def _load_pascal3d_voxel_exemplar_annotation(self, index):
"""
Load image and bounding boxes info from txt file in the pascal subcategory exemplar format.
"""
if self._image_set == 'val':
return self._load_pascal_annotation(index)
filename = os.path.join(self._pascal3d_path, cfg.SUBCLS_NAME,
index + '.txt')
assert os.path.exists(filename), \
'Path does not exist: {}'.format(filename)
# the annotation file contains flipped objects
lines = []
lines_flipped = []
with open(filename) as f:
for line in f:
words = line.split()
subcls = int(words[1])
is_flip = int(words[2])
if subcls != -1:
if is_flip == 0:
lines.append(line)
else:
lines_flipped.append(line)
num_objs = len(lines)
# store information of flipped objects
assert (num_objs == len(lines_flipped)
), 'The number of flipped objects is not the same!'
gt_subclasses_flipped = np.zeros((num_objs), dtype=np.int32)
for ix, line in enumerate(lines_flipped):
words = line.split()
subcls = int(words[1])
gt_subclasses_flipped[ix] = subcls
boxes = np.zeros((num_objs, 4), dtype=np.float32)
gt_classes = np.zeros((num_objs), dtype=np.int32)
gt_subclasses = np.zeros((num_objs), dtype=np.int32)
overlaps = np.zeros((num_objs, self.num_classes), dtype=np.float32)
subindexes = np.zeros((num_objs, self.num_classes), dtype=np.int32)
subindexes_flipped = np.zeros((num_objs, self.num_classes),
dtype=np.int32)
for ix, line in enumerate(lines):
words = line.split()
cls = self._class_to_ind[words[0]]
subcls = int(words[1])
# Make pixel indexes 0-based
boxes[ix, :] = [float(n) - 1 for n in words[3:7]]
gt_classes[ix] = cls
gt_subclasses[ix] = subcls
overlaps[ix, cls] = 1.0
subindexes[ix, cls] = subcls
subindexes_flipped[ix, cls] = gt_subclasses_flipped[ix]
overlaps = scipy.sparse.csr_matrix(overlaps)
subindexes = scipy.sparse.csr_matrix(subindexes)
subindexes_flipped = scipy.sparse.csr_matrix(subindexes_flipped)
if cfg.IS_RPN:
if cfg.IS_MULTISCALE:
# compute overlaps between grid boxes and gt boxes in multi-scales
# rescale the gt boxes
boxes_all = np.zeros((0, 4), dtype=np.float32)
for scale in cfg.TRAIN.SCALES:
boxes_all = np.vstack((boxes_all, boxes * scale))
gt_classes_all = np.tile(gt_classes, len(cfg.TRAIN.SCALES))
# compute grid boxes
s = PIL.Image.open(self.image_path_from_index(index)).size
image_height = s[1]
image_width = s[0]
boxes_grid, _, _ = get_boxes_grid(image_height, image_width)
# compute overlap
overlaps_grid = bbox_overlaps(boxes_grid.astype(np.float),
boxes_all.astype(np.float))
# check how many gt boxes are covered by grids
if num_objs != 0:
index = np.tile(range(num_objs), len(cfg.TRAIN.SCALES))
max_overlaps = overlaps_grid.max(axis=0)
fg_inds = []
for k in xrange(1, self.num_classes):
fg_inds.extend(
np.where((gt_classes_all == k) & (
max_overlaps >= cfg.TRAIN.FG_THRESH[k - 1]))
[0])
index_covered = np.unique(index[fg_inds])
for i in xrange(self.num_classes):
self._num_boxes_all[i] += len(
np.where(gt_classes == i)[0])
self._num_boxes_covered[i] += len(
np.where(gt_classes[index_covered] == i)[0])
else:
assert len(cfg.TRAIN.SCALES_BASE) == 1
scale = cfg.TRAIN.SCALES_BASE[0]
feat_stride = 16
# faster rcnn region proposal
base_size = 16
ratios = [3.0, 2.0, 1.5, 1.0, 0.75, 0.5, 0.25]
scales = 2**np.arange(1, 6, 0.5)
anchors = generate_anchors(base_size, ratios, scales)
num_anchors = anchors.shape[0]
# image size
s = PIL.Image.open(self.image_path_from_index(index)).size
image_height = s[1]
image_width = s[0]
# height and width of the heatmap
height = np.round((image_height * scale - 1) / 4.0 + 1)
height = np.floor((height - 1) / 2 + 1 + 0.5)
height = np.floor((height - 1) / 2 + 1 + 0.5)
width = np.round((image_width * scale - 1) / 4.0 + 1)
width = np.floor((width - 1) / 2.0 + 1 + 0.5)
width = np.floor((width - 1) / 2.0 + 1 + 0.5)
# gt boxes
gt_boxes = boxes * scale
# 1. Generate proposals from bbox deltas and shifted anchors
shift_x = np.arange(0, width) * feat_stride
shift_y = np.arange(0, height) * feat_stride
shift_x, shift_y = np.meshgrid(shift_x, shift_y)
shifts = np.vstack(
(shift_x.ravel(), shift_y.ravel(), shift_x.ravel(),
shift_y.ravel())).transpose()
# add A anchors (1, A, 4) to
# cell K shifts (K, 1, 4) to get
# shift anchors (K, A, 4)
# reshape to (K*A, 4) shifted anchors
A = num_anchors
K = shifts.shape[0]
all_anchors = (anchors.reshape((1, A, 4)) + shifts.reshape(
(1, K, 4)).transpose((1, 0, 2)))
all_anchors = all_anchors.reshape((K * A, 4))
# compute overlap
overlaps_grid = bbox_overlaps(all_anchors.astype(np.float),
gt_boxes.astype(np.float))
# check how many gt boxes are covered by anchors
if num_objs != 0:
max_overlaps = overlaps_grid.max(axis=0)
fg_inds = []
for k in xrange(1, self.num_classes):
fg_inds.extend(
np.where((gt_classes == k) & (
max_overlaps >= cfg.TRAIN.FG_THRESH[k - 1]))
[0])
for i in xrange(self.num_classes):
self._num_boxes_all[i] += len(
np.where(gt_classes == i)[0])
self._num_boxes_covered[i] += len(
np.where(gt_classes[fg_inds] == i)[0])
return {
'boxes': boxes,
'gt_classes': gt_classes,
'gt_subclasses': gt_subclasses,
'gt_subclasses_flipped': gt_subclasses_flipped,
'gt_overlaps': overlaps,
'gt_subindexes': subindexes,
'gt_subindexes_flipped': subindexes_flipped,
'flipped': False
}
def _load_kitti_voxel_exemplar_annotation(self, index):
"""
Load image and bounding boxes info from txt file in the KITTI voxel exemplar format.
"""
if self._image_set == 'training' and self._seq_name != 'trainval':
prefix = 'train'
elif self._image_set == 'training':
prefix = 'trainval'
else:
prefix = ''
if prefix == '':
lines = []
lines_flipped = []
else:
filename = os.path.join(self._kitti_tracking_path, cfg.SUBCLS_NAME, prefix, index + '.txt')
if os.path.exists(filename):
print filename
# the annotation file contains flipped objects
lines = []
lines_flipped = []
with open(filename) as f:
for line in f:
words = line.split()
subcls = int(words[1])
is_flip = int(words[2])
if subcls != -1:
if is_flip == 0:
lines.append(line)
else:
lines_flipped.append(line)
else:
lines = []
lines_flipped = []
num_objs = len(lines)
# store information of flipped objects
assert (num_objs == len(lines_flipped)), 'The number of flipped objects is not the same!'
gt_subclasses_flipped = np.zeros((num_objs), dtype=np.int32)
for ix, line in enumerate(lines_flipped):
words = line.split()
subcls = int(words[1])
gt_subclasses_flipped[ix] = subcls
boxes = np.zeros((num_objs, 4), dtype=np.float32)
gt_classes = np.zeros((num_objs), dtype=np.int32)
gt_subclasses = np.zeros((num_objs), dtype=np.int32)
overlaps = np.zeros((num_objs, self.num_classes), dtype=np.float32)
subindexes = np.zeros((num_objs, self.num_classes), dtype=np.int32)
subindexes_flipped = np.zeros((num_objs, self.num_classes), dtype=np.int32)
for ix, line in enumerate(lines):
words = line.split()
cls = self._class_to_ind[words[0]]
subcls = int(words[1])
boxes[ix, :] = [float(n) for n in words[3:7]]
gt_classes[ix] = cls
gt_subclasses[ix] = subcls
overlaps[ix, cls] = 1.0
subindexes[ix, cls] = subcls
subindexes_flipped[ix, cls] = gt_subclasses_flipped[ix]
overlaps = scipy.sparse.csr_matrix(overlaps)
subindexes = scipy.sparse.csr_matrix(subindexes)
subindexes_flipped = scipy.sparse.csr_matrix(subindexes_flipped)
if cfg.IS_RPN:
if cfg.IS_MULTISCALE:
# compute overlaps between grid boxes and gt boxes in multi-scales
# rescale the gt boxes
boxes_all = np.zeros((0, 4), dtype=np.float32)
for scale in cfg.TRAIN.SCALES:
boxes_all = np.vstack((boxes_all, boxes * scale))
gt_classes_all = np.tile(gt_classes, len(cfg.TRAIN.SCALES))
# compute grid boxes
s = PIL.Image.open(self.image_path_from_index(index)).size
image_height = s[1]
image_width = s[0]
boxes_grid, _, _ = get_boxes_grid(image_height, image_width)
# compute overlap
overlaps_grid = bbox_overlaps(boxes_grid.astype(np.float), boxes_all.astype(np.float))
# check how many gt boxes are covered by grids
if num_objs != 0:
index = np.tile(range(num_objs), len(cfg.TRAIN.SCALES))
max_overlaps = overlaps_grid.max(axis = 0)
fg_inds = []
for k in xrange(1, self.num_classes):
fg_inds.extend(np.where((gt_classes_all == k) & (max_overlaps >= cfg.TRAIN.FG_THRESH[k-1]))[0])
index_covered = np.unique(index[fg_inds])
for i in xrange(self.num_classes):
self._num_boxes_all[i] += len(np.where(gt_classes == i)[0])
self._num_boxes_covered[i] += len(np.where(gt_classes[index_covered] == i)[0])
else:
assert len(cfg.TRAIN.SCALES_BASE) == 1
scale = cfg.TRAIN.SCALES_BASE[0]
feat_stride = 16
# faster rcnn region proposal
base_size = 16
ratios = [3.0, 2.0, 1.5, 1.0, 0.75, 0.5, 0.25]
scales = 2**np.arange(1, 6, 0.5)
anchors = generate_anchors(base_size, ratios, scales)
num_anchors = anchors.shape[0]
# image size
s = PIL.Image.open(self.image_path_from_index(index)).size
image_height = s[1]
image_width = s[0]
# height and width of the heatmap
height = np.round((image_height * scale - 1) / 4.0 + 1)
height = np.floor((height - 1) / 2 + 1 + 0.5)
height = np.floor((height - 1) / 2 + 1 + 0.5)
width = np.round((image_width * scale - 1) / 4.0 + 1)
width = np.floor((width - 1) / 2.0 + 1 + 0.5)
width = np.floor((width - 1) / 2.0 + 1 + 0.5)
# gt boxes
gt_boxes = boxes * scale
# 1. Generate proposals from bbox deltas and shifted anchors
shift_x = np.arange(0, width) * feat_stride
shift_y = np.arange(0, height) * feat_stride
shift_x, shift_y = np.meshgrid(shift_x, shift_y)
shifts = np.vstack((shift_x.ravel(), shift_y.ravel(),
shift_x.ravel(), shift_y.ravel())).transpose()
# add A anchors (1, A, 4) to
# cell K shifts (K, 1, 4) to get
# shift anchors (K, A, 4)
# reshape to (K*A, 4) shifted anchors
A = num_anchors
K = shifts.shape[0]
all_anchors = (anchors.reshape((1, A, 4)) + shifts.reshape((1, K, 4)).transpose((1, 0, 2)))
all_anchors = all_anchors.reshape((K * A, 4))
# compute overlap
overlaps_grid = bbox_overlaps(all_anchors.astype(np.float), gt_boxes.astype(np.float))
# check how many gt boxes are covered by anchors
if num_objs != 0:
max_overlaps = overlaps_grid.max(axis = 0)
fg_inds = []
for k in xrange(1, self.num_classes):
fg_inds.extend(np.where((gt_classes == k) & (max_overlaps >= cfg.TRAIN.FG_THRESH[k-1]))[0])
for i in xrange(self.num_classes):
self._num_boxes_all[i] += len(np.where(gt_classes == i)[0])
self._num_boxes_covered[i] += len(np.where(gt_classes[fg_inds] == i)[0])
return {'boxes' : boxes,
'gt_classes': gt_classes,
'gt_subclasses': gt_subclasses,
'gt_subclasses_flipped': gt_subclasses_flipped,
'gt_overlaps': overlaps,
'gt_subindexes': subindexes,
'gt_subindexes_flipped': subindexes_flipped,
'flipped' : False}
def _load_pascal_annotation(self, index):
"""
Load image and bounding boxes info from XML file in the PASCAL VOC
format.
"""
filename = os.path.join(self._data_path, 'Annotations', index + '.xml')
# print 'Loading: {}'.format(filename)
def get_data_from_tag(node, tag):
return node.getElementsByTagName(tag)[0].childNodes[0].data
with open(filename) as f:
data = minidom.parseString(f.read())
objs = data.getElementsByTagName('object')
num_objs = len(objs)
boxes = np.zeros((num_objs, 4), dtype=np.uint16)
gt_classes = np.zeros((num_objs), dtype=np.int32)
overlaps = np.zeros((num_objs, self.num_classes), dtype=np.float32)
# Load object bounding boxes into a data frame.
for ix, obj in enumerate(objs):
# Make pixel indexes 0-based
x1 = float(get_data_from_tag(obj, 'xmin')) - 1
y1 = float(get_data_from_tag(obj, 'ymin')) - 1
x2 = float(get_data_from_tag(obj, 'xmax')) - 1
y2 = float(get_data_from_tag(obj, 'ymax')) - 1
name = str(get_data_from_tag(obj, "name")).lower().strip()
if name in self._classes:
cls = self._class_to_ind[name]
else:
cls = 0
boxes[ix, :] = [x1, y1, x2, y2]
gt_classes[ix] = cls
overlaps[ix, cls] = 1.0
overlaps = scipy.sparse.csr_matrix(overlaps)
gt_subclasses = np.zeros((num_objs), dtype=np.int32)
gt_subclasses_flipped = np.zeros((num_objs), dtype=np.int32)
subindexes = np.zeros((num_objs, self.num_classes), dtype=np.int32)
subindexes_flipped = np.zeros((num_objs, self.num_classes),
dtype=np.int32)
subindexes = scipy.sparse.csr_matrix(subindexes)
subindexes_flipped = scipy.sparse.csr_matrix(subindexes_flipped)
if cfg.IS_RPN:
if cfg.IS_MULTISCALE:
# compute overlaps between grid boxes and gt boxes in multi-scales
# rescale the gt boxes
boxes_all = np.zeros((0, 4), dtype=np.float32)
for scale in cfg.TRAIN.SCALES:
boxes_all = np.vstack((boxes_all, boxes * scale))
gt_classes_all = np.tile(gt_classes, len(cfg.TRAIN.SCALES))
# compute grid boxes
s = PIL.Image.open(self.image_path_from_index(index)).size
image_height = s[1]
image_width = s[0]
boxes_grid, _, _ = get_boxes_grid(image_height, image_width)
# compute overlap
overlaps_grid = bbox_overlaps(boxes_grid.astype(np.float),
boxes_all.astype(np.float))
# check how many gt boxes are covered by grids
if num_objs != 0:
index = np.tile(range(num_objs), len(cfg.TRAIN.SCALES))
max_overlaps = overlaps_grid.max(axis=0)
fg_inds = []
for k in xrange(1, self.num_classes):
fg_inds.extend(
np.where((gt_classes_all == k) & (
max_overlaps >= cfg.TRAIN.FG_THRESH[k - 1]))
[0])
index_covered = np.unique(index[fg_inds])
for i in xrange(self.num_classes):
self._num_boxes_all[i] += len(
np.where(gt_classes == i)[0])
self._num_boxes_covered[i] += len(
np.where(gt_classes[index_covered] == i)[0])
else:
assert len(cfg.TRAIN.SCALES_BASE) == 1
scale = cfg.TRAIN.SCALES_BASE[0]
feat_stride = 16
# faster rcnn region proposal
anchors = generate_anchors()
num_anchors = anchors.shape[0]
# image size
s = PIL.Image.open(self.image_path_from_index(index)).size
image_height = s[1]
image_width = s[0]
# height and width of the heatmap
height = np.round((image_height * scale - 1) / 4.0 + 1)
height = np.floor((height - 1) / 2 + 1 + 0.5)
height = np.floor((height - 1) / 2 + 1 + 0.5)
width = np.round((image_width * scale - 1) / 4.0 + 1)
width = np.floor((width - 1) / 2.0 + 1 + 0.5)
width = np.floor((width - 1) / 2.0 + 1 + 0.5)
# gt boxes
gt_boxes = boxes * scale
# 1. Generate proposals from bbox deltas and shifted anchors
shift_x = np.arange(0, width) * feat_stride
shift_y = np.arange(0, height) * feat_stride
shift_x, shift_y = np.meshgrid(shift_x, shift_y)
shifts = np.vstack(
(shift_x.ravel(), shift_y.ravel(), shift_x.ravel(),
shift_y.ravel())).transpose()
# add A anchors (1, A, 4) to
# cell K shifts (K, 1, 4) to get
# shift anchors (K, A, 4)
# reshape to (K*A, 4) shifted anchors
A = num_anchors
K = shifts.shape[0]
all_anchors = (anchors.reshape((1, A, 4)) + shifts.reshape(
(1, K, 4)).transpose((1, 0, 2)))
all_anchors = all_anchors.reshape((K * A, 4))
# compute overlap
overlaps_grid = bbox_overlaps(all_anchors.astype(np.float),
gt_boxes.astype(np.float))
# check how many gt boxes are covered by anchors
if num_objs != 0:
max_overlaps = overlaps_grid.max(axis=0)
fg_inds = []
for k in xrange(1, self.num_classes):
fg_inds.extend(
np.where((gt_classes == k) & (
max_overlaps >= cfg.TRAIN.FG_THRESH[k - 1]))
[0])
for i in xrange(self.num_classes):
self._num_boxes_all[i] += len(
np.where(gt_classes == i)[0])
self._num_boxes_covered[i] += len(
np.where(gt_classes[fg_inds] == i)[0])
return {
'boxes': boxes,
'gt_classes': gt_classes,
'gt_subclasses': gt_subclasses,
'gt_subclasses_flipped': gt_subclasses_flipped,
'gt_overlaps': overlaps,
'gt_subindexes': subindexes,
'gt_subindexes_flipped': subindexes_flipped,
'flipped': False
}
def test_net(net, imdb):
output_dir = get_output_dir(imdb, net)
if not os.path.exists(output_dir):
os.makedirs(output_dir)
if 'nissan' in imdb.name:
output_dir_center = os.path.join(output_dir, 'imagesCenter')
if not os.path.exists(output_dir_center):
os.makedirs(output_dir_center)
output_dir_left = os.path.join(output_dir, 'imagesLeft')
if not os.path.exists(output_dir_left):
os.makedirs(output_dir_left)
output_dir_right = os.path.join(output_dir, 'imagesRight')
if not os.path.exists(output_dir_right):
os.makedirs(output_dir_right)
det_file = os.path.join(output_dir, 'detections.pkl')
print imdb.name
if os.path.exists(det_file):
with open(det_file, 'rb') as fid:
all_boxes = cPickle.load(fid)
print 'Detections loaded from {}'.format(det_file)
if cfg.IS_RPN:
print 'Evaluating detections'
imdb.evaluate_proposals(all_boxes, output_dir)
else:
print 'Applying NMS to all detections'
nms_dets = apply_nms(all_boxes, cfg.TEST.NMS)
print 'Evaluating detections'
print imdb.name
if not 'imagenet3d' in imdb.name:
imdb.evaluate_detections(nms_dets, output_dir)
imdb.evaluate_detections_one_file(nms_dets, output_dir)
return
"""Test a Fast R-CNN network on an image database."""
num_images = len(imdb.image_index)
# heuristic: keep an average of 40 detections per class per images prior
# to NMS
if ('voc' in imdb.name or 'pascal' in imdb.name
or 'imagenet3d' in imdb.name) and cfg.IS_RPN == False:
max_per_set = 40 * num_images
max_per_image = 100
else:
max_per_set = np.inf
# heuristic: keep at most 100 detection per class per image prior to NMS
max_per_image = 10000
# detection thresold for each class (this is adaptively set based on the
# max_per_set constraint)
if cfg.IS_RPN:
thresh = -np.inf * np.ones(imdb.num_classes)
else:
thresh = cfg.TEST.DET_THRESHOLD * np.ones(imdb.num_classes)
# top_scores will hold one minheap of scores per class (used to enforce the max_per_set constraint)
top_scores = [[] for _ in xrange(imdb.num_classes)]
# all detections are collected into:
# all_boxes[cls][image] = N x 5 array of detections in
# (x1, y1, x2, y2, score)
all_boxes = [[[] for _ in xrange(num_images)]
for _ in xrange(imdb.num_classes)]
# timers
_t = {'im_detect': Timer(), 'misc': Timer()}
if cfg.IS_RPN == False:
roidb = imdb.roidb
for i in xrange(num_images):
im = cv2.imread(imdb.image_path_at(i))
_t['im_detect'].tic()
if cfg.IS_RPN:
boxes_grid, _, _ = get_boxes_grid(im.shape[0], im.shape[1])
scores, boxes, scores_subcls, labels, views = im_detect_proposal(
net, im, boxes_grid, imdb.num_classes, imdb.num_subclasses,
imdb.subclass_mapping)
# save conv5 features
# index = imdb._image_index[i]
# filename = os.path.join(output_dir, index[5:] + '_conv5.pkl')
# with open(filename, 'wb') as f:
# cPickle.dump(conv5, f, cPickle.HIGHEST_PROTOCOL)
else:
if cfg.TEST.IS_PATCH:
scores, boxes, scores_subcls, views = im_detect_patch(
net, im, roidb[i]['boxes'], imdb.num_classes,
imdb.num_subclasses)
else:
scores, boxes, scores_subcls, views = im_detect(
net, im, roidb[i]['boxes'], imdb.num_classes,
imdb.num_subclasses)
_t['im_detect'].toc()
_t['misc'].tic()
count = 0
for j in xrange(1, imdb.num_classes):
if cfg.IS_RPN:
# inds = np.where(scores[:, j] > thresh[j])[0]
inds = np.where(labels == j)[0]
else:
inds = np.where((scores[:, j] > thresh[j])
& (roidb[i]['gt_classes'] == 0))[0]
cls_scores = scores[inds, j]
subcls_scores = scores_subcls[inds, :]
cls_boxes = boxes[inds, j * 4:(j + 1) * 4]
cls_views = views[inds, j * 3:(j + 1) * 3]
top_inds = np.argsort(-cls_scores)[:max_per_image]
cls_scores = cls_scores[top_inds]
subcls_scores = subcls_scores[top_inds, :]
cls_boxes = cls_boxes[top_inds, :]
cls_views = cls_views[top_inds, :]
if cfg.IS_RPN == False:
# push new scores onto the minheap
for val in cls_scores:
heapq.heappush(top_scores[j], val)
# if we've collected more than the max number of detection,
# then pop items off the minheap and update the class threshold
if len(top_scores[j]) > max_per_set:
while len(top_scores[j]) > max_per_set:
heapq.heappop(top_scores[j])
thresh[j] = top_scores[j][0]
# select the maximum score subclass in this class
if cfg.TEST.SUBCLS and cfg.IS_RPN == False:
index = np.where(imdb.subclass_mapping == j)[0]
max_indexes = subcls_scores[:, index].argmax(axis=1)
sub_classes = index[max_indexes]
else:
if subcls_scores.shape[0] == 0:
sub_classes = cls_scores
else:
sub_classes = subcls_scores.argmax(axis=1).ravel()
all_boxes[j][i] = \
np.hstack((cls_boxes, cls_scores[:, np.newaxis], sub_classes[:, np.newaxis], cls_views)) \
.astype(np.float32, copy=False)
count = count + len(cls_scores)
if 0:
keep = nms(all_boxes[j][i], cfg.TEST.NMS)
vis_detections(im, imdb.classes[j], all_boxes[j][i][keep, :])
_t['misc'].toc()
print 'im_detect: {:d}/{:d} {:d} object detected {:.3f}s {:.3f}s' \
.format(i + 1, num_images, count, _t['im_detect'].average_time, _t['misc'].average_time)
for j in xrange(1, imdb.num_classes):
for i in xrange(num_images):
inds = np.where(all_boxes[j][i][:, 4] > thresh[j])[0]
all_boxes[j][i] = all_boxes[j][i][inds, :]
det_file = os.path.join(output_dir, 'detections.pkl')
with open(det_file, 'wb') as f:
cPickle.dump(all_boxes, f, cPickle.HIGHEST_PROTOCOL)
if cfg.IS_RPN:
print 'Evaluating detections'
imdb.evaluate_proposals(all_boxes, output_dir)
if 'mot' in imdb.name:
imdb.evaluate_proposals_one_file(all_boxes, output_dir)
else:
print 'Applying NMS to all detections'
nms_dets = apply_nms(all_boxes, cfg.TEST.NMS)
print 'Evaluating detections'
if not 'imagenet3d' in imdb.name:
imdb.evaluate_detections(nms_dets, output_dir)
imdb.evaluate_detections_one_file(nms_dets, output_dir)
def prepare_roidb(imdb):
"""Enrich the imdb's roidb by adding some derived quantities that
are useful for training. This function precomputes the maximum
overlap, taken over ground-truth boxes, between each ROI and
each ground-truth box. The class with maximum overlap is also
recorded.
"""
cache_file = os.path.join(imdb.cache_path, imdb.name + '_gt_roidb_prepared.pkl')
if os.path.exists(cache_file):
with open(cache_file, 'rb') as fid:
imdb._roidb = cPickle.load(fid)
print '{} gt roidb prepared loaded from {}'.format(imdb.name, cache_file)
return
roidb = imdb.roidb
for i in xrange(len(imdb.image_index)):
roidb[i]['image'] = imdb.image_path_at(i)
boxes = roidb[i]['boxes']
labels = roidb[i]['gt_classes']
info_boxes = np.zeros((0, 18), dtype=np.float32)
if boxes.shape[0] == 0:
roidb[i]['info_boxes'] = info_boxes
continue
# compute grid boxes
s = PIL.Image.open(imdb.image_path_at(i)).size
image_height = s[1]
image_width = s[0]
boxes_grid, cx, cy = get_boxes_grid(image_height, image_width)
# for each scale
for scale_ind, scale in enumerate(cfg.TRAIN.SCALES):
boxes_rescaled = boxes * scale
# compute overlap
overlaps = bbox_overlaps(boxes_grid.astype(np.float), boxes_rescaled.astype(np.float))
max_overlaps = overlaps.max(axis = 1)
argmax_overlaps = overlaps.argmax(axis = 1)
max_classes = labels[argmax_overlaps]
# select positive boxes
fg_inds = []
for k in xrange(1, imdb.num_classes):
fg_inds.extend(np.where((max_classes == k) & (max_overlaps >= cfg.TRAIN.FG_THRESH))[0])
if len(fg_inds) > 0:
gt_inds = argmax_overlaps[fg_inds]
# bounding box regression targets
gt_targets = _compute_targets(boxes_grid[fg_inds,:], boxes_rescaled[gt_inds,:])
# scale mapping for RoI pooling
scale_ind_map = cfg.TRAIN.SCALE_MAPPING[scale_ind]
scale_map = cfg.TRAIN.SCALES[scale_ind_map]
# contruct the list of positive boxes
# (cx, cy, scale_ind, box, scale_ind_map, box_map, gt_label, gt_sublabel, target)
info_box = np.zeros((len(fg_inds), 18), dtype=np.float32)
info_box[:, 0] = cx[fg_inds]
info_box[:, 1] = cy[fg_inds]
info_box[:, 2] = scale_ind
info_box[:, 3:7] = boxes_grid[fg_inds,:]
info_box[:, 7] = scale_ind_map
info_box[:, 8:12] = boxes_grid[fg_inds,:] * scale_map / scale
info_box[:, 12] = labels[gt_inds]
info_box[:, 14:] = gt_targets
info_boxes = np.vstack((info_boxes, info_box))
roidb[i]['info_boxes'] = info_boxes
with open(cache_file, 'wb') as fid:
cPickle.dump(roidb, fid, cPickle.HIGHEST_PROTOCOL)
print 'wrote gt roidb prepared to {}'.format(cache_file)
def _load_pascal_annotation(self, index):
"""
Load image and bounding boxes info from XML file in the PASCAL VOC
format.
"""
filename = os.path.join(self._data_path, 'Annotations', index + '.xml')
# print 'Loading: {}'.format(filename)
def get_data_from_tag(node, tag):
return node.getElementsByTagName(tag)[0].childNodes[0].data
with open(filename) as f:
data = minidom.parseString(f.read())
objs = data.getElementsByTagName('object')
num_objs = len(objs)
boxes = np.zeros((num_objs, 4), dtype=np.uint16)
gt_classes = np.zeros((num_objs), dtype=np.int32)
overlaps = np.zeros((num_objs, self.num_classes), dtype=np.float32)
# Load object bounding boxes into a data frame.
for ix, obj in enumerate(objs):
# Make pixel indexes 0-based
x1 = float(get_data_from_tag(obj, 'xmin')) - 1
y1 = float(get_data_from_tag(obj, 'ymin')) - 1
x2 = float(get_data_from_tag(obj, 'xmax')) - 1
y2 = float(get_data_from_tag(obj, 'ymax')) - 1
name = str(get_data_from_tag(obj, "name")).lower().strip()
if name in self._classes:
cls = self._class_to_ind[name]
else:
cls = 0
boxes[ix, :] = [x1, y1, x2, y2]
gt_classes[ix] = cls
overlaps[ix, cls] = 1.0
overlaps = scipy.sparse.csr_matrix(overlaps)
gt_subclasses = np.zeros((num_objs), dtype=np.int32)
gt_subclasses_flipped = np.zeros((num_objs), dtype=np.int32)
subindexes = np.zeros((num_objs, self.num_classes), dtype=np.int32)
subindexes_flipped = np.zeros((num_objs, self.num_classes), dtype=np.int32)
subindexes = scipy.sparse.csr_matrix(subindexes)
subindexes_flipped = scipy.sparse.csr_matrix(subindexes_flipped)
if cfg.IS_RPN:
if cfg.IS_MULTISCALE:
# compute overlaps between grid boxes and gt boxes in multi-scales
# rescale the gt boxes
boxes_all = np.zeros((0, 4), dtype=np.float32)
for scale in cfg.TRAIN.SCALES:
boxes_all = np.vstack((boxes_all, boxes * scale))
gt_classes_all = np.tile(gt_classes, len(cfg.TRAIN.SCALES))
# compute grid boxes
s = PIL.Image.open(self.image_path_from_index(index)).size
image_height = s[1]
image_width = s[0]
boxes_grid, _, _ = get_boxes_grid(image_height, image_width)
# compute overlap
overlaps_grid = bbox_overlaps(boxes_grid.astype(np.float), boxes_all.astype(np.float))
# check how many gt boxes are covered by grids
if num_objs != 0:
index = np.tile(range(num_objs), len(cfg.TRAIN.SCALES))
max_overlaps = overlaps_grid.max(axis = 0)
fg_inds = []
for k in xrange(1, self.num_classes):
fg_inds.extend(np.where((gt_classes_all == k) & (max_overlaps >= cfg.TRAIN.FG_THRESH[k-1]))[0])
index_covered = np.unique(index[fg_inds])
for i in xrange(self.num_classes):
self._num_boxes_all[i] += len(np.where(gt_classes == i)[0])
self._num_boxes_covered[i] += len(np.where(gt_classes[index_covered] == i)[0])
else:
assert len(cfg.TRAIN.SCALES_BASE) == 1
scale = cfg.TRAIN.SCALES_BASE[0]
feat_stride = 16
# faster rcnn region proposal
anchors = generate_anchors()
num_anchors = anchors.shape[0]
# image size
s = PIL.Image.open(self.image_path_from_index(index)).size
image_height = s[1]
image_width = s[0]
# height and width of the heatmap
height = np.round((image_height * scale - 1) / 4.0 + 1)
height = np.floor((height - 1) / 2 + 1 + 0.5)
height = np.floor((height - 1) / 2 + 1 + 0.5)
width = np.round((image_width * scale - 1) / 4.0 + 1)
width = np.floor((width - 1) / 2.0 + 1 + 0.5)
width = np.floor((width - 1) / 2.0 + 1 + 0.5)
# gt boxes
gt_boxes = boxes * scale
# 1. Generate proposals from bbox deltas and shifted anchors
shift_x = np.arange(0, width) * feat_stride
shift_y = np.arange(0, height) * feat_stride
shift_x, shift_y = np.meshgrid(shift_x, shift_y)
shifts = np.vstack((shift_x.ravel(), shift_y.ravel(),
shift_x.ravel(), shift_y.ravel())).transpose()
# add A anchors (1, A, 4) to
# cell K shifts (K, 1, 4) to get
# shift anchors (K, A, 4)
# reshape to (K*A, 4) shifted anchors
A = num_anchors
K = shifts.shape[0]
all_anchors = (anchors.reshape((1, A, 4)) + shifts.reshape((1, K, 4)).transpose((1, 0, 2)))
all_anchors = all_anchors.reshape((K * A, 4))
# compute overlap
overlaps_grid = bbox_overlaps(all_anchors.astype(np.float), gt_boxes.astype(np.float))
# check how many gt boxes are covered by anchors
if num_objs != 0:
max_overlaps = overlaps_grid.max(axis = 0)
fg_inds = []
for k in xrange(1, self.num_classes):
fg_inds.extend(np.where((gt_classes == k) & (max_overlaps >= cfg.TRAIN.FG_THRESH[k-1]))[0])
for i in xrange(self.num_classes):
self._num_boxes_all[i] += len(np.where(gt_classes == i)[0])
self._num_boxes_covered[i] += len(np.where(gt_classes[fg_inds] == i)[0])
return {'boxes' : boxes,
'gt_classes': gt_classes,
'gt_subclasses': gt_subclasses,
'gt_subclasses_flipped': gt_subclasses_flipped,
'gt_overlaps' : overlaps,
'gt_subindexes': subindexes,
'gt_subindexes_flipped': subindexes_flipped,
'flipped' : False}
def _load_kitti_annotation(self, index):
"""
Load image and bounding boxes info from txt file in the KITTI format.
"""
if self._image_set == 'test':
lines = []
else:
filename = os.path.join(self._data_path, 'training', 'label_2',
index + '.txt')
lines = []
with open(filename) as f:
for line in f:
line = line.replace('Van', 'Car')
words = line.split()
cls = words[0]
truncation = float(words[1])
occlusion = int(words[2])
height = float(words[7]) - float(words[5])
if cls in self._class_to_ind and truncation < 0.5 and occlusion < 3 and height > 25:
lines.append(line)
num_objs = len(lines)
boxes = np.zeros((num_objs, 4), dtype=np.float32)
gt_classes = np.zeros((num_objs), dtype=np.int32)
overlaps = np.zeros((num_objs, self.num_classes), dtype=np.float32)
for ix, line in enumerate(lines):
words = line.split()
cls = self._class_to_ind[words[0]]
boxes[ix, :] = [float(n) for n in words[4:8]]
gt_classes[ix] = cls
overlaps[ix, cls] = 1.0
overlaps = scipy.sparse.csr_matrix(overlaps)
gt_subclasses = np.zeros((num_objs), dtype=np.int32)
gt_subclasses_flipped = np.zeros((num_objs), dtype=np.int32)
subindexes = np.zeros((num_objs, self.num_classes), dtype=np.int32)
subindexes_flipped = np.zeros((num_objs, self.num_classes),
dtype=np.int32)
subindexes = scipy.sparse.csr_matrix(subindexes)
subindexes_flipped = scipy.sparse.csr_matrix(subindexes_flipped)
if cfg.IS_RPN:
if cfg.IS_MULTISCALE:
# compute overlaps between grid boxes and gt boxes in multi-scales
# rescale the gt boxes
boxes_all = np.zeros((0, 4), dtype=np.float32)
for scale in cfg.TRAIN.SCALES:
boxes_all = np.vstack((boxes_all, boxes * scale))
gt_classes_all = np.tile(gt_classes, len(cfg.TRAIN.SCALES))
# compute grid boxes
s = PIL.Image.open(self.image_path_from_index(index)).size
image_height = s[1]
image_width = s[0]
boxes_grid, _, _ = get_boxes_grid(image_height, image_width)
# compute overlap
overlaps_grid = bbox_overlaps(boxes_grid.astype(np.float),
boxes_all.astype(np.float))
# check how many gt boxes are covered by grids
if num_objs != 0:
index = np.tile(range(num_objs), len(cfg.TRAIN.SCALES))
max_overlaps = overlaps_grid.max(axis=0)
fg_inds = []
for k in xrange(1, self.num_classes):
fg_inds.extend(
np.where((gt_classes_all == k) & (
max_overlaps >= cfg.TRAIN.FG_THRESH[k - 1]))
[0])
index_covered = np.unique(index[fg_inds])
for i in xrange(self.num_classes):
self._num_boxes_all[i] += len(
np.where(gt_classes == i)[0])
self._num_boxes_covered[i] += len(
np.where(gt_classes[index_covered] == i)[0])
else:
assert len(cfg.TRAIN.SCALES_BASE) == 1
scale = cfg.TRAIN.SCALES_BASE[0]
feat_stride = 16
# faster rcnn region proposal
anchors = generate_anchors()
num_anchors = anchors.shape[0]
# image size
s = PIL.Image.open(self.image_path_from_index(index)).size
image_height = s[1]
image_width = s[0]
# height and width of the heatmap
height = np.round((image_height * scale - 1) / 4.0 + 1)
height = np.floor((height - 1) / 2 + 1 + 0.5)
height = np.floor((height - 1) / 2 + 1 + 0.5)
width = np.round((image_width * scale - 1) / 4.0 + 1)
width = np.floor((width - 1) / 2.0 + 1 + 0.5)
width = np.floor((width - 1) / 2.0 + 1 + 0.5)
# gt boxes
gt_boxes = boxes * scale
# 1. Generate proposals from bbox deltas and shifted anchors
shift_x = np.arange(0, width) * feat_stride
shift_y = np.arange(0, height) * feat_stride
shift_x, shift_y = np.meshgrid(shift_x, shift_y)
shifts = np.vstack(
(shift_x.ravel(), shift_y.ravel(), shift_x.ravel(),
shift_y.ravel())).transpose()
# add A anchors (1, A, 4) to
# cell K shifts (K, 1, 4) to get
# shift anchors (K, A, 4)
# reshape to (K*A, 4) shifted anchors
A = num_anchors
K = shifts.shape[0]
all_anchors = (anchors.reshape((1, A, 4)) + shifts.reshape(
(1, K, 4)).transpose((1, 0, 2)))
all_anchors = all_anchors.reshape((K * A, 4))
# compute overlap
overlaps_grid = bbox_overlaps(all_anchors.astype(np.float),
gt_boxes.astype(np.float))
# check how many gt boxes are covered by anchors
if num_objs != 0:
max_overlaps = overlaps_grid.max(axis=0)
fg_inds = []
for k in xrange(1, self.num_classes):
fg_inds.extend(
np.where((gt_classes == k) & (
max_overlaps >= cfg.TRAIN.FG_THRESH[k - 1]))
[0])
for i in xrange(self.num_classes):
self._num_boxes_all[i] += len(
np.where(gt_classes == i)[0])
self._num_boxes_covered[i] += len(
np.where(gt_classes[fg_inds] == i)[0])
return {
'boxes': boxes,
'gt_classes': gt_classes,
'gt_subclasses': gt_subclasses,
'gt_subclasses_flipped': gt_subclasses_flipped,
'gt_overlaps': overlaps,
'gt_subindexes': subindexes,
'gt_subindexes_flipped': subindexes_flipped,
'flipped': False
}
def prepare_roidb(imdb):
"""Enrich the imdb's roidb by adding some derived quantities(可以求导的量) that
are useful for training. This function precomputes the maximum
overlap, taken over ground-truth boxes, between each ROI and
each ground-truth box. The class with maximum overlap is also
recorded.
"""
# 如果有cache文件，加载后直接返回即可
cache_file = os.path.join(imdb.cache_path, imdb.name + '_gt_roidb_prepared.pkl')
if os.path.exists(cache_file):
with open(cache_file, 'rb') as fid:
imdb._roidb = cPickle.load(fid)
print '{} gt roidb prepared loaded from {}'.format(imdb.name, cache_file)
return
roidb = imdb.roidb
for i in xrange(len(imdb.image_index)):
roidb[i]['image'] = imdb.image_path_at(i)
# 这应该是gt box
# roidb中的box并没有对应到原图！！！！！！！！！！！！！！！！！！
boxes = roidb[i]['boxes']
labels = roidb[i]['gt_classes']
# feamap每个点9个box，每个box对应两个概率：是fg的概率；不是bg的概率
# 生成的就是个空array
# array([], shape=(0, 18), dtype=float32)
info_boxes = np.zeros((0, 18), dtype=np.float32)
if boxes.shape[0] == 0:
roidb[i]['info_boxes'] = info_boxes
continue
# compute grid boxes
s = PIL.Image.open(imdb.image_path_at(i)).size
image_height = s[1]
image_width = s[0]
# 输入：图片的真是高度和宽度
# 输出：boxes_grid：非常多(feamap所有点的数量*num_aspect)个[x1,y1,x2,y2], centers[:,0], centers[:,1]
# 输出：box在原图中的左上角和右下角坐标；feature map中各个点对应的x坐标和y坐标
# 这个box不是gt，这里是给feature map中的每个点生成多个box(不同比例的) roidb中的box是 gt
boxes_grid, cx, cy = get_boxes_grid(image_height, image_width)
# Scales to use during training (can list multiple scales)
# Each scale is the pixel size of an image's shortest side
#__C.TRAIN.SCALES = (600,)
# for each scale
for scale_ind, scale in enumerate(cfg.TRAIN.SCALES):
# scale应该是16
boxes_rescaled = boxes * scale
# compute overlap
overlaps = bbox_overlaps(boxes_grid.astype(np.float), boxes_rescaled.astype(np.float))
# 为每个box 找个与它最match的gt box
# 最大的IoU值
max_overlaps = overlaps.max(axis = 1)
# 最大的IoU值对应的gt box的索引
argmax_overlaps = overlaps.argmax(axis = 1)
# 最match的gt box对应的类别
max_classes = labels[argmax_overlaps]
# select positive boxes
fg_inds = []
# 遍历所有类别，找出满足条件的boxes作为fg
for k in xrange(1, imdb.num_classes):
# IoU超过一定阈值的box才是fg！
fg_inds.extend(np.where((max_classes == k) & (max_overlaps >= cfg.TRAIN.FG_THRESH))[0])
if len(fg_inds) > 0:
# fg对应的gt box的索引
gt_inds = argmax_overlaps[fg_inds]
# bounding box regression targets
# 计算当前fg box 和其对应的 gt box 的偏移量
# 返回值是2维的，有4列。第0列：x的偏移量；第1列：y的偏移量；第2列：w的伸缩量；第4列：h的伸缩量
gt_targets = _compute_targets(boxes_grid[fg_inds,:], boxes_rescaled[gt_inds,:])
# scale mapping for RoI pooling
# cfg中没有这个变量？？？
scale_ind_map = cfg.TRAIN.SCALE_MAPPING[scale_ind]
scale_map = cfg.TRAIN.SCALES[scale_ind_map]
# 创建fg对应的list
# contruct the list of positive boxes
# (cx, cy, scale_ind, box, scale_ind_map, box_map, gt_label, gt_sublabel, target)
# 这里的18可不是9个anchor，而是1个anchor，用了18列存储相关信息
info_box = np.zeros((len(fg_inds), 18), dtype=np.float32)
info_box[:, 0] = cx[fg_inds]
info_box[:, 1] = cy[fg_inds]
info_box[:, 2] = scale_ind
info_box[:, 3:7] = boxes_grid[fg_inds,:]
info_box[:, 7] = scale_ind_map
info_box[:, 8:12] = boxes_grid[fg_inds,:] * scale_map / scale
info_box[:, 12] = labels[gt_inds]
info_box[:, 14:] = gt_targets
info_boxes = np.vstack((info_boxes, info_box))
roidb[i]['info_boxes'] = info_boxes
with open(cache_file, 'wb') as fid:
cPickle.dump(roidb, fid, cPickle.HIGHEST_PROTOCOL)
print 'wrote gt roidb prepared to {}'.format(cache_file)
def _load_kitti_annotation(self, index):
"""
Load image and bounding boxes info from txt file in the KITTI format.
"""
if self._image_set == 'test':
lines = []
else:
filename = os.path.join(self._data_path, 'training', 'label_2', index + '.txt')
lines = []
with open(filename) as f:
for line in f:
line = line.replace('Van', 'Car')
words = line.split()
cls = words[0]
truncation = float(words[1])
occlusion = int(words[2])
height = float(words[7]) - float(words[5])
if cls in self._class_to_ind and truncation < 0.5 and occlusion < 3 and height > 25:
lines.append(line)
num_objs = len(lines)
boxes = np.zeros((num_objs, 4), dtype=np.float32)
gt_classes = np.zeros((num_objs), dtype=np.int32)
overlaps = np.zeros((num_objs, self.num_classes), dtype=np.float32)
for ix, line in enumerate(lines):
words = line.split()
cls = self._class_to_ind[words[0]]
boxes[ix, :] = [float(n) for n in words[4:8]]
gt_classes[ix] = cls
overlaps[ix, cls] = 1.0
overlaps = scipy.sparse.csr_matrix(overlaps)
gt_subclasses = np.zeros((num_objs), dtype=np.int32)
gt_subclasses_flipped = np.zeros((num_objs), dtype=np.int32)
subindexes = np.zeros((num_objs, self.num_classes), dtype=np.int32)
subindexes_flipped = np.zeros((num_objs, self.num_classes), dtype=np.int32)
subindexes = scipy.sparse.csr_matrix(subindexes)
subindexes_flipped = scipy.sparse.csr_matrix(subindexes_flipped)
if cfg.IS_RPN:
if cfg.IS_MULTISCALE:
# compute overlaps between grid boxes and gt boxes in multi-scales
# rescale the gt boxes
boxes_all = np.zeros((0, 4), dtype=np.float32)
for scale in cfg.TRAIN.SCALES:
boxes_all = np.vstack((boxes_all, boxes * scale))
gt_classes_all = np.tile(gt_classes, len(cfg.TRAIN.SCALES))
# compute grid boxes
s = PIL.Image.open(self.image_path_from_index(index)).size
image_height = s[1]
image_width = s[0]
boxes_grid, _, _ = get_boxes_grid(image_height, image_width)
# compute overlap
overlaps_grid = bbox_overlaps(boxes_grid.astype(np.float), boxes_all.astype(np.float))
# check how many gt boxes are covered by grids
if num_objs != 0:
index = np.tile(range(num_objs), len(cfg.TRAIN.SCALES))
max_overlaps = overlaps_grid.max(axis = 0)
fg_inds = []
for k in xrange(1, self.num_classes):
fg_inds.extend(np.where((gt_classes_all == k) & (max_overlaps >= cfg.TRAIN.FG_THRESH[k-1]))[0])
index_covered = np.unique(index[fg_inds])
for i in xrange(self.num_classes):
self._num_boxes_all[i] += len(np.where(gt_classes == i)[0])
self._num_boxes_covered[i] += len(np.where(gt_classes[index_covered] == i)[0])
else:
assert len(cfg.TRAIN.SCALES_BASE) == 1
scale = cfg.TRAIN.SCALES_BASE[0]
feat_stride = 16
# faster rcnn region proposal
anchors = generate_anchors()
num_anchors = anchors.shape[0]
# image size
s = PIL.Image.open(self.image_path_from_index(index)).size
image_height = s[1]
image_width = s[0]
# height and width of the heatmap
height = np.round((image_height * scale - 1) / 4.0 + 1)
height = np.floor((height - 1) / 2 + 1 + 0.5)
height = np.floor((height - 1) / 2 + 1 + 0.5)
width = np.round((image_width * scale - 1) / 4.0 + 1)
width = np.floor((width - 1) / 2.0 + 1 + 0.5)
width = np.floor((width - 1) / 2.0 + 1 + 0.5)
# gt boxes
gt_boxes = boxes * scale
# 1. Generate proposals from bbox deltas and shifted anchors
shift_x = np.arange(0, width) * feat_stride
shift_y = np.arange(0, height) * feat_stride
shift_x, shift_y = np.meshgrid(shift_x, shift_y)
shifts = np.vstack((shift_x.ravel(), shift_y.ravel(),
shift_x.ravel(), shift_y.ravel())).transpose()
# add A anchors (1, A, 4) to
# cell K shifts (K, 1, 4) to get
# shift anchors (K, A, 4)
# reshape to (K*A, 4) shifted anchors
A = num_anchors
K = shifts.shape[0]
all_anchors = (anchors.reshape((1, A, 4)) + shifts.reshape((1, K, 4)).transpose((1, 0, 2)))
all_anchors = all_anchors.reshape((K * A, 4))
# compute overlap
overlaps_grid = bbox_overlaps(all_anchors.astype(np.float), gt_boxes.astype(np.float))
# check how many gt boxes are covered by anchors
if num_objs != 0:
max_overlaps = overlaps_grid.max(axis = 0)
fg_inds = []
for k in xrange(1, self.num_classes):
fg_inds.extend(np.where((gt_classes == k) & (max_overlaps >= cfg.TRAIN.FG_THRESH[k-1]))[0])
for i in xrange(self.num_classes):
self._num_boxes_all[i] += len(np.where(gt_classes == i)[0])
self._num_boxes_covered[i] += len(np.where(gt_classes[fg_inds] == i)[0])
return {'boxes' : boxes,
'gt_classes': gt_classes,
'gt_subclasses': gt_subclasses,
'gt_subclasses_flipped': gt_subclasses_flipped,
'gt_overlaps' : overlaps,
'gt_subindexes': subindexes,
'gt_subindexes_flipped': subindexes_flipped,
'flipped' : False}
def test_net(net, imdb):
output_dir = get_output_dir(imdb, net)
if not os.path.exists(output_dir):
os.makedirs(output_dir)
if 'nissan' in imdb.name:
output_dir_center = os.path.join(output_dir, 'imagesCenter')
if not os.path.exists(output_dir_center):
os.makedirs(output_dir_center)
output_dir_left = os.path.join(output_dir, 'imagesLeft')
if not os.path.exists(output_dir_left):
os.makedirs(output_dir_left)
output_dir_right = os.path.join(output_dir, 'imagesRight')
if not os.path.exists(output_dir_right):
os.makedirs(output_dir_right)
det_file = os.path.join(output_dir, 'detections.pkl')
print imdb.name
if os.path.exists(det_file):
with open(det_file, 'rb') as fid:
all_boxes = cPickle.load(fid)
print 'Detections loaded from {}'.format(det_file)
if cfg.IS_RPN:
print 'Evaluating detections'
imdb.evaluate_proposals(all_boxes, output_dir)
else:
print 'Applying NMS to all detections'
nms_dets = apply_nms(all_boxes, cfg.TEST.NMS)
print 'Evaluating detections'
print imdb.name
if not 'imagenet3d' in imdb.name:
imdb.evaluate_detections(nms_dets, output_dir)
imdb.evaluate_detections_one_file(nms_dets, output_dir)
return
"""Test a Fast R-CNN network on an image database."""
num_images = len(imdb.image_index)
# heuristic: keep an average of 40 detections per class per images prior
# to NMS
if ('voc' in imdb.name or 'pascal' in imdb.name or 'imagenet3d' in imdb.name) and cfg.IS_RPN == False:
max_per_set = 40 * num_images
max_per_image = 100
else:
max_per_set = np.inf
# heuristic: keep at most 100 detection per class per image prior to NMS
max_per_image = 10000
# detection thresold for each class (this is adaptively set based on the
# max_per_set constraint)
if cfg.IS_RPN:
thresh = -np.inf * np.ones(imdb.num_classes)
else:
thresh = cfg.TEST.DET_THRESHOLD * np.ones(imdb.num_classes)
# top_scores will hold one minheap of scores per class (used to enforce the max_per_set constraint)
top_scores = [[] for _ in xrange(imdb.num_classes)]
# all detections are collected into:
# all_boxes[cls][image] = N x 5 array of detections in
# (x1, y1, x2, y2, score)
all_boxes = [[[] for _ in xrange(num_images)]
for _ in xrange(imdb.num_classes)]
# timers
_t = {'im_detect' : Timer(), 'misc' : Timer()}
if cfg.IS_RPN == False:
roidb = imdb.roidb
for i in xrange(num_images):
im = cv2.imread(imdb.image_path_at(i))
_t['im_detect'].tic()
if cfg.IS_RPN:
boxes_grid, _, _ = get_boxes_grid(im.shape[0], im.shape[1])
scores, boxes, scores_subcls, labels, views = im_detect_proposal(net, im, boxes_grid, imdb.num_classes, imdb.num_subclasses, imdb.subclass_mapping)
# save conv5 features
# index = imdb._image_index[i]
# filename = os.path.join(output_dir, index[5:] + '_conv5.pkl')
# with open(filename, 'wb') as f:
# cPickle.dump(conv5, f, cPickle.HIGHEST_PROTOCOL)
else:
if cfg.TEST.IS_PATCH:
scores, boxes, scores_subcls, views = im_detect_patch(net, im, roidb[i]['boxes'], imdb.num_classes, imdb.num_subclasses)
else:
scores, boxes, scores_subcls, views = im_detect(net, im, roidb[i]['boxes'], imdb.num_classes, imdb.num_subclasses)
_t['im_detect'].toc()
_t['misc'].tic()
count = 0
for j in xrange(1, imdb.num_classes):
if cfg.IS_RPN:
# inds = np.where(scores[:, j] > thresh[j])[0]
inds = np.where(labels == j)[0]
else:
inds = np.where((scores[:, j] > thresh[j]) & (roidb[i]['gt_classes'] == 0))[0]
cls_scores = scores[inds, j]
subcls_scores = scores_subcls[inds, :]
cls_boxes = boxes[inds, j*4:(j+1)*4]
cls_views = views[inds, j*3:(j+1)*3]
top_inds = np.argsort(-cls_scores)[:max_per_image]
cls_scores = cls_scores[top_inds]
subcls_scores = subcls_scores[top_inds, :]
cls_boxes = cls_boxes[top_inds, :]
cls_views = cls_views[top_inds, :]
if cfg.IS_RPN == False:
# push new scores onto the minheap
for val in cls_scores:
heapq.heappush(top_scores[j], val)
# if we've collected more than the max number of detection,
# then pop items off the minheap and update the class threshold
if len(top_scores[j]) > max_per_set:
while len(top_scores[j]) > max_per_set:
heapq.heappop(top_scores[j])
thresh[j] = top_scores[j][0]
# select the maximum score subclass in this class
if cfg.TEST.SUBCLS and cfg.IS_RPN == False:
index = np.where(imdb.subclass_mapping == j)[0]
max_indexes = subcls_scores[:,index].argmax(axis = 1)
sub_classes = index[max_indexes]
else:
if subcls_scores.shape[0] == 0:
sub_classes = cls_scores
else:
sub_classes = subcls_scores.argmax(axis = 1).ravel()
all_boxes[j][i] = \
np.hstack((cls_boxes, cls_scores[:, np.newaxis], sub_classes[:, np.newaxis], cls_views)) \
.astype(np.float32, copy=False)
count = count + len(cls_scores)
if 0:
keep = nms(all_boxes[j][i], cfg.TEST.NMS)
vis_detections(im, imdb.classes[j], all_boxes[j][i][keep, :])
_t['misc'].toc()
print 'im_detect: {:d}/{:d} {:d} object detected {:.3f}s {:.3f}s' \
.format(i + 1, num_images, count, _t['im_detect'].average_time, _t['misc'].average_time)
for j in xrange(1, imdb.num_classes):
for i in xrange(num_images):
inds = np.where(all_boxes[j][i][:, 4] > thresh[j])[0]
all_boxes[j][i] = all_boxes[j][i][inds, :]
det_file = os.path.join(output_dir, 'detections.pkl')
with open(det_file, 'wb') as f:
cPickle.dump(all_boxes, f, cPickle.HIGHEST_PROTOCOL)
if cfg.IS_RPN:
print 'Evaluating detections'
imdb.evaluate_proposals(all_boxes, output_dir)
if 'mot' in imdb.name:
imdb.evaluate_proposals_one_file(all_boxes, output_dir)
else:
print 'Applying NMS to all detections'
nms_dets = apply_nms(all_boxes, cfg.TEST.NMS)
print 'Evaluating detections'
if not 'imagenet3d' in imdb.name:
imdb.evaluate_detections(nms_dets, output_dir)
imdb.evaluate_detections_one_file(nms_dets, output_dir)
def _load_imagenet3d_annotation(self, index):
"""
Load image and bounding boxes info from txt file in the imagenet3d format.
"""
if self._image_set == 'test' or self._image_set == 'test_1' or self._image_set == 'test_2':
lines = []
else:
filename = os.path.join(self._imagenet3d_path, 'Labels',
index + '.txt')
lines = []
with open(filename) as f:
for line in f:
lines.append(line)
num_objs = len(lines)
boxes = np.zeros((num_objs, 4), dtype=np.float32)
viewpoints = np.zeros(
(num_objs, 3),
dtype=np.float32) # azimuth, elevation, in-plane rotation
viewpoints_flipped = np.zeros(
(num_objs, 3),
dtype=np.float32) # azimuth, elevation, in-plane rotation
gt_classes = np.zeros((num_objs), dtype=np.int32)
overlaps = np.zeros((num_objs, self.num_classes), dtype=np.float32)
for ix, line in enumerate(lines):
words = line.split()
assert len(words) == 5 or len(
words) == 8, 'Wrong label format: {}'.format(index)
cls = self._class_to_ind[words[0]]
boxes[ix, :] = [float(n) for n in words[1:5]]
gt_classes[ix] = cls
overlaps[ix, cls] = 1.0
if len(words) == 8:
viewpoints[ix, :] = [float(n) for n in words[5:8]]
# flip the viewpoint
viewpoints_flipped[ix, 0] = -viewpoints[ix, 0] # azimuth
viewpoints_flipped[ix, 1] = viewpoints[ix, 1] # elevation
viewpoints_flipped[ix,
2] = -viewpoints[ix, 2] # in-plane rotation
else:
viewpoints[ix, :] = np.inf
viewpoints_flipped[ix, :] = np.inf
gt_subclasses = np.zeros((num_objs), dtype=np.int32)
gt_subclasses_flipped = np.zeros((num_objs), dtype=np.int32)
subindexes = np.zeros((num_objs, self.num_classes), dtype=np.int32)
subindexes_flipped = np.zeros((num_objs, self.num_classes),
dtype=np.int32)
viewindexes_azimuth = np.zeros((num_objs, self.num_classes),
dtype=np.float32)
viewindexes_azimuth_flipped = np.zeros((num_objs, self.num_classes),
dtype=np.float32)
viewindexes_elevation = np.zeros((num_objs, self.num_classes),
dtype=np.float32)
viewindexes_elevation_flipped = np.zeros((num_objs, self.num_classes),
dtype=np.float32)
viewindexes_rotation = np.zeros((num_objs, self.num_classes),
dtype=np.float32)
viewindexes_rotation_flipped = np.zeros((num_objs, self.num_classes),
dtype=np.float32)
overlaps = scipy.sparse.csr_matrix(overlaps)
subindexes = scipy.sparse.csr_matrix(subindexes)
subindexes_flipped = scipy.sparse.csr_matrix(subindexes_flipped)
viewindexes_azimuth = scipy.sparse.csr_matrix(viewindexes_azimuth)
viewindexes_azimuth_flipped = scipy.sparse.csr_matrix(
viewindexes_azimuth_flipped)
viewindexes_elevation = scipy.sparse.csr_matrix(viewindexes_elevation)
viewindexes_elevation_flipped = scipy.sparse.csr_matrix(
viewindexes_elevation_flipped)
viewindexes_rotation = scipy.sparse.csr_matrix(viewindexes_rotation)
viewindexes_rotation_flipped = scipy.sparse.csr_matrix(
viewindexes_rotation_flipped)
if cfg.IS_RPN:
if cfg.IS_MULTISCALE:
# compute overlaps between grid boxes and gt boxes in multi-scales
# rescale the gt boxes
boxes_all = np.zeros((0, 4), dtype=np.float32)
for scale in cfg.TRAIN.SCALES:
boxes_all = np.vstack((boxes_all, boxes * scale))
gt_classes_all = np.tile(gt_classes, len(cfg.TRAIN.SCALES))
# compute grid boxes
s = PIL.Image.open(self.image_path_from_index(index)).size
image_height = s[1]
image_width = s[0]
boxes_grid, _, _ = get_boxes_grid(image_height, image_width)
# compute overlap
overlaps_grid = bbox_overlaps(boxes_grid.astype(np.float),
boxes_all.astype(np.float))
# check how many gt boxes are covered by grids
if num_objs != 0:
index = np.tile(list(range(num_objs)),
len(cfg.TRAIN.SCALES))
max_overlaps = overlaps_grid.max(axis=0)
fg_inds = []
for k in range(1, self.num_classes):
fg_inds.extend(
np.where((gt_classes_all == k) & (
max_overlaps >= cfg.TRAIN.FG_THRESH[k - 1]))
[0])
index_covered = np.unique(index[fg_inds])
for i in range(self.num_classes):
self._num_boxes_all[i] += len(
np.where(gt_classes == i)[0])
self._num_boxes_covered[i] += len(
np.where(gt_classes[index_covered] == i)[0])
else:
assert len(cfg.TRAIN.SCALES_BASE) == 1
scale = cfg.TRAIN.SCALES_BASE[0]
feat_stride = 16
# faster rcnn region proposal
base_size = 16
ratios = cfg.TRAIN.RPN_ASPECTS
scales = cfg.TRAIN.RPN_SCALES
anchors = generate_anchors(base_size, ratios, scales)
num_anchors = anchors.shape[0]
# image size
s = PIL.Image.open(self.image_path_from_index(index)).size
image_height = s[1]
image_width = s[0]
# height and width of the heatmap
height = np.round((image_height * scale - 1) / 4.0 + 1)
height = np.floor((height - 1) / 2 + 1 + 0.5)
height = np.floor((height - 1) / 2 + 1 + 0.5)
width = np.round((image_width * scale - 1) / 4.0 + 1)
width = np.floor((width - 1) / 2.0 + 1 + 0.5)
width = np.floor((width - 1) / 2.0 + 1 + 0.5)
# gt boxes
gt_boxes = boxes * scale
# 1. Generate proposals from bbox deltas and shifted anchors
shift_x = np.arange(0, width) * feat_stride
shift_y = np.arange(0, height) * feat_stride
shift_x, shift_y = np.meshgrid(shift_x, shift_y)
shifts = np.vstack(
(shift_x.ravel(), shift_y.ravel(), shift_x.ravel(),
shift_y.ravel())).transpose()
# add A anchors (1, A, 4) to
# cell K shifts (K, 1, 4) to get
# shift anchors (K, A, 4)
# reshape to (K*A, 4) shifted anchors
A = num_anchors
K = shifts.shape[0]
all_anchors = (anchors.reshape((1, A, 4)) + shifts.reshape(
(1, K, 4)).transpose((1, 0, 2)))
all_anchors = all_anchors.reshape((K * A, 4))
# compute overlap
overlaps_grid = bbox_overlaps(all_anchors.astype(np.float),
gt_boxes.astype(np.float))
# check how many gt boxes are covered by anchors
if num_objs != 0:
max_overlaps = overlaps_grid.max(axis=0)
fg_inds = []
for k in range(1, self.num_classes):
fg_inds.extend(
np.where((gt_classes == k) & (
max_overlaps >= cfg.TRAIN.FG_THRESH[k - 1]))
[0])
for i in range(self.num_classes):
self._num_boxes_all[i] += len(
np.where(gt_classes == i)[0])
self._num_boxes_covered[i] += len(
np.where(gt_classes[fg_inds] == i)[0])
return {
'boxes': boxes,
'gt_classes': gt_classes,
'gt_viewpoints': viewpoints,
'gt_viewpoints_flipped': viewpoints_flipped,
'gt_viewindexes_azimuth': viewindexes_azimuth,
'gt_viewindexes_azimuth_flipped': viewindexes_azimuth_flipped,
'gt_viewindexes_elevation': viewindexes_elevation,
'gt_viewindexes_elevation_flipped': viewindexes_elevation_flipped,
'gt_viewindexes_rotation': viewindexes_rotation,
'gt_viewindexes_rotation_flipped': viewindexes_rotation_flipped,
'gt_subclasses': gt_subclasses,
'gt_subclasses_flipped': gt_subclasses_flipped,
'gt_overlaps': overlaps,
'gt_subindexes': subindexes,
'gt_subindexes_flipped': subindexes_flipped,
'flipped': False
}
def _load_imagenet3d_annotation(self, index):
"""
Load image and bounding boxes info from txt file in the imagenet3d format.
"""
if self._image_set == 'test' or self._image_set == 'test_1' or self._image_set == 'test_2':
lines = []
else:
filename = os.path.join(self._imagenet3d_path, 'Labels', index + '.txt')
lines = []
with open(filename) as f:
for line in f:
lines.append(line)
num_objs = len(lines)
boxes = np.zeros((num_objs, 4), dtype=np.float32)
viewpoints = np.zeros((num_objs, 3), dtype=np.float32) # azimuth, elevation, in-plane rotation
viewpoints_flipped = np.zeros((num_objs, 3), dtype=np.float32) # azimuth, elevation, in-plane rotation
gt_classes = np.zeros((num_objs), dtype=np.int32)
overlaps = np.zeros((num_objs, self.num_classes), dtype=np.float32)
for ix, line in enumerate(lines):
words = line.split()
assert len(words) == 5 or len(words) == 8, 'Wrong label format: {}'.format(index)
cls = self._class_to_ind[words[0]]
boxes[ix, :] = [float(n) for n in words[1:5]]
gt_classes[ix] = cls
overlaps[ix, cls] = 1.0
if len(words) == 8:
viewpoints[ix, :] = [float(n) for n in words[5:8]]
# flip the viewpoint
viewpoints_flipped[ix, 0] = -viewpoints[ix, 0] # azimuth
viewpoints_flipped[ix, 1] = viewpoints[ix, 1] # elevation
viewpoints_flipped[ix, 2] = -viewpoints[ix, 2] # in-plane rotation
else:
viewpoints[ix, :] = np.inf
viewpoints_flipped[ix, :] = np.inf
gt_subclasses = np.zeros((num_objs), dtype=np.int32)
gt_subclasses_flipped = np.zeros((num_objs), dtype=np.int32)
subindexes = np.zeros((num_objs, self.num_classes), dtype=np.int32)
subindexes_flipped = np.zeros((num_objs, self.num_classes), dtype=np.int32)
viewindexes_azimuth = np.zeros((num_objs, self.num_classes), dtype=np.float32)
viewindexes_azimuth_flipped = np.zeros((num_objs, self.num_classes), dtype=np.float32)
viewindexes_elevation = np.zeros((num_objs, self.num_classes), dtype=np.float32)
viewindexes_elevation_flipped = np.zeros((num_objs, self.num_classes), dtype=np.float32)
viewindexes_rotation = np.zeros((num_objs, self.num_classes), dtype=np.float32)
viewindexes_rotation_flipped = np.zeros((num_objs, self.num_classes), dtype=np.float32)
overlaps = scipy.sparse.csr_matrix(overlaps)
subindexes = scipy.sparse.csr_matrix(subindexes)
subindexes_flipped = scipy.sparse.csr_matrix(subindexes_flipped)
viewindexes_azimuth = scipy.sparse.csr_matrix(viewindexes_azimuth)
viewindexes_azimuth_flipped = scipy.sparse.csr_matrix(viewindexes_azimuth_flipped)
viewindexes_elevation = scipy.sparse.csr_matrix(viewindexes_elevation)
viewindexes_elevation_flipped = scipy.sparse.csr_matrix(viewindexes_elevation_flipped)
viewindexes_rotation = scipy.sparse.csr_matrix(viewindexes_rotation)
viewindexes_rotation_flipped = scipy.sparse.csr_matrix(viewindexes_rotation_flipped)
if cfg.IS_RPN:
if cfg.IS_MULTISCALE:
# compute overlaps between grid boxes and gt boxes in multi-scales
# rescale the gt boxes
boxes_all = np.zeros((0, 4), dtype=np.float32)
for scale in cfg.TRAIN.SCALES:
boxes_all = np.vstack((boxes_all, boxes * scale))
gt_classes_all = np.tile(gt_classes, len(cfg.TRAIN.SCALES))
# compute grid boxes
s = PIL.Image.open(self.image_path_from_index(index)).size
image_height = s[1]
image_width = s[0]
boxes_grid, _, _ = get_boxes_grid(image_height, image_width)
# compute overlap
overlaps_grid = bbox_overlaps(boxes_grid.astype(np.float), boxes_all.astype(np.float))
# check how many gt boxes are covered by grids
if num_objs != 0:
index = np.tile(range(num_objs), len(cfg.TRAIN.SCALES))
max_overlaps = overlaps_grid.max(axis = 0)
fg_inds = []
for k in xrange(1, self.num_classes):
fg_inds.extend(np.where((gt_classes_all == k) & (max_overlaps >= cfg.TRAIN.FG_THRESH[k-1]))[0])
index_covered = np.unique(index[fg_inds])
for i in xrange(self.num_classes):
self._num_boxes_all[i] += len(np.where(gt_classes == i)[0])
self._num_boxes_covered[i] += len(np.where(gt_classes[index_covered] == i)[0])
else:
assert len(cfg.TRAIN.SCALES_BASE) == 1
scale = cfg.TRAIN.SCALES_BASE[0]
feat_stride = 16
# faster rcnn region proposal
base_size = 16
ratios = cfg.TRAIN.RPN_ASPECTS
scales = cfg.TRAIN.RPN_SCALES
anchors = generate_anchors(base_size, ratios, scales)
num_anchors = anchors.shape[0]
# image size
s = PIL.Image.open(self.image_path_from_index(index)).size
image_height = s[1]
image_width = s[0]
# height and width of the heatmap
height = np.round((image_height * scale - 1) / 4.0 + 1)
height = np.floor((height - 1) / 2 + 1 + 0.5)
height = np.floor((height - 1) / 2 + 1 + 0.5)
width = np.round((image_width * scale - 1) / 4.0 + 1)
width = np.floor((width - 1) / 2.0 + 1 + 0.5)
width = np.floor((width - 1) / 2.0 + 1 + 0.5)
# gt boxes
gt_boxes = boxes * scale
# 1. Generate proposals from bbox deltas and shifted anchors
shift_x = np.arange(0, width) * feat_stride
shift_y = np.arange(0, height) * feat_stride
shift_x, shift_y = np.meshgrid(shift_x, shift_y)
shifts = np.vstack((shift_x.ravel(), shift_y.ravel(),
shift_x.ravel(), shift_y.ravel())).transpose()
# add A anchors (1, A, 4) to
# cell K shifts (K, 1, 4) to get
# shift anchors (K, A, 4)
# reshape to (K*A, 4) shifted anchors
A = num_anchors
K = shifts.shape[0]
all_anchors = (anchors.reshape((1, A, 4)) + shifts.reshape((1, K, 4)).transpose((1, 0, 2)))
all_anchors = all_anchors.reshape((K * A, 4))
# compute overlap
overlaps_grid = bbox_overlaps(all_anchors.astype(np.float), gt_boxes.astype(np.float))
# check how many gt boxes are covered by anchors
if num_objs != 0:
max_overlaps = overlaps_grid.max(axis = 0)
fg_inds = []
for k in xrange(1, self.num_classes):
fg_inds.extend(np.where((gt_classes == k) & (max_overlaps >= cfg.TRAIN.FG_THRESH[k-1]))[0])
for i in xrange(self.num_classes):
self._num_boxes_all[i] += len(np.where(gt_classes == i)[0])
self._num_boxes_covered[i] += len(np.where(gt_classes[fg_inds] == i)[0])
return {'boxes' : boxes,
'gt_classes': gt_classes,
'gt_viewpoints': viewpoints,
'gt_viewpoints_flipped': viewpoints_flipped,
'gt_viewindexes_azimuth': viewindexes_azimuth,
'gt_viewindexes_azimuth_flipped': viewindexes_azimuth_flipped,
'gt_viewindexes_elevation': viewindexes_elevation,
'gt_viewindexes_elevation_flipped': viewindexes_elevation_flipped,
'gt_viewindexes_rotation': viewindexes_rotation,
'gt_viewindexes_rotation_flipped': viewindexes_rotation_flipped,
'gt_subclasses': gt_subclasses,
'gt_subclasses_flipped': gt_subclasses_flipped,
'gt_overlaps' : overlaps,
'gt_subindexes': subindexes,
'gt_subindexes_flipped': subindexes_flipped,
'flipped' : False}