def get_uvd(image_dir, laser_dir, poses_file, models_dir, extrinsics_dir, image_idx):
model = CameraModel(models_dir, image_dir)
extrinsics_path = os.path.join(extrinsics_dir, model.camera + '.txt')
with open(extrinsics_path) as extrinsics_file:
extrinsics = [float(x) for x in next(extrinsics_file).split(' ')]
G_camera_vehicle = build_se3_transform(extrinsics)
G_camera_posesource = None
poses_type = re.search('(vo|ins|rtk)\.csv', poses_file).group(1)
if poses_type in ['ins', 'rtk']:
with open(os.path.join(extrinsics_dir, 'ins.txt')) as extrinsics_file:
extrinsics = next(extrinsics_file)
G_camera_posesource = G_camera_vehicle * build_se3_transform([float(x) for x in extrinsics.split(' ')])
else:
# VO frame and vehicle frame are the same
G_camera_posesource = G_camera_vehicle
timestamps_path = os.path.join(image_dir, os.pardir, model.camera + '.timestamps')
if not os.path.isfile(timestamps_path):
timestamps_path = os.path.join(image_dir, os.pardir, os.pardir, model.camera + '.timestamps')
timestamp = 0
with open(timestamps_path) as timestamps_file:
for i, line in enumerate(timestamps_file):
if i == image_idx:
timestamp = int(line.split(' ')[0])
pointcloud, reflectance = build_pointcloud(laser_dir, poses_file, extrinsics_dir,
timestamp - 1e7, timestamp + 1e7, timestamp)
pointcloud = np.dot(G_camera_posesource, pointcloud)
#print(pointcloud)
#print('pose', G_camera_posesource.shape)
#print('pc', pointcloud[0].shape)
image_path = os.path.join(image_dir, str(timestamp) + '.png')
image = load_image(image_path, model)
uv, depth = model.project(pointcloud, image.shape)
# plt.imshow(image)
# plt.scatter(np.ravel(uv[0, :]), np.ravel(uv[1, :]), s=2, c=depth, edgecolors='none', cmap='jet')
# plt.xlim(0, image.shape[1])
# plt.ylim(image.shape[0], 0)
# plt.xticks([])
# plt.yticks([])
# plt.show()
return uv, depth, timestamp, model
def makeCroppedGraySequence(seq_id, num_threads=8):
src_folder = os.path.join(symlink('robotcar'), seq_id)
dst_folder = os.path.join(symlink('robotcar_cropped_gray'), seq_id)
if not os.path.exists(dst_folder):
os.makedirs(dst_folder)
# Convert images.
stereo_dir = os.path.join(src_folder, 'stereo')
for leftright in ['left', 'right']:
in_dir = os.path.join(stereo_dir, leftright)
images = utils_path.imagesFromDir(in_dir, extension='.png')
im_names = [os.path.basename(i) for i in images]
cam_model = camera_model.CameraModel(cam_model_dir, in_dir)
out_dir = os.path.join(dst_folder, 'rect', leftright)
if not os.path.exists(out_dir):
os.makedirs(out_dir)
p = multiprocessing.Pool(num_threads)
print('Converting %s...' % leftright)
p.map(ParallelImageConverter(cam_model, in_dir, out_dir, im_names),
range(len(images)))
# K files
# Image downscaling affects camera intrinsics
f = [0.5 * x for x in cam_model.focal_length]
c = [0.5 * x for x in cam_model.principal_point]
K = np.array([[f[0], 0, c[0]], [0, f[1], c[1]], [0, 0, 1]])
np.savetxt(os.path.join(dst_folder, '%s_K.txt' % leftright), K)
times = [int(i[:16]) for i in im_names]
# Get poses everywhere.
T_W_C_file = os.path.join(dst_folder, 'T_W_C.txt')
if not os.path.exists(T_W_C_file):
print('Interpolating poses...')
insext = np.loadtxt(os.path.join(sdk_dir, 'extrinsics',
'ins.txt')).tolist()
mtx = transform.build_se3_transform(insext)
# Cx: Oxford style camera, where x looks into the image plane.
T_I_Cx = pose.fromMatrix(np.asarray(mtx)).inverse()
T_Cx_C = pose.yRotationDeg(90) * pose.zRotationDeg(90)
T_I_C = T_I_Cx * T_Cx_C
# T_W_I0: Because in Oxford, z looks down.
T_W_I0 = pose.xRotationDeg(180)
ins_path = os.path.join(src_folder, 'gps', 'ins.csv')
T_I0_I = interpolate_poses.interpolate_ins_poses(
ins_path, times, times[0])
T_I0_I = [pose.fromMatrix(np.asarray(i)) for i in T_I0_I]
T_W_C = [T_W_I0 * i * T_I_C for i in T_I0_I]
T_W_C_serialized = np.array([i.asArray().ravel() for i in T_W_C])
np.savetxt(T_W_C_file, T_W_C_serialized)
def compute_vo_poses(vo_path, pose_timestamps, origin_timestamp):
"""Interpolate poses from visual odometry.
Args:
vo_path (str): path to file containing relative poses from visual odometry.
pose_timestamps (list[int]): UNIX timestamps at which interpolated poses are required.
origin_timestamp (int): UNIX timestamp of origin frame. Poses will be reported relative to this frame.
Returns:
list[numpy.matrixlib.defmatrix.matrix]: SE3 matrix representing interpolated pose for each requested timestamp.
"""
with open(vo_path) as vo_file:
vo_reader = csv.reader(vo_file)
headers = next(vo_file)
vo_timestamps = [0]
changetoDSOcoord = np.matrix('0 1 0 0; 0 0 -1 0; 1 0 0 0; 0 0 0 1')
#changetoDSOcoord = changetoDSOcoord.transpose()
#changetoDSOcoord = np.matrix('0 0 1 0; 1 0 0 0; 0 1 0 0; 0 0 0 1')
#changetoDSOcoord = np.matrix('0 0 1 0; 0 1 0 0; 1 0 0 0; 0 0 0 1') false
#changetoDSOcoord = np.matrix('0 1 0 0; 1 0 0 0; 0 0 1 0; 0 0 0 1') false
#changetoDSOcoord = np.matrix('0 0 1 0; -1 0 0 0; 0 1 0 0; 0 0 0 1')
#R2 = np.matrix('0 1 0; 0 0 1; 1 0 0')
abs_poses = [ml.identity(4)]
abs_poses[0] = np.dot(changetoDSOcoord, abs_poses[0])
lower_timestamp = min(min(pose_timestamps), origin_timestamp)
upper_timestamp = max(max(pose_timestamps), origin_timestamp)
print("lower timestamp, ", lower_timestamp)
print("upper timestamp, ", upper_timestamp)
for row in vo_reader:
timestamp = int(row[0])
if timestamp < lower_timestamp:
vo_timestamps[0] = timestamp
continue
vo_timestamps.append(timestamp)
xyzrpy = [float(v) for v in row[2:8]]
rel_pose = build_se3_transform(xyzrpy)
abs_pose = abs_poses[-1] * rel_pose
#changetoDSOcoord = np.matrix('0 1 0 0; 0 0 -1 0; 1 0 0 0; 0 0 0 1')
#abs_pose = np.dot(changetoDSOcoord,abs_pose)
#abs_posecopy = copy.deepcopy(abs_pose)
#abs_posecopy[0,3],abs_posecopy[1,3],abs_posecopy[2,3]=abs_pose[2,3],abs_pose[0,3],abs_pose[1,3]
abs_poses.append(abs_pose)
if timestamp >= upper_timestamp:
break
abs_poses[0] = np.dot(changetoDSOcoord, abs_poses[0])
return abs_poses
def init_camera_model_posture():
global CAMERA_MODEL
global G_CAMERA_POSESOURCE
models_dir = "/data/lyh/lab/robotcar-dataset-sdk/models/"
CAMERA_MODEL = CameraModel(models_dir, "stereo_centre")
#read the camera and ins extrinsics
extrinsics_path = "/data/lyh/lab/robotcar-dataset-sdk/extrinsics/stereo.txt"
print(extrinsics_path)
with open(extrinsics_path) as extrinsics_file:
extrinsics = [float(x) for x in next(extrinsics_file).split(' ')]
G_camera_vehicle = build_se3_transform(extrinsics)
print(G_camera_vehicle)
extrinsics_path = "/data/lyh/lab/robotcar-dataset-sdk/extrinsics/ins.txt"
print(extrinsics_path)
with open(extrinsics_path) as extrinsics_file:
extrinsics = [float(x) for x in next(extrinsics_file).split(' ')]
G_ins_vehicle = build_se3_transform(extrinsics)
print(G_ins_vehicle)
G_CAMERA_POSESOURCE = G_camera_vehicle * G_ins_vehicle
def compute_ins_poses(ins_path, pose_timestamps, origin_timestamp):
"""Interpolate poses from visual odometry.
ins_path (str): path to file containing poses from INS.
pose_timestamps (list[int]): UNIX timestamps at which interpolated poses are required.
origin_timestamp (int): UNIX timestamp of origin frame. Poses will be reported relative to this frame.
Returns:
list[numpy.matrixlib.defmatrix.matrix]: SE3 matrix representing interpolated pose for each requested timestamp.
"""
with open(ins_path) as ins_file:
ins_reader = csv.reader(ins_file)
headers = next(ins_file)
ins_timestamps = [0]
abs_poses = [ml.identity(4)]
#abs_poses[0] = np.dot(changetoDSOcoord, abs_poses[0])
lower_timestamp = min(min(pose_timestamps), origin_timestamp)
upper_timestamp = max(max(pose_timestamps), origin_timestamp)
for row in ins_reader:
timestamp = int(row[0])
if timestamp < lower_timestamp:
ins_timestamps[0] = timestamp
continue
ins_timestamps.append(timestamp)
xyzrpy = [float(v)
for v in row[5:8]] + [float(v) for v in row[-3:]]
abs_pose = build_se3_transform(xyzrpy)
abs_poses.append(abs_pose)
if timestamp >= upper_timestamp:
break
ins_timestamps = ins_timestamps[1:]
abs_poses = abs_poses[1:]
print(len(pose_timestamps))
print("ins timestamps", len(ins_timestamps))
#poses = interpolate_poses(ins_timestamps, abs_poses, pose_timestamps, origin_timestamp)
#print(len(poses))
changetoDSOcoord = np.matrix('1 0 0 0; 0 0 -1 0; 0 1 0 0; 0 0 0 1')
poses_trans = [changetoDSOcoord * i for i in abs_poses]
return abs_poses, ins_timestamps
def ProcessFrame(params, Tprev, frame_nr,
stamp): # write Fibonacci series up to n
#time=gt_row(0) #time is in nanoseconds
#t.header.stamp = rospy.Time(time)
#t.header.frame_id = "/world"
#t.child_frame_id = "/navtech"
Tinc = build_se3_transform(params)
Tupd = Tprev * Tinc
#print("input: ")
#print(params)
#print("prev: ")
#print(Tprev)
#print("inc: ")
#print(Tinc)
#print("Tupd: ")
#print(Tupd)
#print("ros time: ")
#print(stamp)
t = geometry_msgs.msg.TransformStamped()
t.header.frame_id = "/world"
t.header.stamp = stamp
t.child_frame_id = "/navtech"
t.transform.translation.x = Tupd[0, 3]
t.transform.translation.y = Tupd[1, 3]
t.transform.translation.z = 0.0
#print(t.transform.translation)
qupd = so3_to_quaternion(Tupd[0:3, 0:3])
t.transform.rotation.x = qupd[1]
t.transform.rotation.y = qupd[2]
t.transform.rotation.z = qupd[3]
t.transform.rotation.w = qupd[0]
return Tupd, t
else:
raise ValueError('Wrong camera type', args.camera)
if use_processed:
pass
else:
i_img, submap = generate_vo_submap(args)
# Get camera transformation
with open(camera_extrinsics) as extrinsics_file:
extrinsics = [float(x) for x in next(extrinsics_file).split(' ')]
G_camera_vehicle = build_se3_transform(extrinsics)
submap = np.dot(G_camera_vehicle, submap)
# Load image
img_data = import_camera_trajectory(camera_timestamp_file, ins_data_file,
camera_dir)
camera_trajectory, camera_model = img_data[0], img_data[1]
camera_state = camera_trajectory[:,i_img] #Was i_start, not correct?
image, pil_image = load_image(camera_dir, camera_state[6], camera_model)
# Project points into image
uv, depth = camera_model.project(submap, image.shape)
# Get ratio of points in image to total points
points_in_image_ratio = uv.shape[1] / submap.shape[1]
def build_pointcloud(lidar_dir,
poses_file,
extrinsics_dir,
start_time,
end_time,
origin_time=-1):
"""Builds a pointcloud by combining multiple LIDAR scans with odometry information.
Args:
lidar_dir (str): Directory containing LIDAR scans.
poses_file (str): Path to a file containing pose information. Can be VO or INS data.
extrinsics_dir (str): Directory containing extrinsic calibrations.
start_time (int): UNIX timestamp of the start of the window over which to build the pointcloud.
end_time (int): UNIX timestamp of the end of the window over which to build the pointcloud.
origin_time (int): UNIX timestamp of origin frame. Pointcloud coordinates are relative to this frame.
Returns:
numpy.ndarray: 3xn array of (x, y, z) coordinates of pointcloud
numpy.array: array of n reflectance values or None if no reflectance values are recorded (LDMRS)
Raises:
ValueError: if specified window doesn't contain any laser scans.
IOError: if scan files are not found.
"""
if origin_time < 0:
origin_time = start_time
lidar = re.search(
'(lms_front|lms_rear|ldmrs|velodyne_left|velodyne_right)',
lidar_dir).group(0)
timestamps_path = os.path.join(lidar_dir, os.pardir, lidar + '.timestamps')
timestamps = []
with open(timestamps_path) as timestamps_file:
for line in timestamps_file:
timestamp = int(line.split(' ')[0])
if start_time <= timestamp <= end_time:
timestamps.append(timestamp)
if len(timestamps) == 0:
raise ValueError("No LIDAR data in the given time bracket.")
with open(os.path.join(extrinsics_dir, lidar + '.txt')) as extrinsics_file:
extrinsics = next(extrinsics_file)
G_posesource_laser = build_se3_transform(
[float(x) for x in extrinsics.split(' ')])
poses_type = re.search('(vo|ins|rtk)\.csv', poses_file).group(1)
if poses_type in ['ins', 'rtk']:
with open(os.path.join(extrinsics_dir, 'ins.txt')) as extrinsics_file:
extrinsics = next(extrinsics_file)
G_posesource_laser = np.linalg.solve(
build_se3_transform([float(x) for x in extrinsics.split(' ')]),
G_posesource_laser)
poses = interpolate_ins_poses(poses_file,
timestamps,
origin_time,
use_rtk=(poses_type == 'rtk'))
else:
# sensor is VO, which is located at the main vehicle frame
poses = interpolate_vo_poses(poses_file, timestamps, origin_time)
pointcloud = np.array([[0], [0], [0], [0]])
if lidar == 'ldmrs':
reflectance = None
else:
reflectance = np.empty((0))
for i in range(0, len(poses)):
scan_path = os.path.join(lidar_dir, str(timestamps[i]) + '.bin')
if "velodyne" not in lidar:
if not os.path.isfile(scan_path):
continue
scan_file = open(scan_path)
scan = np.fromfile(scan_file, np.double)
scan_file.close()
scan = scan.reshape((len(scan) // 3, 3)).transpose()
if lidar != 'ldmrs':
# LMS scans are tuples of (x, y, reflectance)
reflectance = np.concatenate(
(reflectance, np.ravel(scan[2, :])))
scan[2, :] = np.zeros((1, scan.shape[1]))
else:
if os.path.isfile(scan_path):
ptcld = load_velodyne_binary(scan_path)
else:
scan_path = os.path.join(lidar_dir,
str(timestamps[i]) + '.png')
if not os.path.isfile(scan_path):
continue
ranges, intensities, angles, approximate_timestamps = load_velodyne_raw(
scan_path)
ptcld = velodyne_raw_to_pointcloud(ranges, intensities, angles)
reflectance = np.concatenate((reflectance, ptcld[3]))
scan = ptcld[:3]
scan = np.dot(np.dot(poses[i], G_posesource_laser),
np.vstack([scan, np.ones((1, scan.shape[1]))]))
pointcloud = np.hstack([pointcloud, scan])
pointcloud = pointcloud[:, 1:]
if pointcloud.shape[1] == 0:
raise IOError(
"Could not find scan files for given time range in directory " +
lidar_dir)
return pointcloud, reflectance
if reflectance is not None:
colours = (reflectance - reflectance.min()) / (reflectance.max() -
reflectance.min())
colours = 1 / (1 + np.exp(-10 * (colours - colours.mean())))
else:
colours = 'gray'
# Pointcloud Visualisation using Open3D
vis = open3d.Visualizer()
vis.create_window(window_name=os.path.basename(__file__))
render_option = vis.get_render_option()
render_option.background_color = np.array([0.1529, 0.1569, 0.1333],
np.float32)
render_option.point_color_option = open3d.PointColorOption.ZCoordinate
coordinate_frame = open3d.geometry.create_mesh_coordinate_frame()
vis.add_geometry(coordinate_frame)
pcd = open3d.geometry.PointCloud()
pcd.points = open3d.utility.Vector3dVector(-np.ascontiguousarray(
pointcloud[[1, 0, 2]].transpose().astype(np.float64)))
pcd.colors = open3d.utility.Vector3dVector(
np.tile(colours[:, np.newaxis], (1, 3)).astype(np.float64))
# Rotate pointcloud to align displayed coordinate frame colouring
pcd.transform(build_se3_transform([0, 0, 0, np.pi, 0, -np.pi / 2]))
vis.add_geometry(pcd)
view_control = vis.get_view_control()
params = view_control.convert_to_pinhole_camera_parameters()
params.extrinsic = build_se3_transform(
[0, 3, 10, 0, -np.pi * 0.42, -np.pi / 2])
view_control.convert_from_pinhole_camera_parameters(params)
vis.run()
pub_polar = rospy.Publisher('/Navtech/Polar', Image,queue_size=10)
radar_timestamps = np.loadtxt(timestamps_path, delimiter=' ', usecols=[0], dtype=np.int64)
GtPoseStamps=[]
stamp = rospy.Time.now()
with open(gt_path, newline='') as csv_file: #Read radar csv file
csv_reader = csv.reader(csv_file, delimiter=',')
line_count = 0
for row in csv_reader:
GtPoseStamps.append(row)
current_frame = 0
pose_init = [0,0,0,0,0,0]
Tpose = build_se3_transform(pose_init)
curr_row = GtPoseStamps[1]
#stamp = rospy.Time.from_sec(int(curr_row[1])/1000000)
for radar_timestamp in radar_timestamps:
if current_frame == len(GtPoseStamps) :
break
#if current_frame == 240 :
# bw.Close()
# quit()
filename = os.path.join(args.dir, str(radar_timestamp) + '.png')
if not os.path.isfile(filename):
raise FileNotFoundError("Could not find radar example: {}".format(filename))
def main():
args = get_arguments()
camera = re.search('(stereo|mono_(left|right|rear))', args.dir).group(0)
timestamps_path = os.path.join(
os.path.join(args.dir, os.pardir, camera + '.timestamps'))
if not os.path.isfile(timestamps_path):
timestamps_path = os.path.join(args.dir, os.pardir, os.pardir,
camera + '.timestamps')
if not os.path.isfile(timestamps_path):
raise IOError("Could not find timestamps file")
model = None
if args.models_dir:
model = CameraModel(args.models_dir, args.dir)
output_dir = os.curdir
if args.output_dir:
output_dir = args.output_dir
if not os.path.isdir(output_dir):
raise IOError(output_dir + "is not an existing folder")
result_list = []
count = 0
dictionary = {}
t_records = []
p_records = []
angles_records = []
intrinsic_matrix = None
with open(args.poses_file) as vo_file:
vo_reader = csv.reader(vo_file)
headers = next(vo_file)
for row in vo_reader:
src_image_name = row[0]
dst_image_name = row[1]
src_image_filename = os.path.join(args.dir,
src_image_name + '.png')
dst_image_filename = os.path.join(args.dir,
dst_image_name + '.png')
if not os.path.isfile(src_image_filename) or not os.path.isfile(
dst_image_filename):
continue
if dst_image_name not in dictionary:
img, orig_resolution = process_image(
load_image(dst_image_filename, model), args.crop,
args.scale)
dictionary[dst_image_name] = count
count = count + 1
result_list.append(list(img))
if src_image_name not in dictionary:
img, orig_resolution = process_image(
load_image(src_image_filename, model), args.crop,
args.scale)
dictionary[src_image_name] = count
count = count + 1
result_list.append(list(img))
focal_length, principal_point = get_intrinsics_parameters(
model.get_focal_length(), model.get_principal_point(),
orig_resolution, args.crop, args.scale)
src_image_idx = dictionary[src_image_name]
dst_image_idx = dictionary[dst_image_name]
xyzrpy = [float(v) for v in row[2:8]]
rel_pose = build_se3_transform(xyzrpy)
t_matrix = rel_pose[0:3] # 3x4 matrix
intrinsic_matrix = build_intrinsic_matrix(focal_length,
principal_point)
p_matrix = intrinsic_matrix * t_matrix
t_records.append((t_matrix, src_image_idx, dst_image_idx))
p_records.append((p_matrix, src_image_idx, dst_image_idx))
angles_records.append((xyzrpy, src_image_idx, dst_image_idx))
transf = np.array(t_records,
dtype=[('T', ('float64', (3, 4))), ('src_idx', 'int32'),
('dst_idx', 'int32')])
proy = np.array(p_records,
dtype=[('P', ('float64', (3, 4))), ('src_idx', 'int32'),
('dst_idx', 'int32')])
angles = np.array(angles_records,
dtype=[('ang', ('float64', 6)), ('src_idx', 'int32'),
('dst_idx', 'int32')])
# Solo lo guardo una vez porque es constante para todo el dataset (o deberia serlo)
if intrinsic_matrix is not None:
save_txt(os.path.join(output_dir, "intrinsic_matrix"),
intrinsic_matrix)
save_txt(os.path.join(output_dir, "intrinsic_parameters"),
[focal_length, principal_point])
#path = os.path.normpath(args.dir)
#folders = path.split(os.sep)
#compressed_file_path = os.path.join(output_dir, folders[-3])
result = list_to_array(result_list)
save_txt(os.path.join(output_dir, 'images_shape'), result.shape, fmt='%i')
print result.shape
compressed_file_path = os.path.join(output_dir, 'images')
savez_compressed(compressed_file_path, result)
savez_compressed(os.path.join(output_dir, 't'), transf)
savez_compressed(os.path.join(output_dir, 'p'), proy)
savez_compressed(os.path.join(output_dir, 'angles'), angles)
from transform import build_se3_transform
import my_params
np.set_printoptions(suppress=True)
DRAW_ON_IMAGE = True
output_image_dir = my_params.output_dir+'\\'+ my_params.dataset_no + '\\'
output_points_patch = my_params.output_dir+'\\'+ my_params.dataset_no + '_vo_points.csv'
if __name__ == '__main__':
# Intial data
# H = np.identity(4) # intial pose
xyzrpy = [620021.4778138875, 0, 5734795.685425566, 0.0128231,-0.0674645,-0.923368707] #2015
H = build_se3_transform(xyzrpy)
print(H)
# H = np.identity(4) # intial pose
poses = [] # poses list
final_points=[] # positions list
# First point
poses.append(H)
final_points.append((620021.4778138875, 5734795.685425566))
x_0 = (H[0,3])
z_0 = (H[2,3])
print(x_0,z_0)
plt.plot(x_0,z_0,'o',color='red')
plt.show()
# Get image
from camera_model import CameraModel
# Load data
vo_directory = my_params.dataset_patch + 'vo//vo.csv'
lidar_folder_path = my_params.laser_dir
lidar_timestamps_path = my_params.dataset_patch + 'ldmrs.timestamps'
# Making Video
# fourcc = cv2.VideoWriter_fourcc('m', 'p', '4', 'v')
# vw = cv2.VideoWriter('laser_scan.mp4', fourcc, 30, (600, 800))
C_origin = np.zeros((3, 1))
R_origin = np.identity(3)
xyzrpy = [0, 0, 0, -0.083514, -0.009355, 1.087759]
abs_pose = build_se3_transform(xyzrpy)
abs_poses = [abs_pose]
H_new = abs_pose
vo_timestamps = []
# Blank image
reso = [600, 800]
scale = 0.5
vo_map = np.zeros((reso[0], reso[1], 3), np.uint8) # 800*600 --> scale=1
start_map = (300, 150)
# vo_map = cv2.circle(vo_map,start_map,5,(0,0,255),thickness=3)
index = 0
with open(vo_directory) as vo_file:
vo_reader = csv.reader(vo_file)
# vw = cv2.VideoWriter('laser_scan.mp4', fourcc, 30, (600, 800))
# Intial data
# xyzrpy = [0, 0, 0, -0.090749, -0.000226, 4.211563]
# abs_poses = [abs_pose]
vo_on_map = []
obj_on_map = []
vo_timestamps = [0]
abs_poses = [ml.identity(4)]
scale = 1
abs_pose = build_se3_transform(my_params.xyzrpy)
abs_poses.append(abs_pose)
# Reading vo
print('Loading visual odometry...')
with open(vo_directory) as vo_file:
vo_reader = csv.reader(vo_file)
headers = next(vo_file)
index = 0
for row in vo_reader:
timestamp = int(row[0])
vo_timestamps.append(timestamp)
# datetime = dt.utcfromtimestamp(timestamp/1000000)
index += 1
# if index > 3000 :
def main():
#read the pointcloud
pointcloud_filename = "/data/lyh/lab/pcaifeat_RobotCar_v3_1/1400505794141322.txt"
pointcloud = np.loadtxt(pointcloud_filename, delimiter=' ')
pointcloud = np.hstack([pointcloud, np.ones((pointcloud.shape[0], 1))])
'''
for i in range(pointcloud.shape[0]):
print(" %.3f %.3f %.3f %.3f"%(pointcloud[i,0],pointcloud[i,1],pointcloud[i,2],pointcloud[i,3]))
exit()
'''
#load the camera model
models_dir = "/data/lyh/lab/robotcar-dataset-sdk/models/"
model = CameraModel(models_dir, "mono_left")
#load the camera global pose
imgpos_path = "/data/lyh/lab/pcaifeat_RobotCar_v3_1/1400505794141322_imgpos.txt"
print(imgpos_path)
imgpos = {}
with open(imgpos_path) as imgpos_file:
for line in imgpos_file:
pos = [x for x in line.split(' ')]
for i in range(len(pos) - 2):
pos[i + 1] = float(pos[i + 1])
imgpos[pos[0]] = np.reshape(np.array(pos[1:-1]), [4, 4])
'''
for key in imgpos.keys():
print(key)
print(imgpos[key])
exit()
'''
#read the camera and ins extrinsics
extrinsics_path = "/data/lyh/lab/robotcar-dataset-sdk/extrinsics/mono_left.txt"
print(extrinsics_path)
with open(extrinsics_path) as extrinsics_file:
extrinsics = [float(x) for x in next(extrinsics_file).split(' ')]
G_camera_vehicle = build_se3_transform(extrinsics)
print(G_camera_vehicle)
extrinsics_path = "/data/lyh/lab/robotcar-dataset-sdk/extrinsics/ins.txt"
print(extrinsics_path)
with open(extrinsics_path) as extrinsics_file:
extrinsics = [float(x) for x in next(extrinsics_file).split(' ')]
G_ins_vehicle = build_se3_transform(extrinsics)
print(G_ins_vehicle)
G_camera_posesource = G_camera_vehicle * G_ins_vehicle
#translate pointcloud to image coordinate
pointcloud = np.dot(np.linalg.inv(imgpos["mono_left"]), pointcloud.T)
pointcloud = np.dot(G_camera_posesource, pointcloud)
#project pointcloud to image
image_path = "/data/lyh/lab/pcaifeat_RobotCar_v3_1/1400505794141322_mono_left.png"
#image = load_image(image_path, model)
image = load_image(image_path)
uv = model.project(pointcloud, [1024, 1024])
lut = model.bilinear_lut[:, 1::-1].T.reshape((2, 1024, 1024))
u = map_coordinates(lut[0, :, :], uv, order=1)
v = map_coordinates(lut[1, :, :], uv, order=1)
uv = np.array([u, v])
print(uv.shape)
transform_matrix = np.zeros([64, 4096])
for i in range(uv.shape[1]):
if uv[0, i] == 0 and uv[1, i] == 0:
continue
cur_uv = np.rint(uv[:, i] / 128)
row = cur_uv[1] * 8 + cur_uv[0]
transform_matrix[int(row), i] = 1
aa = np.sum(transform_matrix, 1).reshape([8, 8])
print(np.sum(aa))
plt.figure(1)
plt.imshow(aa)
#plt.show()
#exit()
plt.figure(2)
#plt.imshow(image)
#uv = np.rint(uv/32)
plt.scatter(np.ravel(uv[0, :]),
np.ravel(uv[1, :]),
s=2,
edgecolors='none',
cmap='jet')
plt.xlim(0, 1024)
plt.ylim(1024, 0)
plt.xticks([])
plt.yticks([])
plt.show()
def build_pointcloud(lidar_dir, poses_file, extrinsics_dir, start_time, end_time, origin_time=-1):
"""Builds a pointcloud by combining multiple LIDAR scans with odometry information.
Args:
lidar_dir (str): Directory containing LIDAR scans.
poses_file (str): Path to a file containing pose information. Can be VO or INS data.
extrinsics_dir (str): Directory containing extrinsic calibrations.
start_time (int): UNIX timestamp of the start of the window over which to build the pointcloud.
end_time (int): UNIX timestamp of the end of the window over which to build the pointcloud.
origin_time (int): UNIX timestamp of origin frame. Pointcloud coordinates are relative to this frame.
Returns:
numpy.ndarray: 3xn array of (x, y, z) coordinates of pointcloud
numpy.array: array of n reflectance values or None if no reflectance values are recorded (LDMRS)
Raises:
ValueError: if specified window doesn't contain any laser scans.
IOError: if scan files are not found.
"""
if origin_time < 0:
origin_time = start_time
lidar = re.search('(lms_front|lms_rear|ldmrs)', lidar_dir).group(0)
timestamps_path = os.path.join(lidar_dir, os.pardir, lidar + '.timestamps')
timestamps = []
with open(timestamps_path) as timestamps_file:
for line in timestamps_file:
timestamp = int(line.split(' ')[0])
if start_time <= timestamp <= end_time:
timestamps.append(timestamp)
if len(timestamps) == 0:
raise ValueError("No LIDAR data in the given time bracket.")
with open(os.path.join(extrinsics_dir, lidar + '.txt')) as extrinsics_file:
extrinsics = next(extrinsics_file)
G_posesource_laser = build_se3_transform([float(x) for x in extrinsics.split(' ')])
poses_type = re.search('(vo|ins)\.csv', poses_file).group(1)
if poses_type == 'ins':
with open(os.path.join(extrinsics_dir, 'ins.txt')) as extrinsics_file:
extrinsics = next(extrinsics_file)
G_posesource_laser = np.linalg.solve(build_se3_transform([float(x) for x in extrinsics.split(' ')]),
G_posesource_laser)
poses = interpolate_ins_poses(poses_file, timestamps, origin_time)
else:
# sensor is VO, which is located at the main vehicle frame
poses = interpolate_vo_poses(poses_file, timestamps, origin_time)
pointcloud = np.array([[0], [0], [0], [0]])
if lidar == 'ldmrs':
reflectance = None
else:
reflectance = np.empty((0))
for i in range(0, len(poses)):
scan_path = os.path.join(lidar_dir, str(timestamps[i]) + '.bin')
if not os.path.isfile(scan_path):
continue
scan_file = open(scan_path)
scan = np.fromfile(scan_file, np.double)
scan_file.close()
scan = scan.reshape((len(scan) // 3, 3)).transpose()
if lidar != 'ldmrs':
# LMS scans are tuples of (x, y, reflectance)
reflectance = np.concatenate((reflectance, np.ravel(scan[2, :])))
scan[2, :] = np.zeros((1, scan.shape[1]))
scan = np.dot(np.dot(poses[i], G_posesource_laser), np.vstack([scan, np.ones((1, scan.shape[1]))]))
pointcloud = np.hstack([pointcloud, scan])
pointcloud = pointcloud[:, 1:]
if pointcloud.shape[1] == 0:
raise IOError("Could not find scan files for given time range in directory " + lidar_dir)
return pointcloud, reflectance
def generate_pointcloud():
WRITE_IMAGE = 1
DRAW_MAP = 1
# Data input
image_dir = my_params.image_dir
ldrms_dir = my_params.laser_dir
lmsfront_dir = my_params.lmsfront_dir
lmsrear_dir = my_params.lmsrear_dir
poses_file = my_params.poses_file
models_dir = my_params.model_dir
extrinsics_dir = my_params.extrinsics_dir
output_img_dir = my_params.output_dir2 + 'pl_img_' + my_params.dataset_no + '//'
output_ldrms_dir = my_params.output_dir2 + 'pl_ldrms_' + my_params.dataset_no + '//'
output_front_dir = my_params.output_dir2 + 'pl_front_' + my_params.dataset_no + '//'
output_rear_dir = my_params.output_dir2 + 'pl_rear_' + my_params.dataset_no + '//'
map_ldrms_dir = my_params.output_dir2 + 'map_ldrms_' + my_params.dataset_no + '//'
map_front_dir = my_params.output_dir2 + 'map_front_' + my_params.dataset_no + '//'
map_rear_dir = my_params.output_dir2 + 'map_rear_' + my_params.dataset_no + '//'
model = CameraModel(models_dir, image_dir)
extrinsics_path = os.path.join(extrinsics_dir, model.camera + '.txt')
with open(extrinsics_path) as extrinsics_file:
extrinsics = [float(x) for x in next(extrinsics_file).split(' ')]
G_camera_vehicle = build_se3_transform(extrinsics)
G_camera_posesource = None
poses_type = re.search('(vo|ins|rtk)\.csv', poses_file).group(1)
if poses_type in ['ins', 'rtk']:
with open(os.path.join(extrinsics_dir, 'ins.txt')) as extrinsics_file:
extrinsics = next(extrinsics_file)
G_camera_posesource = G_camera_vehicle * build_se3_transform([float(x) for x in extrinsics.split(' ')])
else:
# VO frame and vehicle frame are the same
G_camera_posesource = G_camera_vehicle
image_size = (960,1280,3)
timestamps_path = os.path.join(my_params.dataset_patch + model.camera + '.timestamps')
timestamp = 0
plt.figure()
with open(timestamps_path) as timestamps_file:
for i, line in enumerate(timestamps_file):
if i < 799:
# print('open image index', i)
# timestamp = int(line.split(' ')[0])
# break
continue
timestamp = int(line.split(' ')[0])
start_time = timestamp - 1e6
frame_path = os.path.join(my_params.reprocess_image_dir + '//' + str(timestamp) + '.png')
frame = cv2.imread(frame_path)
print('process image ',i,'-',timestamp)
if i < 4:
if(WRITE_IMAGE):
savefile_name = output_dir + '\\lms_front_img_' + my_params.dataset_no + '\\' + str(timestamp) + '.png'
cv2.imwrite(savefile_name, frame)
continue
pl_ldrms = np.zeros((960,1280),dtype=int)
pl_front = np.zeros((960,1280),dtype=int)
# LDRMS
ldrms_pointcloud, _ = build_pointcloud(ldrms_dir, poses_file, extrinsics_dir,
start_time, timestamp + 2e6, timestamp)
ldrms_pointcloud = np.dot(G_camera_posesource, ldrms_pointcloud)
uv, depth = model.project(ldrms_pointcloud,image_size)
x_p = np.ravel(uv[0,:])
y_p = np.ravel(uv[1,:])
z_p = np.ravel(depth)
map_ldrms = (np.array(ldrms_pointcloud[0:3,:])).transpose()
map_ldrms_filename = map_ldrms_dir + str(timestamp) + '.csv'
np.savetxt(map_ldrms_filename, map_ldrms, delimiter=",")
if (DRAW_MAP):
map_x = [numeric_map_x for numeric_map_x in np.array(ldrms_pointcloud[0,:])]
map_y = [numeric_map_y for numeric_map_y in np.array(ldrms_pointcloud[1,:])]
map_z = np.array(ldrms_pointcloud[2,:])
plt.scatter((map_y),(map_x),c='b',marker='.', zorder=1)
# LDRMS pointcloud to CSV
# for k in range(uv.shape[1]):
# pl_ldrms[int(y_p[k]),int(x_p[k])] = int(100*depth[k])
# ldrms_filename = output_ldrms_dir + str(timestamp) + '.csv'
# np.savetxt(ldrms_filename, pl_ldrms, delimiter=",")
# LMS-FRONT
front_pointcloud, _ = build_pointcloud(lmsfront_dir, poses_file, extrinsics_dir,
start_time, timestamp + 1e6, timestamp)
front_pointcloud = np.dot(G_camera_posesource, front_pointcloud)
wh,xrange = model.project(front_pointcloud,image_size)
x_f = np.ravel(wh[0,:])
y_f = np.ravel(wh[1,:])
z_f = np.ravel(xrange)
map_front = (np.array(front_pointcloud[0:3,:])).transpose()
map_front_filename = map_front_dir + str(timestamp) + '.csv'
np.savetxt(map_front_filename, map_front, delimiter=",")
if (DRAW_MAP):
map_x = [numeric_map_x for numeric_map_x in np.array(front_pointcloud[0,:])]
map_y = [numeric_map_y for numeric_map_y in np.array(front_pointcloud[1,:])]
map_z = [-numeric_map_z for numeric_map_z in np.array(front_pointcloud[2,:])]
plt.scatter((map_y),(map_z),c='r',marker='.', zorder=1)
# LMS-FRONT pointcloud to CSV
# for k in range(wh.shape[1]):
# pl_ldrms[int(y_f[k]),int(x_f[k])] = int(100*xrange[k])
# front_filename = output_front_dir + str(timestamp) + '.csv'
# np.savetxt(front_filename, pl_ldrms, delimiter=",")
# LMS-REAR
rear_pointcloud, _ = build_pointcloud(lmsrear_dir, poses_file, extrinsics_dir,
start_time, timestamp + 2e6, timestamp)
rear_pointcloud = np.dot(G_camera_posesource, rear_pointcloud)
map_rear = (np.array(rear_pointcloud[0:3,:])).transpose()
map_rear_filename = map_rear_dir + str(timestamp) + '.csv'
np.savetxt(map_rear_filename, map_rear, delimiter=",")
if (DRAW_MAP):
map_x = [numeric_map_x for numeric_map_x in np.array(rear_pointcloud[0,:])]
map_y = [-numeric_map_y for numeric_map_y in np.array(rear_pointcloud[1,:])]
map_z = [numeric_map_z for numeric_map_z in np.array(rear_pointcloud[2,:])]
plt.scatter((map_y),(map_z),c='g',marker='.', zorder=1)
if (WRITE_IMAGE):
for k in range(uv.shape[1]):
color = (int(255-8*depth[k]),255-3*depth[k],50+3*depth[k])
frame= cv2.circle(frame, (int(x_p[k]), int(y_p[k])), 1, color, 1)
for k in range(wh.shape[1]):
color = (int(255-8*xrange[k]),255-3*xrange[k],50+3*xrange[k])
frame= cv2.circle(frame, (int(x_f[k]), int(y_f[k])), 1, color, 1)
cv2.imshow('frame',frame)
image_filename = output_img_dir + str(timestamp) + '.png'
cv2.imwrite(image_filename, frame)
cv2.waitKey(1)
# plt.show()
plt.pause(0.1)
def main():
velodyne_dir = args.dir
if velodyne_dir[-1] == '/':
velodyne_dir = velodyne_dir[:-1]
velodyne_sensor = os.path.basename(velodyne_dir)
if velodyne_sensor not in ["velodyne_left", "velodyne_right"]:
raise ValueError(
"Velodyne directory not valid: {}".format(velodyne_dir))
timestamps_path = velodyne_dir + '.timestamps'
if not os.path.isfile(timestamps_path):
raise IOError(
"Could not find timestamps file: {}".format(timestamps_path))
title = "Velodyne Visualisation Example"
extension = ".bin" if args.mode == "bin_ptcld" else ".png"
velodyne_timestamps = np.loadtxt(timestamps_path,
delimiter=' ',
usecols=[0],
dtype=np.int64)
colourmap = (get_cmap("viridis")(np.linspace(0, 1, 255))[:, :3] *
255).astype(np.uint8)[:, ::-1]
interp_angles = np.mod(np.linspace(np.pi, 3 * np.pi, 720), 2 * np.pi)
vis = None
for velodyne_timestamp in velodyne_timestamps:
filename = os.path.join(args.dir, str(velodyne_timestamp) + extension)
if args.mode == "bin_ptcld":
ptcld = load_velodyne_binary(filename)
else:
ranges, intensities, angles, approximate_timestamps = load_velodyne_raw(
filename)
if args.mode == "raw_ptcld":
ptcld = velodyne_raw_to_pointcloud(ranges, intensities, angles)
elif args.mode == "raw_interp":
intensities = interpolate.interp1d(
angles[0], intensities, bounds_error=False)(interp_angles)
ranges = interpolate.interp1d(
angles[0], ranges, bounds_error=False)(interp_angles)
intensities[np.isnan(intensities)] = 0
ranges[np.isnan(ranges)] = 0
if '_ptcld' in args.mode:
# Pointcloud Visualisation using Open3D
if vis is None:
vis = open3d.Visualizer()
vis.create_window(window_name=title)
pcd = open3d.geometry.PointCloud()
# initialise the geometry pre loop
pcd.points = open3d.utility.Vector3dVector(
ptcld[:3].transpose().astype(np.float64))
pcd.colors = open3d.utility.Vector3dVector(
np.tile(ptcld[3:].transpose(), (1, 3)).astype(np.float64))
# Rotate pointcloud to align displayed coordinate frame colouring
pcd.transform(
build_se3_transform([0, 0, 0, np.pi, 0, -np.pi / 2]))
vis.add_geometry(pcd)
render_option = vis.get_render_option()
render_option.background_color = np.array(
[0.1529, 0.1569, 0.1333], np.float32)
render_option.point_color_option = open3d.PointColorOption.ZCoordinate
coordinate_frame = open3d.geometry.create_mesh_coordinate_frame(
)
vis.add_geometry(coordinate_frame)
view_control = vis.get_view_control()
params = view_control.convert_to_pinhole_camera_parameters()
params.extrinsic = build_se3_transform(
[0, 3, 10, 0, -np.pi * 0.42, -np.pi / 2])
view_control.convert_from_pinhole_camera_parameters(params)
pcd.points = open3d.utility.Vector3dVector(
ptcld[:3].transpose().astype(np.float64))
pcd.colors = open3d.utility.Vector3dVector(
np.tile(ptcld[3:].transpose(), (1, 3)).astype(np.float64) / 40)
vis.update_geometry()
vis.poll_events()
vis.update_renderer()
else:
# Ranges and Intensities visualisation using OpenCV
intensities_vis = colourmap[np.clip(
(intensities * 4).astype(np.int), 0, colourmap.shape[0] - 1)]
ranges_vis = colourmap[np.clip((ranges * 4).astype(np.int), 0,
colourmap.shape[0] - 1)]
visualisation = np.concatenate((intensities_vis, ranges_vis), 0)
visualisation = cv2.resize(visualisation,
None,
fy=6 * args.scale,
fx=args.scale,
interpolation=cv2.INTER_NEAREST)
cv2.imshow(title, visualisation)
cv2.waitKey(1)
parser.add_argument('--image_dir', type=str, help='Directory containing images')
parser.add_argument('--laser_dir', type=str, help='Directory containing LIDAR scans')
parser.add_argument('--poses_file', type=str, help='File containing either INS or VO poses')
parser.add_argument('--models_dir', type=str, help='Directory containing camera models')
parser.add_argument('--extrinsics_dir', type=str, help='Directory containing sensor extrinsics')
parser.add_argument('--image_idx', type=int, help='Index of image to display')
args = parser.parse_args()
model = CameraModel(args.models_dir, args.image_dir)
extrinsics_path = os.path.join(args.extrinsics_dir, model.camera + '.txt')
with open(extrinsics_path) as extrinsics_file:
extrinsics = [float(x) for x in next(extrinsics_file).split(' ')]
G_camera_vehicle = build_se3_transform(extrinsics)
G_camera_posesource = None
poses_type = re.search('(vo|ins)\.csv', args.poses_file).group(1)
if poses_type == 'ins':
with open(os.path.join(args.extrinsics_dir, 'ins.txt')) as extrinsics_file:
extrinsics = next(extrinsics_file)
G_camera_posesource = G_camera_vehicle * build_se3_transform([float(x) for x in extrinsics.split(' ')])
else:
# VO frame and vehicle frame are the same
G_camera_posesource = G_camera_vehicle
timestamps_path = os.path.join(args.image_dir, os.pardir, model.camera + '.timestamps')
if not os.path.isfile(timestamps_path):
timestamps_path = os.path.join(args.image_dir, os.pardir, os.pardir, model.camera + '.timestamps')
def play_vo():
import numpy.matlib as ml
import csv
from interpolate_poses import interpolate_poses
from transform import build_se3_transform
# Read data
vo_directory = my_params.dataset_patch + 'vo\\vo.csv'
output_image_dir = my_params.output_dir + '\\' + my_params.dataset_no + '\\'
output_points_patch = my_params.output_dir + '\\' + my_params.dataset_no + '_vo_admin.csv'
# fix start point
# abs_pose = [ml.identity(4)]
abs_pose = build_se3_transform(my_params.xyzrpy)
abs_poses = [abs_pose]
with open(vo_directory) as vo_file:
vo_reader = csv.reader(vo_file)
headers = next(vo_file)
index = 0
for row in vo_reader:
timestamp = int(row[0])
datetime = dt.utcfromtimestamp(timestamp / 1000000)
xyzrpy = [float(v) for v in row[2:8]]
rel_pose = build_se3_transform(xyzrpy)
abs_pose = abs_poses[-1] * rel_pose
abs_poses.append(abs_pose)
index += 1
if index > 2000: break
vo_file.close()
# abs_quaternions = np.zeros((4, len(abs_poses)))
abs_positions = np.zeros((3, len(abs_poses)))
print('num of point:', len(abs_poses))
# plt.figure()
# plt.gca().set_aspect('equal', adjustable='box')
fig, ax = plt.subplots()
# image from opestreetmap.org
ruh_m = plt.imread(my_params.project_patch + 'rtk\\' +
my_params.dataset_no + '.png')
points = []
for i, pose in enumerate(abs_poses):
# abs_quaternions[:, i] = so3_to_quaternion(pose[0:3, 0:3])
abs_positions[:, i] = np.ravel(pose[0:3, 3])
point = (-abs_positions[0, i], abs_positions[1, i]) # -x, y of point
# plt.plot(point[0],point[1],'.',color='red')
# plt.scatter(point[0],point[1],c='b',marker='.', zorder=1)
ax.scatter(point[0], point[1], zorder=1, alpha=0.2, c='b', marker='.')
points.append(point)
points = np.array(points)
# print(points.shape)
# Save and quit
np.savetxt(output_points_patch, points, delimiter=",")
BBox = (np.min(points[:, 0]), np.max(points[:, 0]), np.min(points[:, 1]),
np.max(points[:, 1]))
ax.set_title('Plotting VO Map')
ax.set_xlim(BBox[0], BBox[1])
ax.set_ylim(BBox[2], BBox[3])
ax.imshow(ruh_m, zorder=0, extent=BBox, aspect='equal')
plt.show()
