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import copy
# import plotly.express as px
# import plotly.graph_objects as go
import json
import numpy as np
CAMERA_MOTION_MODE = ["Basic Camera Poses", "Provided Complex Camera Poses", "Custom Camera Poses"]
CAMERA = {
# T
"base_T_norm": 1.5,
"base_angle": np.pi/3,
"Pan Up": { "angle":[0., 0., 0.], "T":[0., 1., 0.]},
"Pan Down": { "angle":[0., 0., 0.], "T":[0.,-1.,0.]},
"Pan Left": { "angle":[0., 0., 0.], "T":[3.,0.,0.]},
"Pan Right": { "angle":[0., 0., 0.], "T": [-3.,0.,0.]},
"Zoom In": { "angle":[0., 0., 0.], "T": [0.,0.,-4.]},
"Zoom Out": { "angle":[0., 0., 0.], "T": [0.,0.,4.]},
"ACW": { "angle": [0., 0., 1.], "T":[0., 0., 0.]},
"CW": { "angle": [0., 0., -1.], "T":[0., 0., 0.]},
}
COMPLEX_CAMERA = {
"Pose_1": "examples/camera_poses/test_camera_1424acd0007d40b5.json",
"Pose_2": "examples/camera_poses/test_camera_d971457c81bca597.json",
"Pose_3": "examples/camera_poses/test_camera_Round-ZoomIn.json",
"Pose_4": "examples/camera_poses/test_camera_Round-RI_90.json",
"Pose_5": "examples/camera_poses/test_camera_Round-RI-120.json",
"Pose_6": "examples/camera_poses/test_camera_018f7907401f2fef.json",
"Pose_7": "examples/camera_poses/test_camera_088b93f15ca8745d.json",
"Pose_8": "examples/camera_poses/test_camera_b133a504fc90a2d1.json",
}
def compute_R_form_rad_angle(angles):
theta_x, theta_y, theta_z = angles
Rx = np.array([[1, 0, 0],
[0, np.cos(theta_x), -np.sin(theta_x)],
[0, np.sin(theta_x), np.cos(theta_x)]])
Ry = np.array([[np.cos(theta_y), 0, np.sin(theta_y)],
[0, 1, 0],
[-np.sin(theta_y), 0, np.cos(theta_y)]])
Rz = np.array([[np.cos(theta_z), -np.sin(theta_z), 0],
[np.sin(theta_z), np.cos(theta_z), 0],
[0, 0, 1]])
# 计算相机外参的旋转矩阵
R = np.dot(Rz, np.dot(Ry, Rx))
return R
def get_camera_motion(angle, T, speed, n=16):
RT = []
for i in range(n):
_angle = (i/n)*speed*(CAMERA["base_angle"])*angle
R = compute_R_form_rad_angle(_angle)
# _T = (i/n)*speed*(T.reshape(3,1))
_T=(i/n)*speed*(CAMERA["base_T_norm"])*(T.reshape(3,1))
_RT = np.concatenate([R,_T], axis=1)
RT.append(_RT)
RT = np.stack(RT)
return RT
def create_relative(RT_list, K_1=4.7, dataset="syn"):
RT = copy.deepcopy(RT_list[0])
R_inv = RT[:,:3].T
T = RT[:,-1]
temp = []
for _RT in RT_list:
_RT[:,:3] = np.dot(_RT[:,:3], R_inv)
_RT[:,-1] = _RT[:,-1] - np.dot(_RT[:,:3], T)
temp.append(_RT)
RT_list = temp
return RT_list
def combine_camera_motion(RT_0, RT_1):
RT = copy.deepcopy(RT_0[-1])
R = RT[:,:3]
R_inv = RT[:,:3].T
T = RT[:,-1]
temp = []
for _RT in RT_1:
_RT[:,:3] = np.dot(_RT[:,:3], R)
_RT[:,-1] = _RT[:,-1] + np.dot(np.dot(_RT[:,:3], R_inv), T)
temp.append(_RT)
RT_1 = np.stack(temp)
return np.concatenate([RT_0, RT_1], axis=0)
def process_camera(camera_dict, camera_args, num_frames=16, width=256, height=256):
speed = camera_dict['speed']
motion_list = camera_dict['motion']
mode = camera_dict['mode']
if mode == 'Customized Mode 3: RAW Camera Poses':
# print(camera_args)
RT = camera_args.strip().split()
assert(len(RT) == num_frames*12), "The number of camera poses should be equal to the number of frames"
RT = [float(x) for x in RT]
RT = np.array(RT).reshape(-1, 3, 4)
RT[:, :, -1] = RT[:, :, -1] * np.array([1.5, 1, 1.3]) * speed
return RT
if camera_dict['complex'] is not None:
with open(COMPLEX_CAMERA[camera_dict['complex']]) as f:
RT = json.load(f) # [16, 12]
if num_frames < len(RT):
half = (len(RT) - num_frames) // 2
RT = RT[half:half+num_frames]
RT = np.array(RT).reshape(-1, 3, 4)
RT[:, :, -1] = RT[:, :, -1] * np.array([1.5, 1, 1.3]) * speed
return RT
half_num_frames = num_frames//2
print(len(motion_list))
if len(motion_list) == 0:
angle = np.array([0,0,0])
T = np.array([0,0,0])
RT = get_camera_motion(angle, T, speed, num_frames)
elif len(motion_list) == 1:
angle = np.array(CAMERA[motion_list[0]]["angle"])
T = np.array(CAMERA[motion_list[0]]["T"])
print(angle, T)
RT = get_camera_motion(angle, T, speed, num_frames)
elif len(motion_list) == 2:
if mode == "Customized Mode 1: First A then B":
angle = np.array(CAMERA[motion_list[0]]["angle"])
T = np.array(CAMERA[motion_list[0]]["T"])
RT_0 = get_camera_motion(angle, T, speed, half_num_frames)
angle = np.array(CAMERA[motion_list[1]]["angle"])
T = np.array(CAMERA[motion_list[1]]["T"])
RT_1 = get_camera_motion(angle, T, speed, num_frames-half_num_frames)
RT = combine_camera_motion(RT_0, RT_1)
elif mode == "Customized Mode 2: Both A and B":
angle = np.array(CAMERA[motion_list[0]]["angle"]) + np.array(CAMERA[motion_list[1]]["angle"])
T = np.array(CAMERA[motion_list[0]]["T"]) + np.array(CAMERA[motion_list[1]]["T"])
RT = get_camera_motion(angle, T, speed, num_frames)
return RT
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