# 2: Parse the image and label lists for the training and validation datasets. This can take a while.
# The XML parser needs to now what object class names to look for and in which order to map them to integers.
classes = ['background'] + labels
train_dataset.parse_xml(
images_dirs=[config['train']['train_image_folder']],
image_set_filenames=[config['train']['train_image_set_filename']],
annotations_dirs=[config['train']['train_annot_folder']],
classes=classes,
include_classes='all',
exclude_truncated=False,
exclude_difficult=False,
ret=False)
val_dataset.parse_xml(
images_dirs=[config['valid']['valid_image_folder']],
image_set_filenames=[config['valid']['valid_image_set_filename']],
annotations_dirs=[config['valid']['valid_annot_folder']],
classes=classes,
include_classes='all',
exclude_truncated=False,
exclude_difficult=False,
ret=False)
#########################
# 3: Set the batch size.
#########################
batch_size = config['train'][
'batch_size'] # Change the batch size if you like, or if you run into GPU memory issues.
##########################
# 4: Set the image transformations for pre-processing and data augmentation options.
##########################
# For the training generator:
# For the validation generator:
convert_to_3_channels = ConvertTo3Channels()
resize = Resize(height=img_height, width=img_width)
######################################3
# 5: Instantiate an encoder that can encode ground truth labels into the format needed by the SSD loss function.
#########################################
# The encoder constructor needs the spatial dimensions of the model's predictor layers to create the anchor boxes.
if config['model']['backend'] == 'ssd512':
predictor_sizes = [
model.get_layer('conv4_3_norm_mbox_conf').output_shape[1:3],
model.get_layer('fc7_mbox_conf').output_shape[1:3],
model.get_layer('conv6_2_mbox_conf').output_shape[1:3],
model.get_layer('conv7_2_mbox_conf').output_shape[1:3],
model.get_layer('conv8_2_mbox_conf').output_shape[1:3],
model.get_layer('conv9_2_mbox_conf').output_shape[1:3],
model.get_layer('conv10_2_mbox_conf').output_shape[1:3]
]
ssd_input_encoder = SSDInputEncoder(
img_height=img_height,
img_width=img_width,
n_classes=n_classes,
predictor_sizes=predictor_sizes,
scales=scales,
aspect_ratios_per_layer=aspect_ratios,
two_boxes_for_ar1=two_boxes_for_ar1,
steps=steps,
offsets=offsets,
clip_boxes=clip_boxes,
variances=variances,
matching_type='multi',
pos_iou_threshold=0.5,
neg_iou_limit=0.5,
normalize_coords=normalize_coords)
elif config['model']['backend'] == 'ssd300':
predictor_sizes = [
model.get_layer('conv4_3_norm_mbox_conf').output_shape[1:3],
model.get_layer('fc7_mbox_conf').output_shape[1:3],
model.get_layer('conv6_2_mbox_conf').output_shape[1:3],
model.get_layer('conv7_2_mbox_conf').output_shape[1:3],
model.get_layer('conv8_2_mbox_conf').output_shape[1:3],
model.get_layer('conv9_2_mbox_conf').output_shape[1:3]
]
ssd_input_encoder = SSDInputEncoder(
img_height=img_height,
img_width=img_width,
n_classes=n_classes,
predictor_sizes=predictor_sizes,
scales=scales,
aspect_ratios_per_layer=aspect_ratios,
two_boxes_for_ar1=two_boxes_for_ar1,
steps=steps,
offsets=offsets,
clip_boxes=clip_boxes,
variances=variances,
matching_type='multi',
pos_iou_threshold=0.5,
neg_iou_limit=0.5,
normalize_coords=normalize_coords)
elif config['model']['backend'] == 'ssd7':
predictor_sizes = [
model.get_layer('classes4').output_shape[1:3],
model.get_layer('classes5').output_shape[1:3],
model.get_layer('classes6').output_shape[1:3],
model.get_layer('classes7').output_shape[1:3]
]
ssd_input_encoder = SSDInputEncoder(
img_height=img_height,
img_width=img_width,
n_classes=n_classes,
predictor_sizes=predictor_sizes,
scales=scales,
aspect_ratios_global=aspect_ratios,
two_boxes_for_ar1=two_boxes_for_ar1,
steps=steps,
offsets=offsets,
clip_boxes=clip_boxes,
variances=variances,
matching_type='multi',
pos_iou_threshold=0.5,
neg_iou_limit=0.3,
normalize_coords=normalize_coords)
#######################
# 6: Create the generator handles that will be passed to Keras' `fit_generator()` function.
#######################
train_generator = train_dataset.generate(
batch_size=batch_size,
shuffle=True,
transformations=[
SSDDataAugmentation(img_height=img_height, img_width=img_width)
],
label_encoder=ssd_input_encoder,
returns={'processed_images', 'encoded_labels'},
keep_images_without_gt=False)
val_generator = val_dataset.generate(
batch_size=batch_size,
shuffle=False,
transformations=[convert_to_3_channels, resize],
label_encoder=ssd_input_encoder,
returns={'processed_images', 'encoded_labels'},
keep_images_without_gt=False)
# Get the number of samples in the training and validations datasets.
train_dataset_size = train_dataset.get_dataset_size()
val_dataset_size = val_dataset.get_dataset_size()
print("Number of images in the training dataset:\t{:>6}".format(
train_dataset_size))
print("Number of images in the validation dataset:\t{:>6}".format(
val_dataset_size))
##########################
# Define model callbacks.
#########################
# TODO: Set the filepath under which you want to save the model.
model_checkpoint = ModelCheckpoint(
filepath=config['train']['saved_weights_name'],
monitor='val_loss',
verbose=1,
save_best_only=True,
save_weights_only=False,
mode='auto',
period=1)
#model_checkpoint.best =
csv_logger = CSVLogger(filename='log.csv', separator=',', append=True)
learning_rate_scheduler = LearningRateScheduler(schedule=lr_schedule,
verbose=1)
terminate_on_nan = TerminateOnNaN()
callbacks = [
model_checkpoint, csv_logger, learning_rate_scheduler, terminate_on_nan
]
#print(model.summary())
batch_images, batch_labels = next(train_generator)
# i = 0 # Which batch item to look at
#
# print("Image:", batch_filenames[i])
# print()
# print("Ground truth boxes:\n")
# print(batch_labels[i])
initial_epoch = 0
final_epoch = config['train']['nb_epochs']
#final_epoch = 20
steps_per_epoch = 500
history = model.fit_generator(generator=train_generator,
steps_per_epoch=steps_per_epoch,
epochs=final_epoch,
callbacks=callbacks,
validation_data=val_generator,
validation_steps=ceil(val_dataset_size /
batch_size),
initial_epoch=initial_epoch,
verbose=1 if config['train']['debug'] else 2)
steps_per_epoch = 1000
# checkpoint_path = './checkpoints/final_ssd.h5'
checkpoint_path = './checkpoints/final_ssd'
os.makedirs(os.path.dirname(checkpoint_path), exist_ok=True)
config = SSD300Config(pos_iou_threshold=0.5, neg_iou_limit=0.3)
model, preprocess_input, predictor_sizes = ssd_300(
weights='imagenet',
image_size=config.input_shape,
n_classes=num_classes,
mode='training',
l2_regularization=0.0005,
scales=config.scales,
aspect_ratios_per_layer=config.aspect_ratios,
two_boxes_for_ar1=config.two_boxes_for_ar1,
steps=config.strides,
offsets=config.offsets,
clip_boxes=config.clip_boxes,
variances=config.variances,
normalize_coords=config.normalize_coords,
return_predictor_sizes=True)
parser = Tfrpaser(config=config,
predictor_sizes=predictor_sizes,
num_classes=num_classes,
batch_size=batch_size,
preprocess_input=preprocess_input)
dataset = parser.parse_tfrecords(
confidence_threshold = 0.7
K.clear_session() # Clear previous models from memory.
model = ssd_300( image_size=(img_height, img_width, 3),
n_classes=20,
mode='inference',
l2_regularization=0.0005,
scales=[0.1, 0.2, 0.37, 0.54, 0.71, 0.88, 1.05], # The scales for MS COCO are [0.07, 0.15, 0.33, 0.51, 0.69, 0.87, 1.05]
aspect_ratios_per_layer=[[1.0, 2.0, 0.5],
[1.0, 2.0, 0.5, 3.0, 1.0/3.0],
[1.0, 2.0, 0.5, 3.0, 1.0/3.0],
[1.0, 2.0, 0.5, 3.0, 1.0/3.0],
[1.0, 2.0, 0.5],
[1.0, 2.0, 0.5]],
two_boxes_for_ar1=True,
steps=None,
offsets=[0.5, 0.5, 0.5, 0.5, 0.5, 0.5],
clip_boxes=False,
variances=[0.1, 0.1, 0.2, 0.2],
normalize_coords=True,
subtract_mean=[123, 117, 104],
swap_channels=[2, 1, 0],
confidence_thresh=confidence_threshold,
iou_threshold=0.45,
top_k=200,
nms_max_output_size=400)
# 2: Load the trained weights into the model.
# TODO: Set the path of the trained weights.
def perimeter_detection(weights_path, video_path, result_path, threshold,
perimeter_a, perimeter_b):
img_height = 300
img_width = 300
K.clear_session() # Clear previous models from memory.
model = ssd_300(
image_size=(img_height, img_width, 3),
n_classes=20,
mode='inference',
l2_regularization=0.0005,
scales=[0.1, 0.2, 0.37, 0.54, 0.71, 0.88, 1.05],
# The scales for MS COCO are [0.07, 0.15, 0.33, 0.51, 0.69, 0.87, 1.05]
aspect_ratios_per_layer=[[1.0, 2.0, 0.5],
[1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5], [1.0, 2.0, 0.5]],
two_boxes_for_ar1=True,
steps=[8, 16, 32, 64, 100, 300],
offsets=[0.5, 0.5, 0.5, 0.5, 0.5, 0.5],
clip_boxes=False,
variances=[0.1, 0.1, 0.2, 0.2],
normalize_coords=True,
subtract_mean=[123, 117, 104],
swap_channels=[2, 1, 0],
confidence_thresh=0.1,
iou_threshold=0.45,
top_k=200,
nms_max_output_size=400)
model.load_weights(weights_path, by_name=True)
adam = Adam(lr=0.001, beta_1=0.9, beta_2=0.999, epsilon=1e-08, decay=0.0)
ssd_loss = SSDLoss(neg_pos_ratio=3, alpha=1.0)
model.compile(optimizer=adam, loss=ssd_loss.compute_loss)
original_images = []
process_images = []
cap = cv2.VideoCapture(video_path)
while (cap.isOpened()):
ret, frame = cap.read()
if ret == True:
transposed_frame = cv2.transpose(frame)
transposed_frame = cv2.flip(transposed_frame, 1)
original_images.append(transposed_frame)
k = cv2.waitKey(20)
if k & 0xff == ord('q'):
break
else:
break
cap.release()
cv2.destroyAllWindows()
for k in range(8250):
sub_image = cv2.imread('perimeter_detection/sub_images/sub_' + str(k) +
'.jpg')
resize_image = cv2.resize(sub_image, (img_height, img_width))
process_images.append(resize_image)
print(len(original_images))
process_images = np.array(process_images)
# start_time = time.time()
y_pred = model.predict(process_images, batch_size=8)
# end_time = time.time()
# print(end_time - start_time)
confidence_threshold = 0.1
y_pred_thresh = [
y_pred[k][y_pred[k, :, 1] > confidence_threshold]
for k in range(y_pred.shape[0])
]
np.set_printoptions(precision=2, suppress=True, linewidth=90)
print(' class conf xmin ymin xmax ymax')
fourcc = cv2.VideoWriter_fourcc(*'MJPG')
result_video = cv2.VideoWriter(
'result1.avi', fourcc, 25.0,
(original_images[0].shape[0], original_images[0].shape[1]))
vector_a = np.array(
[perimeter_a[0] - perimeter_b[0], perimeter_a[1] - perimeter_b[1]])
distance_a = np.linalg.norm(vector_a)
for k in range(len(y_pred_thresh)):
print(k)
print(y_pred_thresh[k])
classes = [
'background', 'aeroplane', 'bicycle', 'bird', 'boat', 'bottle',
'bus', 'car', 'cat', 'chair', 'cow', 'diningtable', 'dog', 'horse',
'motorbike', 'person', 'pottedplant', 'sheep', 'sofa', 'train',
'tvmonitor'
]
for box in y_pred_thresh[k]:
if box[0] != 15:
continue
xmin = box[2] * 720 / 300
ymin = box[3] * 400 / 300 + 600
xmax = box[4] * 720 / 300
ymax = box[5] * 400 / 300 + 600
if xmin < 400:
continue
vector_b = np.array([xmin - perimeter_a[0], ymin - perimeter_a[1]])
vector_cross = np.cross(vector_a, vector_b)
distance = np.linalg.norm(vector_cross / distance_a)
if vector_cross >= 0 or distance < threshold:
cv2.rectangle(original_images[k], (int(xmin), int(ymin)),
(int(xmax), int(ymax)), (0, 0, 255), 2)
continue
vector_b = np.array([xmin - perimeter_a[0], ymax - perimeter_a[1]])
vector_cross = np.cross(vector_a, vector_b)
distance = np.linalg.norm(vector_cross / distance_a)
if vector_cross >= 0 or distance < threshold:
cv2.rectangle(original_images[k], (int(xmin), int(ymin)),
(int(xmax), int(ymax)), (0, 0, 255), 2)
continue
vector_b = np.array([xmax - perimeter_a[0], ymin - perimeter_a[1]])
vector_cross = np.cross(vector_a, vector_b)
distance = np.linalg.norm(vector_cross / distance_a)
if vector_cross >= 0 or distance < threshold:
cv2.rectangle(original_images[k], (int(xmin), int(ymin)),
(int(xmax), int(ymax)), (0, 0, 255), 2)
continue
vector_b = np.array([xmax - perimeter_a[0], ymax - perimeter_a[1]])
vector_cross = np.cross(vector_a, vector_b)
distance = np.linalg.norm(vector_cross / distance_a)
if vector_cross >= 0 or distance < threshold:
cv2.rectangle(original_images[k], (int(xmin), int(ymin)),
(int(xmax), int(ymax)), (0, 0, 255), 2)
continue
cv2.rectangle(original_images[k], (int(xmin), int(ymin)),
(int(xmax), int(ymax)), (0, 255, 0), 2)
cv2.line(original_images[k],
(int(perimeter_a[0]), int(perimeter_a[1])),
(int(perimeter_b[0]), int(perimeter_b[1])), (0, 255, 255), 2)
cv2.imwrite(result_path + '/detection_' + str(k) + '.jpg',
original_images[k])
result_image = original_images[k]
transposed_image = cv2.transpose(result_image)
transposed_image = cv2.flip(transposed_image, 0)
result_video.write(transposed_image)
result_video.release()
cv2.destroyAllWindows()
'''
def init_model(model_file=None):
K.clear_session()
global img_height
global img_width
if not model_file:
img_height = 300
img_height = 300
model = ssd_300(
image_size=(img_height, img_width, 3),
n_classes=20,
mode='inference',
l2_regularization=0.0005,
scales=[
0.1, 0.2, 0.37, 0.54, 0.71, 0.88, 1.05
], # The scales for MS COCO are [0.07, 0.15, 0.33, 0.51, 0.69, 0.87, 1.05]
aspect_ratios_per_layer=[[1.0, 2.0, 0.5],
[1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5], [1.0, 2.0, 0.5]],
two_boxes_for_ar1=True,
steps=[8, 16, 32, 64, 100, 300],
offsets=[0.5, 0.5, 0.5, 0.5, 0.5, 0.5],
clip_boxes=False,
variances=[0.1, 0.1, 0.2, 0.2],
normalize_coords=True,
subtract_mean=[123, 117, 104],
swap_channels=[2, 1, 0],
confidence_thresh=0.5,
iou_threshold=0.45,
top_k=200,
nms_max_output_size=400)
# TODO: Set the path of the trained weights.
weights_path = './VGG_VOC0712Plus_SSD_300x300_ft_iter_160000.h5'
model.load_weights(weights_path, by_name=True)
adam = Adam(lr=0.001,
beta_1=0.9,
beta_2=0.999,
epsilon=1e-08,
decay=0.0)
ssd_loss = SSDLoss(neg_pos_ratio=3, alpha=1.0)
model.compile(optimizer=adam, loss=ssd_loss.compute_loss)
else:
img_height = 224
img_width = 224
ssd_loss = SSDLoss(neg_pos_ratio=3, alpha=1.0)
model = keras.models.load_model(model_file,
custom_objects={
'AnchorBoxes': AnchorBoxes,
'L2Normalization': L2Normalization,
'DecodeDetections':
DecodeDetections,
'compute_loss':
ssd_loss.compute_loss
})
print(model.summary())
return model
0.5, 0.5, 0.5, 0.5, 0.5, 0.5
] # The offsets of the first anchor box center points from the top and left borders of the image as a fraction of the step size for each predictor layer.
clip_boxes = False # Whether or not to clip the anchor boxes to lie entirely within the image boundaries
variances = [
0.1, 0.1, 0.2, 0.2
] # The variances by which the encoded target coordinates are divided as in the original implementation
normalize_coords = True
K.clear_session() # Clear previous models from memory.
model = ssd_300(image_size=(img_height, img_width, img_channels),
n_classes=n_classes,
mode='inference',
l2_regularization=0.0005,
scales=scales,
aspect_ratios_per_layer=aspect_ratios,
two_boxes_for_ar1=two_boxes_for_ar1,
steps=steps,
offsets=offsets,
clip_boxes=clip_boxes,
variances=variances,
normalize_coords=normalize_coords,
subtract_mean=mean_color,
swap_channels=swap_channels)
weights_path = './trained_model/ssd300_epoch-1177_loss-5.6914_val_loss-5.5798.h5'
model.load_weights(weights_path, by_name=True)
adam = Adam(lr=0.001, beta_1=0.9, beta_2=0.999, epsilon=1e-08, decay=0.0)
ssd_loss = SSDLoss(neg_pos_ratio=3, alpha=1.0)
model.compile(optimizer=adam, loss=ssd_loss.compute_loss)
orig_images = [] # Store the images here.
input_images = [] # Store resized versions of the images here.
def main():
create_new_model = True if args.model_name == 'default' else False
if create_new_model:
K.clear_session() # Clear previous models from memory.
model = ssd_300(image_size=(Config.img_height, Config.img_width,
Config.img_channels),
n_classes=Config.n_classes,
mode='training',
l2_regularization=Config.l2_regularization,
scales=Config.scales,
aspect_ratios_per_layer=Config.aspect_ratios,
two_boxes_for_ar1=Config.two_boxes_for_ar1,
steps=Config.steps,
offsets=Config.offsets,
clip_boxes=Config.clip_boxes,
variances=Config.variances,
normalize_coords=Config.normalize_coords,
subtract_mean=Config.mean_color,
swap_channels=Config.swap_channels)
adam = Adam(lr=0.001,
beta_1=0.9,
beta_2=0.999,
epsilon=1e-08,
decay=0.0)
ssd_loss = SSDLoss(neg_pos_ratio=3, alpha=1.0)
model.compile(optimizer=adam, loss=ssd_loss.compute_loss)
else:
model_path = "weights/" + args.model_name + ".h5"
# We need to create an SSDLoss object in order to pass that to the model loader.
ssd_loss = SSDLoss(neg_pos_ratio=3, alpha=1.0)
K.clear_session() # Clear previous models from memory.
model = load_model(model_path,
custom_objects={
'AnchorBoxes': AnchorBoxes,
'L2Normalization': L2Normalization,
'compute_loss': ssd_loss.compute_loss
})
# Load the data
train_dataset = DataGenerator(load_images_into_memory=True,
hdf5_dataset_path=os.getcwd() + "/data/" +
args.dataset + '/polyp_train.h5')
val_dataset = DataGenerator(load_images_into_memory=True,
hdf5_dataset_path=os.getcwd() + "/data/" +
args.dataset + '/polyp_val.h5')
train_dataset_size = train_dataset.get_dataset_size()
val_dataset_size = val_dataset.get_dataset_size()
print("Number of images in the training dataset:\t{:>6}".format(
train_dataset_size))
print("Number of images in the validation dataset:\t{:>6}".format(
val_dataset_size))
batch_size = args.batch_size
# For the training generator:
ssd_data_augmentation = SSDDataAugmentation(img_height=Config.img_height,
img_width=Config.img_width,
background=Config.mean_color)
# For the validation generator:
convert_to_3_channels = ConvertTo3Channels()
resize = Resize(height=Config.img_height, width=Config.img_width)
# 5: Instantiate an encoder that can encode ground truth labels into the format needed by the SSD loss function.
# The encoder constructor needs the spatial dimensions of the model's predictor layers to create the anchor boxes.
predictor_sizes = [
model.get_layer('conv4_3_norm_mbox_conf').output_shape[1:3],
model.get_layer('fc7_mbox_conf').output_shape[1:3],
model.get_layer('conv6_2_mbox_conf').output_shape[1:3],
model.get_layer('conv7_2_mbox_conf').output_shape[1:3],
model.get_layer('conv8_2_mbox_conf').output_shape[1:3],
model.get_layer('conv9_2_mbox_conf').output_shape[1:3]
]
ssd_input_encoder = SSDInputEncoder(
img_height=Config.img_height,
img_width=Config.img_width,
n_classes=Config.n_classes,
predictor_sizes=predictor_sizes,
scales=Config.scales,
aspect_ratios_per_layer=Config.aspect_ratios,
two_boxes_for_ar1=Config.two_boxes_for_ar1,
steps=Config.steps,
offsets=Config.offsets,
clip_boxes=Config.clip_boxes,
variances=Config.variances,
matching_type='multi',
pos_iou_threshold=0.5,
neg_iou_limit=0.5,
normalize_coords=Config.normalize_coords)
# 6: Create the generator handles that will be passed to Keras' `fit_generator()` function.
train_generator = train_dataset.generate(
batch_size=batch_size,
shuffle=True,
transformations=[ssd_data_augmentation],
label_encoder=ssd_input_encoder,
returns={'processed_images', 'encoded_labels'},
keep_images_without_gt=False)
val_generator = val_dataset.generate(
batch_size=batch_size,
shuffle=False,
transformations=[convert_to_3_channels, resize],
label_encoder=ssd_input_encoder,
returns={'processed_images', 'encoded_labels'},
keep_images_without_gt=False)
model_checkpoint = ModelCheckpoint(
filepath=os.getcwd() +
'/weights/ssd300_epoch-{epoch:02d}_loss-{loss:.4f}_val_loss-{val_loss:.4f}.h5',
monitor='val_loss',
verbose=1,
save_best_only=True,
save_weights_only=False,
mode='auto',
period=5)
csv_logger = CSVLogger(filename='ssd300_training_log.csv',
separator=',',
append=True)
learning_rate_scheduler = LearningRateScheduler(schedule=lr_schedule)
terminate_on_nan = TerminateOnNaN()
tf_log = keras.callbacks.TensorBoard(log_dir=TF_LOG_PATH + args.tf_logs,
histogram_freq=0,
batch_size=batch_size,
write_graph=True,
write_grads=False,
write_images=False)
callbacks = [
model_checkpoint, csv_logger, learning_rate_scheduler,
terminate_on_nan, tf_log
]
# If you're resuming a previous training, set `initial_epoch` and `final_epoch` accordingly.
initial_epoch = 0
final_epoch = args.final_epoch
steps_per_epoch = 500
# Train/Fit the model
if args.predict_mode == 'train':
history = model.fit_generator(generator=train_generator,
steps_per_epoch=steps_per_epoch,
epochs=final_epoch,
callbacks=callbacks,
validation_data=val_generator,
validation_steps=ceil(val_dataset_size /
batch_size),
initial_epoch=initial_epoch)
# Prediction Output
predict_generator = val_dataset.generate(
batch_size=1,
shuffle=True,
transformations=[convert_to_3_channels, resize],
label_encoder=None,
returns={
'processed_images', 'filenames', 'inverse_transform',
'original_images', 'original_labels'
},
keep_images_without_gt=False)
i = 0
for val in range(val_dataset_size):
batch_images, batch_filenames, batch_inverse_transforms, batch_original_images, batch_original_labels = next(
predict_generator)
y_pred = model.predict(batch_images)
y_pred_decoded = decode_detections(
y_pred,
confidence_thresh=0.5,
iou_threshold=0.4,
top_k=200,
normalize_coords=Config.normalize_coords,
img_height=Config.img_height,
img_width=Config.img_width)
# 5: Convert the predictions for the original image.
y_pred_decoded_inv = apply_inverse_transforms(
y_pred_decoded, batch_inverse_transforms)
np.set_printoptions(precision=2, suppress=True, linewidth=90)
print("Predicted boxes:\n")
print(' class conf xmin ymin xmax ymax')
print(y_pred_decoded_inv[i])
plt.figure(figsize=(20, 12))
plt.imshow(batch_images[i])
current_axis = plt.gca()
colors = plt.cm.hsv(
np.linspace(0, 1, Config.n_classes +
1)).tolist() # Set the colors for the bounding boxes
classes = [
'background', 'polyps'
] # Just so we can print class names onto the image instead of IDs
for box in batch_original_labels[i]:
xmin = box[1]
ymin = box[2]
xmax = box[3]
ymax = box[4]
label = '{}'.format(classes[int(box[0])])
current_axis.add_patch(
plt.Rectangle((xmin, ymin),
xmax - xmin,
ymax - ymin,
color='green',
fill=False,
linewidth=2))
current_axis.text(xmin,
ymin,
label,
size='x-large',
color='white',
bbox={
'facecolor': 'green',
'alpha': 1.0
})
for box in y_pred_decoded_inv[i]:
xmin = box[2]
ymin = box[3]
xmax = box[4]
ymax = box[5]
color = colors[int(box[0])]
label = '{}: {:.2f}'.format(classes[int(box[0])], box[1])
current_axis.add_patch(
plt.Rectangle((xmin, ymin),
xmax - xmin,
ymax - ymin,
color=color,
fill=False,
linewidth=2))
current_axis.text(xmin,
ymin,
label,
size='x-large',
color='white',
bbox={
'facecolor': color,
'alpha': 1.0
})
image = plt.gcf()
plt.draw()
image.savefig(os.getcwd() + "/val_ssd300/val_" + str(val) + ".png",
dpi=100)
def __init__(self, model_name, n_classes=1, mode='inference'):
self.model_name = model_name
self.n_classes = n_classes
self.mode = mode
if self.model_name == 'ssd_7':
self.image_size = (300, 300, 3)
self.intensity_mean = 127.5
self.intensity_range = 127.5
self.scales = [0.08, 0.16, 0.32, 0.64, 0.96]
self.aspect_ratios_per_layer = None
self.two_boxes_for_ar1 = True
self.steps = None
self.offsets = None
self.clip_boxes = False
self.variances = [1.0, 1.0, 1.0, 1.0]
self.normalize_coords = True
self.model = build_model(
image_size=self.image_size,
n_classes=self.n_classes,
mode=self.mode,
l2_regularization=0.0005,
scales=self.scales,
aspect_ratios_global=[0.5, 1.0, 2.0],
aspect_ratios_per_layer=self.aspect_ratios_per_layer,
two_boxes_for_ar1=self.two_boxes_for_ar1,
steps=self.steps,
offsets=self.offsets,
clip_boxes=self.clip_boxes,
variances=self.variances,
normalize_coords=self.normalize_coords,
subtract_mean=self.intensity_mean,
divide_by_stddev=self.intensity_range)
elif self.model_name == 'ssd_300':
self.image_size = (300, 300, 3)
self.mean_color = [123, 117, 104]
self.swap_channels = [2, 1, 0]
self.scales = [0.1, 0.2, 0.37, 0.54, 0.71, 0.88, 1.05]
self.aspect_ratios_per_layer = [[1.0, 2.0, 0.5],
[1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5], [1.0, 2.0, 0.5]]
self.two_boxes_for_ar1 = True
self.steps = [8, 16, 32, 64, 100, 300]
self.offsets = [0.5, 0.5, 0.5, 0.5, 0.5, 0.5]
self.clip_boxes = False
self.variances = [0.1, 0.1, 0.2, 0.2]
self.normalize_coords = True
self.model = ssd_300(
image_size=self.image_size,
n_classes=self.n_classes,
mode=self.mode,
l2_regularization=0.0005,
scales=self.scales,
aspect_ratios_per_layer=self.aspect_ratios_per_layer,
two_boxes_for_ar1=self.two_boxes_for_ar1,
steps=self.steps,
offsets=self.offsets,
clip_boxes=self.clip_boxes,
variances=self.variances,
normalize_coords=self.normalize_coords,
subtract_mean=self.mean_color,
swap_channels=self.swap_channels)
elif self.model_name == 'ssd_512':
self.image_size = (512, 512, 3)
self.mean_color = [123, 117, 104]
self.swap_channels = [2, 1, 0]
self.scales = [0.07, 0.15, 0.3, 0.45, 0.6, 0.75, 0.9, 1.05]
self.aspect_ratios_per_layer = [[1.0, 2.0, 0.5],
[1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5], [1.0, 2.0, 0.5]]
self.two_boxes_for_ar1 = True
self.steps = [8, 16, 32, 64, 128, 256, 512]
self.offsets = [0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5]
self.clip_boxes = False
self.variances = [0.1, 0.1, 0.2, 0.2]
self.normalize_coords = True
self.model = ssd_512(
image_size=self.image_size,
n_classes=self.n_classes,
mode=self.mode,
l2_regularization=0.0005,
scales=self.scales,
aspect_ratios_per_layer=self.aspect_ratios_per_layer,
two_boxes_for_ar1=self.two_boxes_for_ar1,
steps=self.steps,
offsets=self.offsets,
clip_boxes=self.clip_boxes,
variances=self.variances,
normalize_coords=self.normalize_coords,
subtract_mean=self.mean_color,
swap_channels=self.swap_channels)
else:
print('creating ssd_7')
self.model_name = 'ssd_7'
self.image_size = (300, 300, 3)
self.intensity_mean = 127.5
self.intensity_range = 127.5
self.scales = [0.08, 0.16, 0.32, 0.64, 0.96]
self.aspect_ratios_per_layer = None
self.two_boxes_for_ar1 = True
self.steps = None
self.offsets = None
self.clip_boxes = False
self.variances = [1.0, 1.0, 1.0, 1.0]
self.normalize_coords = True
self.model = build_model(
image_size=self.image_size,
n_classes=self.n_classes,
mode=self.mode,
l2_regularization=0.0005,
scales=self.scales,
aspect_ratios_global=[0.5, 1.0, 2.0],
aspect_ratios_per_layer=self.aspect_ratios_per_layer,
two_boxes_for_ar1=self.two_boxes_for_ar1,
steps=self.steps,
offsets=self.offsets,
clip_boxes=self.clip_boxes,
variances=self.variances,
normalize_coords=self.normalize_coords,
subtract_mean=self.intensity_mean,
divide_by_stddev=self.intensity_range)
def load_weight(self):
self.weights_path = 'ssd300_pascal_07+12_epoch-08_loss-1.9471_val_loss-1.9156.h5'
adam = Adam(lr=0.001,
beta_1=0.9,
beta_2=0.999,
epsilon=1e-08,
decay=0.0)
ssd_loss = SSDLoss(neg_pos_ratio=3, alpha=1.0)
K.clear_session() # Clear previous models from memory.
#limit memory: https://www.tensorflow.org/guide/gpu#limiting_gpu_memory_growth
# TF 2.x options works for TF 1.15.5
gpus = tf.config.experimental.list_physical_devices('GPU')
if gpus:
try:
# option1: fixed size
tf.config.experimental.set_virtual_device_configuration(
gpus[self.gpu_no], [
tf.config.experimental.VirtualDeviceConfiguration(
memory_limit=1024)
])
# option2: dynamic
#for gpu in gpus:
# tf.config.experimental.set_memory_growth(gpu, True)
# choose gpu device
tf.config.experimental.set_visible_devices(
gpus[self.gpu_no], 'GPU')
except RuntimeError as e:
print(e)
self.session = tf.Session()
self.graph = tf.get_default_graph()
with self.graph.as_default():
with self.session.as_default():
self.model = ssd_300(
image_size=(self.img_height, self.img_width, 3),
n_classes=2,
mode='inference',
l2_regularization=0.0005,
scales=[
0.1, 0.2, 0.37, 0.54, 0.71, 0.88, 1.05
], # The scales for MS COCO are [0.07, 0.15, 0.33, 0.51, 0.69, 0.87, 1.05]
aspect_ratios_per_layer=[[1.0, 2.0, 0.5],
[1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5, 3.0, 1.0 / 3.0],
[1.0, 2.0, 0.5], [1.0, 2.0, 0.5]],
two_boxes_for_ar1=True,
steps=[8, 16, 32, 64, 100, 300],
offsets=[0.5, 0.5, 0.5, 0.5, 0.5, 0.5],
clip_boxes=False,
variances=[0.1, 0.1, 0.2, 0.2],
normalize_coords=True,
subtract_mean=[123, 117, 104],
swap_channels=[2, 1, 0],
confidence_thresh=0.5,
iou_threshold=0.45,
top_k=200,
nms_max_output_size=400)
self.model.load_weights(self.weights_path, by_name=True)
self.model.compile(optimizer=adam, loss=ssd_loss.compute_loss)
0.1, 0.1, 0.2, 0.2
] # The variances by which the encoded target coordinates are divided as in the original implementation
normalize_coords = True
# 1: Build the Keras model.
K.clear_session() # Clear previous models from memory.
model, predictor_sizes = ssd_300(image_size=(img_height, img_width,
img_channels),
n_classes=n_classes,
mode='training',
l2_regularization=0.0005,
scales=scales,
aspect_ratios_per_layer=aspect_ratios,
two_boxes_for_ar1=two_boxes_for_ar1,
steps=steps,
offsets=offsets,
clip_boxes=clip_boxes,
variances=variances,
normalize_coords=normalize_coords,
subtract_mean=mean_color,
confidence_thresh=0.5,
iou_threshold=0.45)
# 3: Instantiate an optimizer and the SSD loss function and compile the model.
# If you want to follow the original Caffe implementation, use the preset SGD
# optimizer, otherwise I'd recommend the commented-out Adam optimizer.
print(model.summary())
weights_path = 'VGG_ILSVRC_16_layers_fc_reduced.h5'
model.load_weights(weights_path, by_name=True)
def model_detection():
img_height = 300 # Height of the input images
img_width = 300 # Width of the input images
img_channels = 3 # Number of color channels of the input images
subtract_mean = [123, 117,
104] # The per-channel mean of the images in the dataset
swap_channels = [
2, 1, 0
] # The color channel order in the original SSD is BGR, so we should set this to `True`, but weirdly the results are better without swapping.
# TODO: Set the number of classes.
n_classes = 8 # Number of positive classes, e.g. 20 for Pascal VOC, 80 for MS COCO
scales = [
0.07, 0.15, 0.33, 0.51, 0.69, 0.87, 1.05
] # The anchor box scaling factors used in the original SSD300 for the MS COCO datasets.
# scales = [0.1, 0.2, 0.37, 0.54, 0.71, 0.88, 1.05] # The anchor box scaling factors used in the original SSD300 for the Pascal VOC datasets.
aspect_ratios = [
[1.0,
2.0, 0.5], [1.0, 2.0, 0.5, 3.0,
1.0 / 3.0],
[1.0, 2.0, 0.5,
3.0, 1.0 / 3.0], [1.0, 2.0, 0.5, 3.0, 1.0 / 3.0
], [1.0, 2.0, 0.5
], [1.0, 2.0, 0.5]
] # The anchor box aspect ratios used in the original SSD300; the order matters
two_boxes_for_ar1 = True
steps = [
8, 16, 32, 64, 100, 300
] # The space between two adjacent anchor box center points for each predictor layer.
offsets = [
0.5, 0.5, 0.5, 0.5, 0.5, 0.5
] # The offsets of the first anchor box center points from the top and left borders of the image as a fraction of the step size for each predictor layer.
clip_boxes = False # Whether or not you want to limit the anchor boxes to lie entirely within the image boundaries
variances = [
0.1, 0.1, 0.2, 0.2
] # The variances by which the encoded target coordinates are scaled as in the original implementation
normalize_coords = True
weights_path = 'C:\\Users\\lamin\\Desktop\\PFE\\traffic_objetct_detection\\weights\\VGG_coco_SSD_300x300_iter_400000_subsampled_8_classes.h5'
model = ssd_300(image_size=(img_height, img_width, img_channels),
n_classes=n_classes,
mode='inference',
l2_regularization=0.0005,
scales=scales,
aspect_ratios_per_layer=aspect_ratios,
two_boxes_for_ar1=two_boxes_for_ar1,
steps=steps,
offsets=offsets,
clip_boxes=clip_boxes,
variances=variances,
normalize_coords=normalize_coords,
subtract_mean=subtract_mean,
divide_by_stddev=None,
swap_channels=swap_channels,
confidence_thresh=0.5,
iou_threshold=0.45,
top_k=200,
nms_max_output_size=400,
return_predictor_sizes=False)
print("Model built.")
# 2: Load the sub-sampled weights into the model.
# Load the weights that we've just created via sub-sampling.
model.load_weights(weights_path, by_name=True)
print("Weights file loaded:", weights_path)
return model
