def getDataset(dataset):
if (dataset == 0):
joint_data = ld.get_joint("joint/train_joint0")
lidar_data = ld.get_lidar("lidar/train_lidar0")
# rgd_data = ld.get_rgb("cam/RGB_0")
# depth_data = ld.get_depth("cam/DEPTH_0")
# exIR_RGB = ld.getExtrinsics_IR_RGB()
# IRCalib = ld.getIRCalib()
# RGBCalib = ld.getRGBCalib()
elif (dataset == 1):
joint_data = ld.get_joint("joint/train_joint1")
lidar_data = ld.get_lidar("lidar/train_lidar1")
elif (dataset == 2):
joint_data = ld.get_joint("joint/train_joint2")
lidar_data = ld.get_lidar("lidar/train_lidar2")
elif (dataset == 3):
joint_data = ld.get_joint("joint/train_joint3")
lidar_data = ld.get_lidar("lidar/train_lidar3")
# rgd_data = ld.get_rgb("cam/RGB_3")
# depth_data = ld.get_depth("cam/DEPTH_3")
# exIR_RGB = ld.getExtrinsics_IR_RGB()
# IRCalib = ld.getIRCalib()
# RGBCalib = ld.getRGBCalib()
elif (dataset == 4):
joint_data = ld.get_joint("joint/train_joint4")
lidar_data = ld.get_lidar("lidar/train_lidar4")
# rgd_data = ld.get_rgb("cam/RGB_4")
# depth_data = ld.get_depth("cam/DEPTH_4")
# exIR_RGB = ld.getExtrinsics_IR_RGB()
# IRCalib = ld.getIRCalib()
# RGBCalib = ld.getRGBCalib()
return joint_data, lidar_data
def load_data(dataset, texture):
'''
Load and preprocess data
Input:
dataset - number of dataset to use
texture - boolean to switch on texture mapping (include kinect data)
Output:
enc_data - Encoder data in dictionary, with left and right displacement, and timestamps
imu_data - IMU data in dictionary, with angular velocity (yaw rate), linear acceleration and timestamps
lidar_data - LiDAR data in dictionary, with ranges, angles and timestamps
'''
#load data
imu_data = ld.get_imu(dataset)
lidar_data = ld.get_lidar(dataset)
enc_data = ld.get_enc(dataset)
if texture == True:
kinect_data = ld.get_kinect_time(dataset)
else:
kinect_data = 0
# remove bias for odometry, init state is (0,0,0)
yaw_bias_av = np.mean(imu_data['av'][0:380])
imu_data['av'] -= yaw_bias_av
#apply band pass filter
order = 1
fs = 50 # sample rate, Hz
low = 0.000001 # desired band frequency of the filter, Hz
high = 10
imu_data['av'] = butter_bandpass_filter(imu_data['av'], low, high, fs,
order)
return enc_data, imu_data, lidar_data, kinect_data
def __init__(self, lfilename, jfilename):
self.lfilename = lfilename
self.lidar = load_data.get_lidar(self.lfilename)
self.jfilename = jfilename
self.joint = load_data.get_joint(self.jfilename)
self.j_t = self.joint['ts']
self.j_ang = self.joint['head_angles']
self.j_n = self.j_ang[0]
self.j_h = self.j_ang[1]
self.pose = np.array([0.0, 0.0, 0.0])
self.scan = None
def runSlam():
# lidarFile = 'Proj4_2018_Train/data/train_lidar1'
# jointFile = 'Proj4_2018_Train/data/train_joint1'
lidarFile = 'Proj4_2018_test/test_lidar'
jointFile = 'Proj4_2018_test/test_joint'
plt.ion()
# plt.show()
lidar = ld.get_lidar(lidarFile)
joint = ld.get_joint(jointFile)
P, W, Map, poseHistoryX, poseHistoryY = slam(lidar, joint)
showMaps(P, W, Map, poseHistoryX, poseHistoryY)
print 'Done'
plt.show(block=True)
def load_folder(folder_par):
# prefix_list= ["Hokuyo","Encoders","imu"]
# find location of period (where file extension starts) and extract unique filenames
unique_files = list(
set([i[i.find(".") - 2:i.find(".")] for i in os.listdir(folder_par)]))
# load all map attributes into classes
'''NOTE: r prefix tells interpreter the backslash is to be take literally, as any other character.'''
map_list = [map_object(\
id,\
load_data.get_lidar(folder_par+r"/Hokuyo{0}".format(id)),\
load_data.get_encoder(folder_par+r"/Encoders{0}".format(id)),\
load_data.get_imu(folder_par+r"/imu{0}".format(id)))\
for id in unique_files]
return map_list
def runTextureMap():
lidarFile = 'Proj4_2018_Train/data/train_lidar0'
jointFile = 'Proj4_2018_Train/data/train_joint0'
depthFile = 'Proj4_2018_Train_rgb/DEPTH_0'
rgbFile = 'Proj4_2018_Train_rgb/RGB_0'
plt.ion()
lidar = ld.get_lidar(lidarFile)
joint = ld.get_joint(jointFile)
depth = ld.get_depth(depthFile)
rgb = ld.get_rgb(rgbFile)
slamWithTM(lidar, joint, depth, rgb)
print 'Done'
plt.show(block=True)
def main():
# read data
lidar_file_name = "lidar/train_lidar2"
joint_file_name = "joint/train_joint2"
lidar_data = get_lidar(lidar_file_name)
joint_data = get_joint(joint_file_name)
robot_pose = get_odom(lidar_data)
lidar_data = joint_align(lidar_data, joint_data)
# particles init
P = particleInit(num=128)
# grid map init
MAP = mapInit()
# init parameters
step_size = 20
trajectory = np.empty(shape=(1, 2))
var_scale = np.array([0.001, 0.001, 0.01 * np.pi / 180])
lidar_angles = np.arange(-135, 135.25, 0.25) * np.pi / 180
for i in range(0, len(lidar_data), step_size):
if (i % 100 == 0):
print(i)
''' Predict '''
delta_pose = get_motion(robot_pose, lidar_data[i], i, step_size)
P['states'] = motion_model_predict(P['states'], delta_pose, var_scale)
''' Update '''
best_particle = measurement_model_update(MAP, P, lidar_data[i],
lidar_angles)
trajectory = np.vstack((trajectory, [
int(best_particle[0] / MAP['res']) + MAP['sizex'] // 2,
int(best_particle[1] / MAP['res']) + MAP['sizey'] // 2
]))
''' Mapping '''
MAP['map'] = mapping(MAP['map'], lidar_data[i], best_particle,
MAP['res'], lidar_angles)
''' Resample '''
N_eff = 1 / np.sum(P['weight']**2)
if N_eff < 0.3 * P['number']:
print("Resampling...")
P = resampling_wheel(P)
# plot
plot(MAP['map'], MAP['res'], robot_pose, trajectory)
def __init__(self,dataset='0',data_folder='data',name=None): if name == None: lidar_file = os.path.join(data_folder,'train_lidar' +dataset) else: lidar_file = os.path.join(data_folder,name) lidar_data = ld.get_lidar(lidar_file) # substract the beginning value of yaw given by ypr # lidar_data[:]['rpy'][0] yaw_offset = lidar_data[0]['rpy'][0,2] position_offset = lidar_data[0]['pose'][0] for j in range(len(lidar_data)): lidar_data[j]['rpy'][0,2] -= yaw_offset lidar_data[j]['pose'][0] -= position_offset #self.range_theta_ = (np.arange(0,270.25,0.25) - 135)*np.pi/float(180) self.num_measures_ = len(lidar_data) self.data_ = lidar_data
def __init__(self,dataset='0',data_folder='data',name=None):
if name == None:
lidar_file = os.path.join(data_folder,'train_lidar' +dataset)
else:
lidar_file = os.path.join(data_folder,name)
lidar_data = ld.get_lidar(lidar_file)
# substract the beginning value of yaw given by ypr
# lidar_data[:]['rpy'][0]
yaw_offset = lidar_data[0]['rpy'][0,2]
for j in range(len(lidar_data)):
lidar_data[j]['rpy'][0,2] -= yaw_offset
self.range_theta_ = np.arange(0,270.25,0.25)*np.pi/float(180)
self.num_measures_ = len(lidar_data)
self.data_ = lidar_data
# self._read_lidar(lidar_data)
# Limitation of the lidar's ray
self.L_MIN = 0.001
self.L_MAX = 30
self.res_ = 0.25 # (angular resolution of rada = 0.25 degrees)
def __init__(self, dataset='0', data_folder='data', name=None):
if name == None:
lidar_file = os.path.join(data_folder, 'train_lidar' + dataset)
else:
lidar_file = os.path.join(data_folder, name)
lidar_data = ld.get_lidar(lidar_file)
yaw_offset = lidar_data[0]['rpy'][0, 2]
for j in range(len(lidar_data)):
lidar_data[j]['rpy'][0, 2] -= yaw_offset
self.range_theta = np.arange(0, 270.25, 0.25) * np.pi / float(180)
self.num_measures = len(lidar_data)
self.data_ = lidar_data
self.L_MIN = 0.001
self.L_MAX = 30
self.res_ = 0.25
import mapping_functions_17 as map_func
def find_nearest_time(lidar_ts, joint_ts):
joint_idx = np.zeros(np.shape((lidar_ts)))
for i in range(0,len(np.transpose(lidar_ts))):
joint_idx[:,i] = np.abs(joint_ts - lidar_ts[:,i]).argmin()
return joint_idx
ti = time.time()
#%% Load data
lidar_data_index = 0
lidar_data = io.loadmat("data/train_lidar"+str(lidar_data_index)+".mat")
joint_data = io.loadmat("data/train_joint"+str(lidar_data_index)+".mat")
joint_ts = joint_data['ts']
temp = ld.get_lidar('data/train_lidar'+str(lidar_data_index))
head_angles = joint_data['head_angles']
#%% Sync time
lidar_ts = []
for i in range(len(temp)):
ts = float(temp[i]['t'])
lidar_ts.append(ts)
lidar_ts = np.matrix(lidar_ts)
joint_idx = find_nearest_time(lidar_ts, joint_ts).astype(int)
#%% Init MAP
MAP, prob_map = map_func.init_map()
def TM(data_folder_name, datanum, rgbd_flag):
if test:
name0 = 'test'
else:
name0 = 'train'
if not if_multiple_data:
datanum = ''
'''
# Load kinect parameters
fex = open('./cameraParam/exParams.pkl', 'rb')
fIR = open('./cameraParam/IRcam_Calib_result.pkl', 'rb')
fRGB = open('./cameraParam/RGBcamera_Calib_result.pkl', 'rb')
exParams = pickle.load(fex, encoding = 'bytes')
irParams = pickle.load(fIR, encoding = 'bytes')
rgbParams = pickle.load(fRGB, encoding = 'bytes')
# get camera intrinsic parameters
fx_ir = irParams[b'fc'][0]
fy_ir = irParams[b'fc'][1]
px_ir = irParams[b'cc'][0]
py_ir = irParams[b'cc'][1]
fx_rgb = rgbParams[b'fc'][0]
fy_rgb = rgbParams[b'fc'][1]
px_rgb = rgbParams[b'cc'][0]
py_rgb = rgbParams[b'cc'][1]
'''
fx_ir, fy_ir = 364.457362486, 364.542810627
px_ir, py_ir = 258.422487562, 202.48713994
fx_rgb, fy_rgb = 1049.3317526, 1051.31847629
px_rgb, py_rgb = 956.910516428, 533.452032441
# get transformation from depth/IR camera to RGB camera
# T_alignCams = alignCams(exParams[b'R'], exParams[b'T'])
T_alignCams = np.array([[0.99996855, 0.00589981, 0.00529992, 52.2682/1000],
[-0.00589406, 0.99998202, -0.00109998, 1.5192/1000],
[-0.00530632, 0.00106871, 0.99998535, -0.6059/1000],
[0., 0., 0., 1.]])
# load data
lidar_new = ld.get_lidar(os.path.join(data_folder_name, name0 + '_lidar' + str(datanum)))
joint_new = ld.get_joint(os.path.join(data_folder_name, name0 + '_joint' + str(datanum)))
dpt_name = os.path.join(rgbd_folder_name, 'DEPTH' + (if_multiple_data * ('_' + str(datanum))))
dpt_mat = ld.get_depth(dpt_name)
image_name = os.path.join(rgbd_folder_name, 'RGB' + (if_multiple_data * ('_' + str(datanum))) + ( \
if_multiple_mat * ('_' + str(1))))
rgb = ld.get_rgb(image_name)
# starting time and intervals for data scan
mints = 0
int_skip = 1
#prev_img_ind = 0
h = 424 # depth image height & width
w = 512
xr = np.arange(w)
yr = np.arange(h)
u_dpt, v_dpt = np.meshgrid(xr, yr)
# v=rows in mat/y-axis
# u=cols in mat/x-axis
# threshold of plane fitting
eps = 0.02
# init video for texture map
map = np.load('map' + str(datanum) + '.npy')
texture_videoname = 'goodtexture' + str(datanum) + '.mp4'
video_t = cv2.VideoWriter(texture_videoname, cv2.VideoWriter_fourcc('m', 'p', '4', 'v'), \
15, (np.shape(map)[1], np.shape(map)[0]))
cv2.namedWindow(texture_videoname, cv2.WINDOW_NORMAL)
img_videoname = 'grounddetection' + str(datanum) + '.mp4'
video_img=cv2.VideoWriter(img_videoname, cv2.VideoWriter_fourcc('m', 'p', '4', 'v'), \
15, (1920, 1080))
cv2.namedWindow('im_to_show', cv2.WINDOW_NORMAL)
display_floor = np.tile((map > 0)[:, :, np.newaxis], (1, 1, 3)) * 125
display_floor = display_floor.astype('uint8')
#path_rx = np.load('path_rx'+str(datanum)+'.npy')
#path_ry = np.load('path_ry'+str(datanum)+'.npy')
path_x = np.load('path_x'+str(datanum)+'.npy')
path_y = np.load('path_y'+str(datanum)+'.npy')
path_theta=np.load('path_theta'+str(datanum)+'.npy')
path_ts=np.load('path_ts'+str(datanum)+'.npy')
# cell to meter
path_x=(path_x+1)*0.1-50
path_y = (path_y + 1) * 0.1 - 50
# SLAM
for i in np.arange(mints, len(dpt_mat), int_skip):
i=int(i)
print('\ndepth image ' + str(i))
# check whether to get frames from different RGB mat
samergb=(i+1)%300
this_rgb=int((i+1)/300)
if not samergb:
if this_rgb ==rgbnum:
print('\n...texture mapping end!')
video_t.release()
video_img.release()
break
print('\nTime to go with another RGB mat...')
rgb=ld.get_rgb(os.path.join(rgbd_folder_name, 'RGB' + (if_multiple_data * ('_' + str(datanum))) + ( \
if_multiple_mat * ('_' + str(this_rgb+1)))))
# sync time stamps
ts_diff = abs(joint_new['ts'] - dpt_mat[i]['t'])[0, :]
ind_j = np.where(ts_diff == min(ts_diff))[0][0]
ts_diff = abs(path_ts- dpt_mat[i]['t'])
ind_p = np.where(ts_diff == min(ts_diff))[0]
#pdb.set_trace()
# load image
#pdb.set_trace()
image=rgb[i - 300*(this_rgb)]['image']
dpt=dpt_mat[i]['depth']
dpt = dpt / 1000 # depth in meter now
head_angles = joint_new['head_angles'][:, ind_j]
rpy = joint_new['rpy'][:, ind_j] - joint_new['rpy'][:, 0]
# 3D in dpt frame
Pts_dpt = img_to_world(fx_ir, fy_ir, px_ir, py_ir, u_dpt, v_dpt, dpt[v_dpt, u_dpt])
# 3D in cam frame
valid_homo = np.hstack((Pts_dpt, np.ones([np.shape(Pts_dpt)[0], 1])))# n*4
Pts_rgb = np.dot(T_alignCams, valid_homo.T) # 4*n
# 2D in cam frame
u_rgb, v_rgb = world_to_img(fx_rgb, fy_rgb, px_rgb, py_rgb, Pts_rgb.T)
u_rgb = u_rgb.astype(np.int)
v_rgb = v_rgb.astype(np.int)
# get valid indices
ind_max = np.logical_and(u_rgb < 1920, v_rgb < 1080)
ind_min = np.logical_and(u_rgb >= 0, v_rgb >= 0)
ind_range=np.logical_and(ind_max, ind_min)
# 3D in world frame
T=kinectToGlobal(head_angles, rpy, \
np.array([path_x[ind_p], path_y[ind_p], path_theta[ind_p]]))
#pdb.set_trace()
R = np.array([[0, 0, 1, 0], [-1, 0, 0, 0], [0, -1, 0, 0], [0,0,0,1]])
Pts_w=np.dot(T, np.dot(R,Pts_rgb)) #4*n
#pdb.set_trace()
# get points close to ground plane
mask_g=(Pts_w[2,:]<eps)
ind_valid=np.logical_and(ind_range, mask_g)
true_pos=Pts_w[:2, ind_valid]
# pos in grid cells
x_true_pos= np.ceil((true_pos[0,:] - (-50)) / 0.1).astype(np.int16) - 1
y_true_pos = np.ceil((true_pos[1,:] - (-50)) / 0.1).astype(np.int16) - 1
x_true_pos = x_true_pos.astype(np.int)
y_true_pos = y_true_pos.astype(np.int)
# visualization
img_base = np.zeros_like(image)
img_base[v_rgb[ind_valid], u_rgb[ind_valid]] += 1
img_base = cv2.dilate(img_base, kernel = np.ones((5,5),np.uint8), iterations = 1)
gmask = img_base[:, :, 2].copy()
g = np.stack((np.zeros_like(gmask), np.zeros_like(gmask), gmask), 2)
im_to_show = image.copy()+g*255*0.3
cv2.imshow('im_to_show', im_to_show.astype(np.uint8))
key = cv2.waitKey(100)
video_img.write(im_to_show.astype(np.uint8))
# adding texture
display_floor[x_true_pos, y_true_pos, 2] = image[v_rgb[ind_valid], u_rgb[ind_valid], 0]
display_floor[x_true_pos, y_true_pos, 1] = image[v_rgb[ind_valid], u_rgb[ind_valid], 1]
display_floor[x_true_pos, y_true_pos, 0] = image[v_rgb[ind_valid], u_rgb[ind_valid], 2]
cv2.imshow(texture_videoname, display_floor)
key = cv2.waitKey(100)
video_t.write(display_floor)
map['occu_grids'][
matrix > 0] = map['occu_grids'][matrix > 0] - log_odds_free_update
# saturation limit of log odds
map['occu_grids'] = saturationCheck(map['occu_grids'])
return map
if __name__ == '__main__':
if test:
name0 = 'test'
else:
name0 = 'train'
lidar_new = ld.get_lidar(
os.path.join(data_folder_name, name0 + '_lidar' + str(datanum)))
joint_new = ld.get_joint(
os.path.join(data_folder_name, name0 + '_joint' + str(datanum)))
log_odds_free_update = 0.75
log_odds_occupied_update = 1.5
log_odds_free_sat = -100
log_odds_occupied_sat = 100
# init map
map = {}
map['res'] = 0.1 # meters
map['xmin'] = -30 # meters
map['ymin'] = -30
map['xmax'] = 30
map['ymax'] = 30
# In[10]:
#load data
import matplotlib.pyplot as plt
import load_data as ld
import math
import numpy as np
import MapUtils as MU
from scipy.special import logsumexp
acc_x, acc_y, acc_z, gyro_x, gyro_y, gyro_z, imu_ts = ld.get_imu('data/imu23')
FR, FL, RR, RL, enc_ts = ld.get_encoder('data/Encoders23')
lidar = ld.get_lidar('data/Hokuyo23')
# In[11]:
# Bresenham's ray tracing algorithm in 2D.
# Inputs:
#(sx, sy) start point of ray
#(ex, ey) end point of ray
def bresenham2D(sx, sy, ex, ey):
sx = int(round(sx))
sy = int(round(sy))
ex = int(round(ex))
ey = int(round(ey))
dx = abs(ex - sx)
dy = abs(ey - sy)
def SLAM(data_folder_name, datanum):
if test:
name0 = 'test'
else:
name0 = 'train'
if not if_multiple_data:
datanum = ''
#load data
lidar_new = ld.get_lidar(
os.path.join(data_folder_name, name0 + '_lidar' + str(datanum)))
joint_new = ld.get_joint(
os.path.join(data_folder_name, name0 + '_joint' + str(datanum)))
# init map
map = {}
map = initMap(map)
# init particles
pr = {}
pr = initParticles(pr)
# starting time and intervals for data scan
mints = 0
int_skip = 10
# init video
videoname = 'slam' + str(datanum) + '.mp4'
video = cv2.VideoWriter(videoname, cv2.VideoWriter_fourcc('m', 'p', '4', 'v'), \
15, (map['sizey'], map['sizex']))
cv2.namedWindow(videoname, cv2.WINDOW_NORMAL)
# SLAM
for i in np.arange(mints, len(lidar_new), int_skip):
print('\nscan ' + str(i))
# sync time stamps
ts_diff = abs(joint_new['ts'] - lidar_new[i]['t'])[0, :]
ind_j = np.where(ts_diff == min(ts_diff))[0][0]
#print('lidar'+str(i)+str(lidar_new[i]['t']))
#print('joint'+str(ind_j)+ str(joint_new['ts'][:, ind_j]))
# first scan to update map only
if i == mints:
ind_j_first = ind_j
pr['best'] = lidar_new[i]['pose']
pr['best'] = pr['best'].astype('float')
pr['odom'] = np.tile(pr['best'], [pr['num'], 1])
ray_g = raycast(joint_new, lidar_new, map, i, ind_j, ind_j_first,
pr['best'])
map = updateMap(map, pr['best'], ray_g)
# standard deviation for gaussian noise in motion update
binary_map = (map['occu_grids'] > 0).astype('uint8')
delta_pose = lidar_new[i]['pose'] - lidar_new[i - int_skip]['pose']
stdx = max(0.001 * int_skip, abs(delta_pose[0, 0]) / 3)
stdy = max(0.001 * int_skip, abs(delta_pose[0, 1]) / 3)
stdtheta = max(0.005 * int_skip, abs(delta_pose[0, 2]) / 3)
# for each particle
for p in range(pr['num']):
# particle propagation
motion_noise = np.random.normal(0, [[stdx], [stdy], [stdtheta]],
(3, 1))
pr['odom'][p, :] = motionUpdate(lidar_new[i]['pose'],
lidar_new[i - int_skip]['pose'],
pr['odom'][p, :], motion_noise)
# use map correlation to update particle weights
ray_g = raycast(joint_new, lidar_new, map, i, ind_j, ind_j_first,
pr['odom'][p, :][np.newaxis, :]) #3*n
ray_cell_x, ray_cell_y = mToCell(ray_g[0, :], ray_g[1, :], map)
corrsum = compCorr(binary_map, map, ray_cell_x, ray_cell_y)
pr['weights'][p, :] = pr['weights'][p, :] * corrsum
# find best particle with maximum weights
ind_best = np.where(pr['weights'] == max(pr['weights']))
ind_best = ind_best[0][0]
pr['best'] = pr['odom'][ind_best][np.newaxis, :]
# weights normalization
pr['weights'] = pr['weights'] / sum(pr['weights'])
# update map with best particle only
ray_g = raycast(joint_new, lidar_new, map, i, ind_j, ind_j_first,
pr['best'])
map = updateMap(map, pr['best'], ray_g)
#print('...num of particles with max weights: '+str(np.where(pr['weights'] == max(pr['weights']))[0].size))
print('...max weights: ' + str(max(pr['weights'])))
print('...best pose: ' + str(pr['best']))
# resample particles when effective particles is less than threshold
Neff = sum(pr['weights'])**2 / sum(pr['weights']**2)
print('...effective particle number: ' + str(Neff))
if Neff < pr['Neff']:
pr = resample(pr)
print('\nresampling done!')
# meter to cell
rob_cell_x, rob_cell_y = mToCell(pr['best'][:, 0], pr['best'][:, 1],
map)
# visulization
# occupancy grids
display = (map['occu_grids']).copy()
displayrgb = np.tile(display[:, :, np.newaxis], (1, 1, 3))
displayrgb = (displayrgb + 100) / 200 * 255
displayrgb = displayrgb.astype('uint8')
# texts
font = cv2.FONT_HERSHEY_SIMPLEX
bottomLeftCornerOfText = (20, 20)
fontScale = 0.4
fontColor = (255, 255, 255)
cv2.putText(displayrgb,
'Time passed: ' + str(
(lidar_new[i]['t'][0, :] - lidar_new[0]['t'][0, :])) +
' Robot pose: ' + str(pr['best'][0, :]),
bottomLeftCornerOfText,
font,
fontScale,
fontColor,
thickness=1)
# ray ends of each scan
#displayrgb[ray_cell_x, ray_cell_y, 0] = 255
#displayrgb[ray_cell_x, ray_cell_y, 1]= 0
#displayrgb[ray_cell_x, ray_cell_y, 2] = 0
# all particles
'''
for p in range(pr['num']):
# meter to cell
cell_x, cell_y = mToCell(pr['odom'][p, 0], pr['odom'][p, 1], map)
cv2.circle(displayrgb, (cell_y, cell_x), 1, (255, 0, 255), -11)
'''
# raw odometry
arrowlen = 7
raw_cell_x, raw_cell_y = mToCell(lidar_new[i]['pose'][:, 0],
lidar_new[i]['pose'][:, 1], map)
cv2.circle(displayrgb, (raw_cell_y, raw_cell_x), 5, (255, 10, 0), -11)
end_x_raw = raw_cell_x + arrowlen * cos(lidar_new[i]['pose'][:, 2])
end_y_raw = raw_cell_y + arrowlen * sin(lidar_new[i]['pose'][:, 2])
cv2.arrowedLine(displayrgb, (raw_cell_y, raw_cell_x), \
(int(end_y_raw), int(end_x_raw)), (255, 10, 0), 5)
# optimized odometry (best particle)
cv2.circle(displayrgb, (rob_cell_y, rob_cell_x), 5, (0, 10, 255), -11)
end_x = rob_cell_x + arrowlen * cos(pr['best'][:, 2])
end_y = rob_cell_y + arrowlen * sin(pr['best'][:, 2])
cv2.arrowedLine(displayrgb, (rob_cell_y, rob_cell_x), \
(int(end_y), int(end_x)), (0, 10, 255), 5)
#display = cv2.applyColorMap(display, cv2.COLORMAP_BONE)
cv2.imshow(videoname, displayrgb)
key = cv2.waitKey(100)
video.write(displayrgb)
video.release()
cv2.destroyAllWindows()
def main():
# Load lidar and joint data
lidar_dat = ld.get_lidar('data/train_lidar3')
joint_dat = ld.get_joint('data/train_joint3')
# Match the joint index to lidar data
joint_ind = []
lidar_t = lidar_dat[0]['t']
for i in range(len(lidar_dat)):
joint_ind.append(np.argmin(np.abs(lidar_dat[i]['t'] - joint_dat['ts'])))
lidar_t = np.vstack((lidar_t, lidar_dat[i]['t']))
np.save('time_lidar.npy', lidar_t) # save time line of lidar
# Pick neck and head angles at only that timestep
neck = joint_dat['head_angles'][0, joint_ind]
head = joint_dat['head_angles'][1, joint_ind]
t = joint_dat['ts'][:, joint_ind]
# Initialize
pos0 = np.array([0, 0, 0])
q0 = np.array([1, 0, 0, 0])
rob = robot(pos0, q0)
t_start = 0
pos_arr = np.zeros((1, 2))
q_arr = np.array([1, 0, 0, 0])
T_arr = np.array([[1, 0, 0, 0], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]])
for i in range(t_start, t.shape[1] - 1):
# Find the current pose
T_cur = h.qp2homo(rob.q, rob.pos)
# Odometry to get postion action
# Get rot_act from rpy
pos_next = lidar_dat[i + 1]['pose'][0]
pos_next = np.array([pos_next[0], pos_next[1], 0])
rpy_next = lidar_dat[i + 1]['rpy'][0]
q_next = h.rpy2quat(rpy_next[0], rpy_next[1], rpy_next[2])
T_next = h.qp2homo(q_next, pos_next)
# Get the control action
T_act = np.dot(np.linalg.inv(T_cur), T_next)
q_act, pos_act = h.homo2qp(T_act)
# motion model
rob.predict(q_act, pos_act)
# update pos and quaternion array
pos_arr = np.vstack((pos_arr, np.array([rob.pos[0], rob.pos[1]])))
q_arr = np.vstack((q_arr, np.array(rob.q)))
# update homogeneous transformation array
T_cur = np.linalg.inv(h.Tcam2w(rob, head[i], neck[i]))
T_arr = np.vstack((T_arr, T_cur))
# store data
np.save('pos_pred.npy', pos_arr)
np.save('q_pred.npy', q_arr)
np.save('T_pred.npy', T_arr)
# show the predicted trajectory
fig1 = plt.figure(1)
plt.plot(pos_arr[:, 0], pos_arr[:, 1])
plt.show()
while resampleid[0, ip] > cumlatedWeight[0, ind]:
ind += 1
# use this index
inds.append(ind)
particle = particle[:, inds]
# init weight for resampled particles
weight = np.zeros((1, Np)) + 1.0 / Np
return particle, weight
if __name__ == "__main__":
l0 = ld.get_lidar('lidar/train_lidar4')
l0_len = len(l0)
U = mapping.get_body_pose_inWorld(l0)
# use one data every 20 data
segment = 15
j0 = ld.get_joint('joint/train_joint4')
# 25 particles
Np = 25
#init particles, weights, map, control input, pose and motion trjectory
particle = np.zeros((3, Np))
weight = np.ones((1, Np)) / Np
px = U[:, 0:1]
px_h = px
body2world_pose = np.hstack((body2world_rot,np.array([lidar_pose[0],lidar_pose[1],0.93]).reshape(3,1)))
body2world_pose = np.vstack((body2world_pose,np.array([0,0,0,1]).reshape(1,4)))
body_pose = head2body_pose @ lid2head_pose @ lidar_scan
###### Filtering Out Ground Points ######
body_pose_T = body_pose.T
body_pose_corrected = body_pose_T[np.where(body_pose[2,:] > 0)]
body_pose_corrected = body_pose_corrected.T
return body2world_pose @ body_pose_corrected
if __name__ == '__main__':
lidar_data = get_lidar("lidar/train_lidar0")
#Pose is already in world frame and scan has to be shifted to world frame
print("Read Lidar Data")
MAP = init_map()
print("Map intialized")
#lidar_data = sorted(lidar_data.items(),key = lambda k: k['t'][0])
#print("Sorted Lidar Data")
odometry_data = get_joint("joint/train_joint0")
print("Loaded Odometry data")
slam(lidar_data,odometry_data,MAP)
def createMap(fileNumber):
lidarFilename = 'data/train_lidar'+fileNumber
jointFileName = 'data/train_joint'+fileNumber
lidarData = ld.get_lidar(lidarFilename)
jointData = ld.get_joint(jointFileName)
#find all the joint times
allJointTimes = jointData['ts'][0]
#find all the head angles from joint data
headAngles = jointData['head_angles']
#get the total number of timestamps
numTimeStamps = len(lidarData)
# init MAP
MAP = {}
MAP['res'] = 0.05 # meters
MAP['xmin'] = -20 # meters
MAP['ymin'] = -20
MAP['xmax'] = 20
MAP['ymax'] = 20
MAP['sizex'] = int(np.ceil((MAP['xmax'] - MAP['xmin']) / MAP['res'] + 1)) # cells
MAP['sizey'] = int(np.ceil((MAP['ymax'] - MAP['ymin']) / MAP['res'] + 1))
MAP['map'] = np.zeros((MAP['sizex'], MAP['sizey']), dtype=np.double) # DATA TYPE: char or int8
deadReckoningPoses = deadReckoning(fileNumber)
for i in range(0,numTimeStamps,100):
#load the data for this timestamp
dataI = lidarData[i]
#find the thetas
theta = np.array([np.arange(-135,135.25,0.25)*np.pi/180.])
#get the scan at this point
di = np.array(dataI['scan'])
# take valid indices
# indValid = np.logical_and((di < 30), (di > 0.1))
# theta = theta[indValid]
# di = di[indValid]
#find the position of the head at this time
rHead = np.vstack([di * np.cos(theta), di * np.sin(theta), np.zeros((1,1081)),np.ones((1,1081))])
#find the time stamp
ts = dataI['t'][0][0]
#find the closest joint based on the absolute time
idx = findIndexOfCloestTimeFrame(allJointTimes,ts)
#find the head angles of the closest times
neckAngle = headAngles[0][idx]
headAngle = headAngles[1][idx]
#find the position of the body at this time
dNeck = .15
rotNeck = rotzHomo(neckAngle,0,0,dNeck)
rotHead = rotyHomo(headAngle)
rBody = np.dot(np.dot(rotNeck,rotHead),rHead)
#get the body roll and pitch angles
rollBody = jointData['rpy'][0][i]
pitchBody = jointData['rpy'][1][i]
rotBodyRoll = rotxHomo(rollBody,0,0,0)
rotBodyPitch = rotyHomo(pitchBody)
#apply the body roll and pitch angles
rBody = np.dot(rotBodyPitch,np.dot(rotBodyRoll,rBody))
#get the dead recokoned poses
xPose = deadReckoningPoses[i][0]
yPose = deadReckoningPoses[i][1]
thetaPose = deadReckoningPoses[i][2]
#find the yaw and pitch angle of the lidar
rpy = np.array(dataI['rpy']).T
yawAngle = rpy[2]
#convert from the body frame to the global frame
dBody = .93 + .33
rotGlobal = rotzHomo(yawAngle,xPose,yPose,dBody)
rGlobal = np.dot(rotGlobal,rBody)
#remove the data of the lidar hitting the ground
rGlobal = rGlobal[:,(rGlobal[2,:] >= 1E-4)]
#convert to cells
xs0 = rGlobal[0,:]
ys0 = rGlobal[1,:]
xis = np.ceil((xs0 - MAP['xmin']) / MAP['res']).astype(np.int16) - 1
yis = np.ceil((ys0 - MAP['ymin']) / MAP['res']).astype(np.int16) - 1
xPose = np.ceil((xPose - MAP['xmin']) / MAP['res']).astype(np.int16) - 1
yPose = np.ceil((yPose - MAP['xmin']) / MAP['res']).astype(np.int16) - 1
#run getMapCellsFromRay to get points that are unoccupied
cells = getMapCellsFromRay(xPose,yPose,xis,yis)
xsFree = np.int_(cells[0,:])
ysFree = np.int_(cells[1,:])
#find all the occupied cells
xsOcc = xis
ysOcc = yis
#increase log odds of unoccupied cells to the map with log odds
indGood = np.logical_and(np.logical_and(np.logical_and((xsFree > 1), (ysFree > 1)), (xsFree < MAP['sizex'])), (ysFree < MAP['sizey']))
logOddsStepDecease = .008
MAP['map'][xsFree[indGood], ysFree[indGood]] = MAP['map'][xsFree[indGood], ysFree[indGood]] - logOddsStepDecease
#decrease log odds of occupied cells
indGoodOcc = np.logical_and(np.logical_and(np.logical_and((xsOcc > 1), (ysOcc > 1)), (xsOcc < MAP['sizex'])), (ysOcc < MAP['sizey']))
logOddsStepIncrease = .05
MAP['map'][xsOcc[indGoodOcc], ysOcc[indGoodOcc]] = MAP['map'][xsOcc[indGoodOcc], ysOcc[indGoodOcc]] + logOddsStepIncrease
#show the map
plt.imshow(MAP['map'], cmap="hot");
posesX = np.ceil((deadReckoningPoses[:,0] - MAP['xmin']) / MAP['res']).astype(np.int16) - 1
posesY = np.ceil((deadReckoningPoses[:,1] - MAP['ymin']) / MAP['res']).astype(np.int16) - 1
#show the dead reckoned poses
plt.scatter(posesX,posesY)
plt.show()
# specify dataset suffix, set to str() if dataset has no numeric suffix
dataset = str(1)
# specify prefix of folder to read file from. E.g. set to "train" for "trainset" folder
folder_prefix = "train"
####################################################################################################
# LOAD DATA #
####################################################################################################
# load lidar and joint data
folder = folder_prefix + "set"
print "\nLoading lidar data..."
lidar_filename = folder + "/lidar/" + folder_prefix + "_lidar" + len(
dataset) * dataset
lidars = load.get_lidar(lidar_filename)
print "Done!\n"
print "Loading joint data..."
joint_filename = folder + "/joint/" + folder_prefix + "_joint" + len(
dataset) * dataset
joint = load.get_joint(joint_filename)
print "Done!\n"
# load RGB and DEPTH data
print "Attempting to load RGB and DEPTH data..."
rgb_exists = False
RGBs = []
depths = []
try:
load_depth = True
RGB_folder = folder + "/cam"
# Jinwook Huh
import load_data as ld
import p3_util as ut
acc_x, acc_y, acc_z, gyro_x, gyro_y, gyro_z, imu_ts = ld.get_imu('imuRaw20')
FR, FL, RR, RL,enc_ts = ld.get_encoder('Encoders20')
lidar = ld.get_lidar('Hokuyo20')
ut.replay_lidar(lidar)
def texture_mapping(MAP, w_T_b_best):
IRCalib = getIRCalib()
Matrix_IRCalib = np.array([[
IRCalib['fc'][0], IRCalib['ac'] * IRCalib['fc'][0], IRCalib['cc'][0]
], [0, IRCalib['fc'][1], IRCalib['cc'][1]], [0, 0, 1]])
RGBCalib = getRGBCalib()
Matrix_RGBCalib = np.array([[
RGBCalib['fc'][0], RGBCalib['ac'] * RGBCalib['fc'][0],
RGBCalib['cc'][0]
], [0, RGBCalib['fc'][1], RGBCalib['cc'][1]], [0, 0, 1]])
exIR_RGB = getExtrinsics_IR_RGB()
l0 = get_lidar("lidar/train_lidar0")
r0 = get_rgb("cam/RGB_0")
d0 = get_depth("cam/DEPTH_0")
lidar_t = []
depth_t = []
Tneck = np.zeros((4, 4))
Thead = np.zeros((4, 4))
for i in range(len(l0)):
lidar_t1 = np.array(l0[i]['t'][0])
lidar_t.append(lidar_t1)
for j in range(len(d0)):
depth_t1 = np.array(d0[j]['t'][0])
depth_t.append(depth_t1)
rgb_it = [r['image'] for r in r0]
rgb_angle = [r['head_angles'] for r in r0]
rgb_neck = rgb_angle[0]
rgb_head = rgb_angle[1]
depth_dt = [d['depth'] for d in d0]
############## do the time alignment for lidar time compare with depth time
xxx = np.array((lidar_t))
yyy = np.array((depth_t))
xx = np.array(([l[0] for l in xxx]))
yy = np.array(([l[0] for l in yyy]))
idx1 = np.searchsorted(xx, yy, side="left").clip(max=xx.size - 1)
mask = (idx1 > 0) & \
((idx1 == len(xx)) | (np.fabs(yy - xx[idx1 - 1]) < np.fabs(yy - xx[idx1])))
##### the index is the resulting lidar timestamp index that has the closest time step as the depth's timestamp
index1 = np.array((idx1 - mask)).tolist()
#print(index)
# transform from ir to rgb frame rgb T_ir
rgb_T_ir = np.zeros((4, 4))
rgb_T_ir[0:3, 0:3] = exIR_RGB['rgb_R_ir']
rgb_T_ir[0, 3] = exIR_RGB['rgb_T_ir'][0]
rgb_T_ir[1, 3] = exIR_RGB['rgb_T_ir'][1]
rgb_T_ir[2, 3] = exIR_RGB['rgb_T_ir'][2]
rgb_T_ir[3, 3] = 1
# tranform from rgb to body frame b_T_rgb
# use the idxs to track the
Rn = euler2mat(0, 0, rgb_neck, axes='sxyz')
Tneck[0:3, 0:3] = Rn
Tneck[0, 3] = 0
Tneck[1, 3] = 0
Tneck[2, 3] = 0.07
Tneck[3, 3] = 1
Rh = euler2mat(0, rgb_head, 0, axes='sxyz')
Thead[0:3, 0:3] = Rh # transform from lidar to body frame
Thead[0, 3] = 0
Thead[1, 3] = 0
Thead[2, 3] = 0.33
Thead[3, 3] = 1
b_T_rgb = np.dot(Thead, Tneck)
# w_T_b is the current best particle
w_T_c_rgb = np.dot(w_T_b_best, b_T_rgb)
o_T_c = np.array([[0, -1, 0, 0], [0, 0, -1, 0], [1, 0, 0, 0], [0, 0, 0,
1]])
map_x = MAP['sizex']
map_y = MAP['sizey']
my_x = map_x.tolist()
my_y = map_y.tolist()
tmt = np.zeros((MAP['sizex'], MAP['sizey'], 3))
#tmt[my_x, my_y, 0] =
#tmt[my_x, my_y, 1] =
#tmt[my_x, my_y, 2] =
return tmt
def SLAM(lidarFilepath, jointFilepath):
#get the data
lidarData = ld.get_lidar(lidarFilepath)
jointData = ld.get_joint(jointFilepath)
#find all the joint times
allJointTimes = jointData['ts'][0]
#find all the head angles from joint data
headAngles = jointData['head_angles']
#get the total number of timestamps
numTimeStamps = len(lidarData)
# init MAP
MAP = {}
MAP['res'] = 0.05 # meters
MAP['xmin'] = -20 # meters
MAP['ymin'] = -20
MAP['xmax'] = 20
MAP['ymax'] = 20
MAP['sizex'] = int(np.ceil((MAP['xmax'] - MAP['xmin']) / MAP['res'] +
1)) # cells
MAP['sizey'] = int(np.ceil((MAP['ymax'] - MAP['ymin']) / MAP['res'] + 1))
MAP['map'] = np.zeros((MAP['sizex'], MAP['sizey']),
dtype=np.double) # DATA TYPE: char or int8
# x-positions of each pixel of the map
x_im = np.arange(MAP['xmin'], MAP['xmax'] + MAP['res'], MAP['res'])
# y-positions of each pixel of the map
y_im = np.arange(MAP['ymin'], MAP['ymax'] + MAP['res'], MAP['res'])
# find the thetas
theta = np.array([np.arange(-135, 135.25, 0.25) * np.pi / 180.])
# number of particles
numParticles = 150
# instantiate the particles
particlePoses = np.zeros((numParticles, 3))
weights = (1.0 / numParticles) * np.ones((numParticles, ))
fig = plt.figure()
im = plt.imshow(MAP['map'], cmap="hot", animated=True)
#all predicted robot positions
finalPoses = np.zeros((numTimeStamps, 4))
stride = 300
for i in range(0, numTimeStamps - stride, stride):
#load the data for this timestamp
dataI = lidarData[i]
#get the scan at this point
di = np.array(dataI['scan'])
# take valid indices
# indValid = np.logical_and((di < 30), (di > 0.1))
# theta = theta[indValid]
# di = di[indValid]
#find the position of the head at this time
rHead = np.vstack([
di * np.cos(theta), di * np.sin(theta),
np.zeros((1, 1081)),
np.ones((1, 1081))
])
#find the time stamp
ts = dataI['t'][0][0]
#find the closest joint based on the absolute time
idx = findIndexOfCloestTimeFrame(allJointTimes, ts)
#find the head angles of the closest times
neckAngle = headAngles[0][idx]
headAngle = headAngles[1][idx]
#find the position of the body at this time
dNeck = .15
rotNeck = rotzHomo(neckAngle, 0, 0, dNeck)
rotHead = rotyHomo(headAngle)
rBody = np.dot(np.dot(rotNeck, rotHead), rHead)
#get the body roll and pitch angles
rollBody = jointData['rpy'][0][i]
pitchBody = jointData['rpy'][1][i]
rotBodyRoll = rotxHomo(rollBody, 0, 0, 0)
rotBodyPitch = rotyHomo(pitchBody)
#apply the body roll and pitch angles
rBody = np.dot(rotBodyPitch, np.dot(rotBodyRoll, rBody))
#get the pose of the best particle p*
indexOfBest = np.argmax(weights)
position = particlePoses[indexOfBest, :]
#get the position of the best particles
xPose = position[0]
yPose = position[1]
thetaPose = position[2]
#add the current prediction of x y to numTimeStepsx2 matrix to plot later
finalPoses[i][0] = ts
finalPoses[i][1] = xPose
finalPoses[i][2] = yPose
finalPoses[i][3] = thetaPose
#find the yaw and pitch angle of IMU rpy
rpy = np.array(dataI['rpy']).T
yawAngle = rpy[2]
#convert from the body frame to the global frame
dBody = .93 + .33
rotGlobal = rotzHomo(yawAngle, xPose, yPose, dBody)
rGlobal = np.dot(rotGlobal, rBody)
#remove the data of the lidar hitting the ground
rGlobal = rGlobal[:, (rGlobal[2, :] >= 1E-4)]
#convert to cells
xs0 = rGlobal[0, :]
ys0 = rGlobal[1, :]
xis = np.ceil((xs0 - MAP['xmin']) / MAP['res']).astype(np.int16) - 1
yis = np.ceil((ys0 - MAP['ymin']) / MAP['res']).astype(np.int16) - 1
xPose = np.ceil(
(xPose - MAP['xmin']) / MAP['res']).astype(np.int16) - 1
yPose = np.ceil(
(yPose - MAP['xmin']) / MAP['res']).astype(np.int16) - 1
#run getMapCellsFromRay to get points that are unoccupied
cells = getMapCellsFromRay(xPose, yPose, xis, yis)
xsFree = np.int_(cells[0, :])
ysFree = np.int_(cells[1, :])
#find all the occupied cells
xsOcc = xis
ysOcc = yis
#increase log odds of unoccupied cells to the map with log odds
indGood = np.logical_and(
np.logical_and(np.logical_and((xsFree > 1), (ysFree > 1)),
(xsFree < MAP['sizex'])), (ysFree < MAP['sizey']))
logOddsStepDecease = 1 #np.log(.8/.3)
MAP['map'][xsFree[indGood], ysFree[indGood]] = MAP['map'][
xsFree[indGood], ysFree[indGood]] - logOddsStepDecease
#decrease log odds of occupied cells
indGoodOcc = np.logical_and(
np.logical_and(np.logical_and((xsOcc > 1), (ysOcc > 1)),
(xsOcc < MAP['sizex'])), (ysOcc < MAP['sizey']))
logOddsStepIncrease = 3 #np.log(.7/.2)#.05
MAP['map'][xsOcc[indGoodOcc], ysOcc[indGoodOcc]] = MAP['map'][
xsOcc[indGoodOcc], ysOcc[indGoodOcc]] + logOddsStepIncrease
#do localization prediction
# get the odometry for the i data
odomCurr = np.array(dataI['pose']).T
xOdom = odomCurr[0][0]
yOdom = odomCurr[1][0]
thetaOdom = odomCurr[2][0]
currOdomPose = np.array([xOdom, yOdom]).T
# get the odometry for the i+1 data
odomNext = np.array(lidarData[i + stride]['pose']).T
nextXOdom = odomNext[0][0]
nextYOdom = odomNext[1][0]
nextThetaOdom = odomNext[2][0]
nextOdomPose = np.array([nextXOdom, nextYOdom]).T
#do prediction step for particles to get particle posotions at t+1
particlePoses = deadReckoning(particlePoses, currOdomPose, thetaOdom,
nextOdomPose, nextThetaOdom)
#do localization update and get updated weights for particles
for particleI in range(0, numParticles):
#get particleI at time t+1
particle = particlePoses[particleI, :]
#get x and y positions of particle at time t+1
particleX = particle[0]
particleY = particle[1]
#create a 9x9 window around the particle position
x_range = np.arange(particleX - 0.2, particleX + 0.2, 0.05)
y_range = np.arange(particleY - 0.2, particleY + 0.2, 0.05)
#get the correlation between window and the map
corr = mapCorrelation(MAP['map'], x_im, y_im, rGlobal[0:3, :],
x_range, y_range)
maxCorr = np.max(corr[:])
oldWeight = weights[particleI]
#get the new weight
newWeight = oldWeight * maxCorr
#update new weight in weights
weights[particleI] = newWeight
#normalize the weights
weights = weights / np.sum(weights)
#resample the particles
Neff = 1.0 / np.sum(weights**2)
Nthresh = 20
#do uniform sampling
if Neff < Nthresh:
weights = (1.0 / numParticles) * np.ones((numParticles, ))
#if you want to visualize progress happening
#print i
#show the map
plt.imshow(MAP['map'], cmap="hot")
#show the localized path
posesX = np.ceil(
(finalPoses[:, 1] - MAP['xmin']) / MAP['res']).astype(np.int16) - 1
posesY = np.ceil(
(finalPoses[:, 2] - MAP['ymin']) / MAP['res']).astype(np.int16) - 1
plt.scatter(posesX, posesY, s=2)
#show the plot
plt.show()
#save the poses and map as a pickle file
with open('allPoses.pickle', 'wb') as handle:
pickle.dump(finalPoses, handle, protocol=pickle.HIGHEST_PROTOCOL)
with open('finalMap.pickle', 'wb') as handle:
pickle.dump(MAP, handle, protocol=pickle.HIGHEST_PROTOCOL)
#Specify map properties
resolution = .05
xmin = -40
ymin = -40
xmax = 40
ymax = 40
numParticle = 10
N_threshold = 35
yRange = np.arange(-resolution, resolution + 0.01, resolution)
xRange = np.arange(-resolution, resolution + 0.01, resolution)
depthFolder = 'C:/Users/Baoqian Wang/Google Drive/cam/DEPTH_0'
rgbFolder = 'C:/Users/Baoqian Wang/Google Drive/cam/RGB_0'
depthImageList = ld.get_depth(depthFolder)
rgbImageList = ld.get_rgb(rgbFolder)
#Initialize ParticleSlam object
particleSlam = ParticleFilterSlam(numParticle, N_threshold, resolution,
xmin, ymin, xmax, ymax, xRange, yRange)
# Get lidar data
lidar = ld.get_lidar("./lidar/train_lidar0")
# Get the head angles data
joint = ld.get_joint("./joint/train_joint0")
IRcalibration = ld.getIRCalib()
# Run the SLAM
MAP, bestParticles = particleSlam.slam(lidar, joint, rgbImageList,
depthImageList)
#fig1 = plt.figure(2)
#plt.imshow(MAP['show_map'], cmap = "hot")
#plt.show()
R = rgb_data[k]['image']
R = np.fliplr(R)
plt.imshow(R)
plt.draw()
plt.pause(0.001)
def get_joint_index(joint):
jointNames = [
'Neck', 'Head', 'ShoulderL', 'ArmUpperL', 'LeftShoulderYaw',
'ArmLowerL', 'LeftWristYaw', 'LeftWristRoll', 'LeftWristYaw2',
'PelvYL', 'PelvL', 'LegUpperL', 'LegLowerL', 'AnkleL', 'FootL',
'PelvYR', 'PelvR', 'LegUpperR', 'LegLowerR', 'AnkleR', 'FootR',
'ShoulderR', 'ArmUpperR', 'RightShoulderYaw', 'ArmLowerR',
'RightWristYaw', 'RightWristRoll', 'RightWristYaw2', 'TorsoPitch',
'TorsoYaw', 'l_wrist_grip1', 'l_wrist_grip2', 'l_wrist_grip3',
'r_wrist_grip1', 'r_wrist_grip2', 'r_wrist_grip3', 'ChestLidarPan'
]
joint_idx = 1
for (i, jnames) in enumerate(joint):
if jnames in jointNames:
joint_idx = i
break
return joint_idx
if __name__ == "__main__":
train_joint3 = ld.get_joint("data/train/train_joint3")
train_lidar0 = ld.get_lidar("data/train/train_lidar0")
replay_lidar(train_lidar0)
ly = (np.ceil((laser_Wpose[1][i] - ymin) / 0.05)).astype(np.int16) - 1
bx = (np.ceil((body_Wpose[0][0] - xmin) / 0.05)).astype(np.int16) - 1
by = (np.ceil((body_Wpose[1][0] - ymin) / 0.05)).astype(np.int16) - 1
# use bresenham algorithm to get free cells
r = p2.bresenham2D(bx, by, lx, ly)
# log-odds
map[lx, ly] += np.log(4)
map[r[0].astype(np.int16), r[1].astype(np.int16)] += np.log(0.8)
return map
if __name__ == "__main__":
l0 = ld.get_lidar("lidar/train_lidar2")
j0 = ld.get_joint("joint/train_joint2")
body_Wpose = get_body_pose_inWorld(l0)
map = get_Occmap(l0, j0, -20, 20, -20, 20, 0.05, 0, body_Wpose[:, 0:1])
map_index = np.where(map > 0)
map_indexn = np.where(map < 0)
map_vi = np.zeros(map.shape)
map_vi[map_index] = 1
map_vi[map_indexn] = 0
plt.imshow(map_vi, cmap="hot")
plt.title("Occupancy map")
plt.xlabel('y--0.05m/cell')
plt.ylabel('x--0.05m/cell')
plt.show()
sns.heatmap(map, center=0, vmin=-5, vmax=5)
plt.xlabel('y--0.05m/cell')
import load_data as ld
import numpy as np
from SLAM_helper import *
import matplotlib.pyplot as plt
import MapUtils as maput
import cv2
import random
####Dataset####
joint = ld.get_joint("data/train_joint2")
lid = ld.get_lidar("data/train_lidar2")
itv = 1 # of skip in drawing maps
###############
angles = np.array([np.arange(-135, 135.25, 0.25) * np.pi / 180.0])
N, N_threshold = 100, 35
particles = np.zeros((N, 3))
weight = np.einsum('..., ...', 1.0 / N, np.ones((N, 1)))
mapfig = {}
mapfig['res'] = 0.05
mapfig['xmin'] = -40
mapfig['ymin'] = -40
mapfig['xmax'] = 40
mapfig['ymax'] = 40
mapfig['sizex'] = int(
np.ceil((mapfig['xmax'] - mapfig['xmin']) / mapfig['res'] + 1))
def load_obj(name):
with open('obj/' + name + '.pkl', 'rb') as f:
return pickle.load(f)
def roundup(x,t_jump):
return int(m.ceil(x / t_jump)) * t_jump
video_gen = True
# Set start time and step size
t_start = 0
t_jump = 10
# Load lidar and joint data
lidar_dat = ld.get_lidar('data/test_lidar')
joint_dat = ld.get_joint('data/test_joint')
# theta = np.arange(0,270.25,0.25)*np.pi/float(180)
# ax = plt.subplot(111, projection='polar')
# ax.plot(theta, lidar_dat[0]['scan'][0])
# ax.set_rmax(10)
# ax.set_rticks([0.5, 1, 1.5, 2]) # less radial ticks
# ax.set_rlabel_position(-22.5) # get radial labels away from plotted line
# ax.grid(True)
# ax.set_title("Lidar scan data", va='bottom')
# plt.show()
# quit()
if video_gen:
img_dat1 = ld.get_rgb('data/test/RGB_1')
def deadReckoning(fileNumber,noise = np.zeros((3,1))):
lidarFilename = 'data/train_lidar' + fileNumber
lidarData = ld.get_lidar(lidarFilename)
# get the total number of timestamps
numTimeStamps = len(lidarData)
#instantiate initial guess of X and of theta
initPose = np.array(lidarData[0]['pose']).T
xMinus = np.array([initPose[0][0], initPose[1][0], 0]).T
thetaMinus = initPose[2][0]
allPts = np.empty((numTimeStamps,3))
for i in range(1, numTimeStamps-1):
#load the data for this timestamp
dataI = lidarData[i]
#get the pose at time t
pose = np.array(dataI['pose']).T
xPose = pose[0][0]
yPose = pose[1][0]
thetaPose = pose[2][0]
pt = np.array([xPose, yPose,0]).T
#get the pose at time t+1
nextPose = np.array(lidarData[i+1]['pose']).T
nextXPose = nextPose[0][0]
nextYPose = nextPose[1][0]
nextThetaPose = nextPose[2][0]
nextPt = np.array([nextXPose, nextYPose,0]).T
#get the delta pose and delta thetas
diffVectors = nextPt - pt
rotMatrix = rotz(thetaPose)
deltaX = np.dot(rotMatrix.T,diffVectors)
deltaTheta = nextThetaPose - thetaPose
#now go back to global
xPlus = np.dot(rotz(thetaMinus),deltaX)+ xMinus
thetaPlus = thetaMinus + deltaTheta
xNew = xPlus[0]
yNew = xPlus[1]
#add the noise
thetaPlus = thetaPlus + noise[2,0]
xPlus = xPlus + np.hstack((noise[0:2,0],0))
#set thetaPlus equal to thetaMinus and
thetaMinus = thetaPlus
xMinus = xPlus
#return the allpts
allPts[i,0] = xNew
allPts[i,1] = yNew
allPts[i,2] = thetaMinus
# plt.scatter(allPts[:,0],allPts[:,1],s=1)
# plt.show()
return allPts
#x_range=np.arange(-0.2,0.2+0.05,0.05)
#y_range=np.arange(-0.2,0.2+0.05,0.05) # for training set
x_im = np.arange(MAP['xmin'], MAP['xmax'] + MAP['res'], MAP['res'])
y_im = np.arange(MAP['ymin'], MAP['ymax'] + MAP['res'], MAP['res'])
N = 100 #change to 200 particles for training set 2 to get better map
timestep = 100 # pick small value,i.e. 20 for the timestep, will get a pretty clear map but with a long time
trajectory = []
##################################### Read data ########################################
j0 = get_joint("joint/train_joint0")
l0 = get_lidar("lidar/train_lidar0")
# r0 = get_rgb("cam/RGB_0")
# d0 = get_depth("cam/DEPTH_0")
# exIR_RGB = getExtrinsics_IR_RGB()
# IRCalib = getIRCalib()
# RGBCalib = getRGBCalib()
# visualize data
# replay_lidar(l0)
# replay_rgb(r0)
l0_pose = [l['pose'] for l in l0]
l0_scan = [l['scan'] for l in l0]
j0_angle = j0['head_angles']
j0_neck = j0_angle[0]
j0_head = j0_angle[1]
