def main(args):
cameras, images, points3D = read_model(args.input, '.bin')
if not os.path.exists(args.image_output):
os.makedirs(args.image_output)
if not os.path.exists(args.model_output):
os.makedirs(args.model_output)
new_cameras, new_images = crop_image(cameras, images, args)
write_model(new_cameras, new_images, points3D, args.model_output, '.bin')
def main():
import sys
if len(sys.argv) != 3:
print("Usage: python read_model.py "
"path/to/model/folder/txt path/to/model/folder/bin")
return
print("Comparing text and binary models ...")
path_to_model_txt_folder = sys.argv[1]
path_to_model_bin_folder = sys.argv[2]
cameras_txt, images_txt, points3D_txt = \
read_model(path_to_model_txt_folder, ext=".txt")
cameras_bin, images_bin, points3D_bin = \
read_model(path_to_model_bin_folder, ext=".bin")
compare_cameras(cameras_txt, cameras_bin)
compare_images(images_txt, images_bin)
compare_points(points3D_txt, points3D_bin)
print("... text and binary models are equal.")
print("Saving text model and reloading it ...")
tmpdir = mkdtemp()
write_model(cameras_bin, images_bin, points3D_bin, tmpdir, ext='.txt')
cameras_txt, images_txt, points3D_txt = \
read_model(tmpdir, ext=".txt")
compare_cameras(cameras_txt, cameras_bin)
compare_images(images_txt, images_bin)
compare_points(points3D_txt, points3D_bin)
print("... saved text and loaded models are equal.")
print("Saving binary model and reloading it ...")
write_model(cameras_bin, images_bin, points3D_bin, tmpdir, ext='.bin')
cameras_bin, images_bin, points3D_bin = \
read_model(tmpdir, ext=".bin")
compare_cameras(cameras_txt, cameras_bin)
compare_images(images_txt, images_bin)
compare_points(points3D_txt, points3D_bin)
print("... saved binary and loaded models are equal.")
def take_steamvr_images(save_dir, num_images, delay_between_images):
plt.show()
openvr.init(openvr.VRApplication_Scene)
convert_coordinate_system = np.identity(4)
convert_coordinate_system[:3, :3] = Rotation.from_euler(
'XYZ', (180, 0, 0), degrees=True).as_matrix()
device = openvr.k_unTrackedDeviceIndex_Hmd
num_cameras = openvr.VRSystem().getInt32TrackedDeviceProperty(
device, openvr.Prop_NumCameras_Int32)
camera_to_head_mat = (openvr.HmdMatrix34_t * num_cameras)()
openvr.VRSystem().getArrayTrackedDeviceProperty(
device, openvr.Prop_CameraToHeadTransforms_Matrix34_Array,
openvr.k_unHmdMatrix34PropertyTag, camera_to_head_mat,
48 * num_cameras)
cam = openvr.VRTrackedCamera()
cam_handle = cam.acquireVideoStreamingService(device)
width, height, buffer_size = cam.getCameraFrameSize(
device, openvr.VRTrackedCameraFrameType_MaximumUndistorted)
fig = plt.figure()
ax = fig.add_subplot(111, projection='3d')
ax.set_xlabel('x axis - metres')
ax.set_ylabel('z axis - metres')
ax.set_zlabel('y axis - metres')
ax.set_xlim(-0.5, 0.5)
ax.set_ylim(-0.5, 0.5)
ax.set_zlim(0, 1)
save_dir = ColmapFolder(save_dir)
db = COLMAPDatabase.connect(save_dir.database_path)
db.create_tables()
init_params = np.array(
(420.000000, (width / num_cameras) / 2, height / 2, 0.000000))
camera_model = CAMERA_MODEL_NAMES['SIMPLE_RADIAL']
cameras = {}
camera_to_head_transforms = {}
for i in range(num_cameras):
cam_id = db.add_camera(camera_model.model_id, width / 2, height,
init_params)
camera_to_head_transforms[cam_id] = hmd_matrix_to_numpy(
camera_to_head_mat[i])
cameras[cam_id] = Camera(id=cam_id,
model=camera_model.model_name,
width=width / num_cameras,
height=height,
params=init_params)
poses = [] # Let waitGetPoses populate the poses structure the first time
cam_positions = []
images = []
for i in range(num_images):
poses, game_poses = openvr.VRCompositor().waitGetPoses(poses, None)
hmd_pose = poses[openvr.k_unTrackedDeviceIndex_Hmd]
if not hmd_pose.bPoseIsValid:
print("Pose not valid")
continue
world_to_head = hmd_matrix_to_numpy(hmd_pose.mDeviceToAbsoluteTracking)
world_to_cams = {
id_: world_to_head @ head_to_cam @ convert_coordinate_system
for (id_, head_to_cam) in camera_to_head_transforms.items()
}
image_buffer = (ctypes.c_ubyte * buffer_size)()
try:
cam.getVideoStreamFrameBuffer(
cam_handle, openvr.VRTrackedCameraFrameType_MaximumUndistorted,
image_buffer, buffer_size)
except:
print("Error getting video stream buffer")
continue
image_array = np.array(image_buffer)
image_array = image_array.reshape((height, width, 4))
image_array = image_array[:, :, 0:3]
image_array = np.clip(image_array, 0, 255)
for j, (cam_id, world_to_cam) in enumerate(world_to_cams.items()):
image = Image.fromarray(
image_array[:,
int(width / num_cameras) *
j:int(width / num_cameras) * (j + 1), :])
name = f"{i:03d}_cam{j}.jpg"
image.save(save_dir.images_path / name)
image_obj = read_write_model.Image(
camera_id=cam_id,
name=name,
transformation_matrix=world_to_cam)
images.append(image_obj)
draw_axes(ax, transform_mat=world_to_cam)
fig.show()
fig.canvas.draw()
fig.canvas.flush_events()
time.sleep(delay_between_images)
print(f"Picture taken :{i}")
image_dict = {}
print("All pictures taken")
with open(save_dir.geo_reg_path, 'w') as geo_reg_file:
for image in images:
image_id = db.add_image(image=image)
image.id = image_id
image_dict[image_id] = image
geo_reg_file.write(
f"{name} {' '.join(map(str, image.transformation_matrix[0:3, 3]))}\n"
)
read_write_model.write_model(cameras, image_dict, {}, save_dir.sparse_path,
'.txt')
db.commit()
db.close()
print("Metadata saved")
openvr.shutdown()
plt.show()
sh_x_train.set_value(train_x[s1])
sh_y_train.set_value(train_y_one_hot[s1])
#sh_y_target_train.set_value(train_y[s])
train_cost, predictions_train = train_epoch(lr)
train_acc = np.sum(predictions_train==train_y[s1])/train_x.shape[0]
#print("sh_y_target_train shape : ", np.shape(train_y[s1]))
s2 = np.arange(test_x.shape[0])
np.random.shuffle(s2)
sh_x_test.set_value(test_x[s2])
sh_y_test.set_value(test_y_one_hot[s2])
test_cost, predictions_test = test_epoch()
test_acc = np.sum(predictions_test==test_y[s2])/test_x.shape[0]
t = time.time() - start
line = "*Epoch: %i\tTime: %0.2f\tLL Train: %0.3f\tLL test: %0.3f\tLL Train accuracy: %0.3f\tLL test accuracy: %0.3f\t" % ( epoch, t, train_cost, test_cost, train_acc, test_acc)
#line = "*Epoch: %i\tTime: %0.2f\tLL Train: %0.3f\tLL test: %0.3f\t" % ( epoch, t, train_cost, test_cost)
print (line)
print ("Write model data")
write_model(l_cls_output, model_filename_write)
else:
read_model(l_cls_output, model_filename_read)
def main(args):
start_timer = timer()
extrinsics = {}
model_extension = ''
if detect_model(args.input, '.bin'):
output_extension = '.bin'
elif detect_model(args.input, '.txt'):
output_extension = '.txt'
else:
raise RuntimeError(
'Cannot find colmap sparse model. please check input path')
cameras, images, points3D = read_model(args.input, output_extension)
num_arc = 0
num_ring = 0
# read colmap images and get rotation and translation
for image_id in images:
arc, ring = parse_filename(args.pattern, images[image_id][4])
if arc not in extrinsics:
extrinsics[arc] = {}
qvec = images[image_id][1]
rotation = Rotation.from_quat([qvec[1], qvec[2], qvec[3], qvec[0]])
extrinsics[arc][ring] = {
'rotation': rotation.as_matrix(),
'translation': images[image_id][2].copy()
}
#find number of arc and number of ring
if arc + 1 > num_arc:
num_arc = arc + 1
if ring + 1 > num_ring:
num_ring = ring + 1
# find camera position in most bottom ring
base_ring = np.zeros((num_ring, 3))
for i in range(num_ring):
base_ring[i] = camera_position(extrinsics[0][i])
mean_shift = np.mean(base_ring, axis=0)
# update extrinsic (translation only)
for i in range(num_arc):
for j in range(num_ring):
extrinsics[i][j]['translation'] -= np.matmul(
extrinsics[i][j]['rotation'], mean_shift)
#we use only most bottom camera to optimize
rotation_matrix = np.zeros((num_ring, 3, 3))
translation_vector = np.zeros((num_ring, 3))
for i in range(num_ring):
rotation_matrix[i, :, :] = extrinsics[0][i]['rotation']
translation_vector[i, :] = extrinsics[0][i]['translation']
# optimize to find rotaiton corrector
rotation_corrector = find_rotation_corrector(rotation_matrix,
translation_vector)
# update extrinsic (rotation only)
for i in range(num_arc):
for j in range(num_ring):
extrinsics[i][j]['rotation'] = np.matmul(
extrinsics[i][j]['rotation'], rotation_corrector)
# update colmap's images
images_old = images
images = {}
for image_id in images_old:
arc, ring = parse_filename(args.pattern, images_old[image_id][4])
rotation = Rotation.from_matrix(extrinsics[arc][ring]['rotation'])
q = rotation.as_quat()
qvec = np.array([q[3], q[0], q[1], q[2]])
images[image_id] = Image(id=image_id,
qvec=qvec,
tvec=extrinsics[arc][ring]['translation'],
camera_id=images_old[image_id][3],
name=images_old[image_id][4],
xys=images_old[image_id][5],
point3D_ids=images_old[image_id][6])
#update colmap's point3d
points3D_old = points3D
points3D = {}
for point_id in points3D_old:
points3D[point_id] = Point3D(
id=points3D_old[point_id][0],
xyz=np.matmul(rotation_corrector.T,
points3D_old[point_id][1] + mean_shift),
rgb=points3D_old[point_id][2],
error=points3D_old[point_id][3],
image_ids=points3D_old[point_id][4],
point2D_idxs=points3D_old[point_id][5])
#write to binary output
if not os.path.exists(args.output):
os.mkdir(args.output)
write_model(cameras, images, points3D, args.output, output_extension)
total_time = timer() - start_timer
print('Finished in {:.2f} seconds'.format(total_time))
print('output are write to {}'.format(os.path.abspath(args.output)))
#shuffle train data, train model and test model
np.random.shuffle(train_x)
sh_x_train.set_value(train_x)
train_cost = train_epoch(lr)
test_cost = test_epoch()
t = time.time() - start
line = "*Epoch: %i\tTime: %0.2f\tLR: %0.5f\tLL Train: %0.3f\tLL test: %0.3f\t" % (
epoch, t, lr, train_cost, test_cost)
print(line)
print("Write model data")
write_model(l_dec_x, model_filename)
else:
read_model(l_dec_x, model_filename)
# In[12]:
#try:
# import cPickle as pkl
#except:
#import pickle as pkl
#with open("./params/mnist_model.params", 'rb') as f1:
# data1 = pkl.load(f1, encoding = 'latin1')
# In[13]:
def main(args):
cameras, images = readCameraDeepview(args.input)
print(len(cameras))
exit()
write_model(cameras, images, {}, 'output/', '.bin')
sh_x_train.set_value(train_x)
sh_x_desired_train.set_value(train_x)
sh_x_test.set_value(test_x)
sh_x_desired_test.set_value(test_x)
train_cost = train_epoch(lr)
test_cost = test_epoch()
t = time.time() - start
line = "*Epoch: %i\tTime: %0.2f\tLR: %0.5f\tLL Train: %0.3f\tLL test: %0.3f\t" % (
epoch, t, lr, train_cost, test_cost)
print(line)
print("Write model data")
write_model([l_dec_x_mu], model_filename)
else:
read_model([l_dec_x_mu], model_filename)
def show_mnist(img, i, title=""): # expects flattened image of shape (3072,)
img = img.copy().reshape(28, 28)
img = np.clip(img, 0, 1)
plt.subplot(2, 3, i)
plt.imshow(img, cmap='Greys_r')
plt.title(title)
plt.axis("off")
def mnist_input(img):
return np.tile(img, (batch_size, 1, 1, 1)).reshape(batch_size, 784)