Example #1
0
def main(scene_idx=0):

	#scene_idx = 0

	mapper_scene2z = get_mapper()
	mapper_scene2points = get_mapper_scene2points()
	Train_Scenes, Test_Scenes = get_train_test_scenes()
	scene_name = Test_Scenes[scene_idx]
	num_startPoints = len(mapper_scene2points[scene_name])
	num_steps = 35

	## create test folder
	test_folder = '/home/reza/Datasets/GibsonEnv/my_code/visual_servoing/test_IBVS'
	'''
	approach_folder = '{}/SIFT_interMatrix_gtDepth_Vz_OmegaY'.format(test_folder)
	create_folder(approach_folder)

	scene_folder = '{}/{}'.format(approach_folder, scene_name)
	create_folder(scene_folder)
	'''
	f = open('{}/{}_{}.txt'.format(test_folder, perception_rep, depth_method), 'a')
	f.write('scene_name = {}\n'.format(scene_name))
	list_count_correct = []
	list_count_runs = []
	list_count_steps = []

	## rrt functions
	## first figure out how to sample points from rrt graph
	rrt_directory = '/home/reza/Datasets/GibsonEnv/gibson/assets/dataset/{}_for_rrt'.format(scene_name)
	path_finder = rrt.PathFinder(rrt_directory)
	path_finder.load()
	num_nodes = len(path_finder.nodes_x)
	free = cv2.imread('/home/reza/Datasets/GibsonEnv/gibson/assets/dataset/{}_for_rrt/free.png'.format(scene_name), 0)

	## GibsonEnv setup
	## For Gibson Env
	import gym, logging
	from mpi4py import MPI
	from gibson.envs.husky_env import HuskyNavigateEnv
	from baselines import logger
	import skimage.io
	from transforms3d.euler import euler2quat
	config_file = os.path.join('/home/reza/Datasets/GibsonEnv/my_code/CVPR_workshop', 'env_yamls', '{}_navigate.yaml'.format(scene_name))
	env = HuskyNavigateEnv(config=config_file, gpu_count = 1)
	obs = env.reset() ## this line is important otherwise there will be an error like 'AttributeError: 'HuskyNavigateEnv' object has no attribute 'potential''

	def get_obs(current_pose):
		pos, orn = func_pose2posAndorn(current_pose, mapper_scene2z[scene_name])
		env.robot.reset_new_pose(pos, orn)
		obs, _, _, _ = env.step(4)
		obs_rgb = obs['rgb_filled']
		obs_depth = obs['depth']
		return obs_rgb.copy(), obs_depth.copy()

	base_folder = '/home/reza/Datasets/GibsonEnv/my_code/visual_servoing/sample_image_pairs_{}'.format('test')

	## go through each point folder
	for point_idx in range(0, num_startPoints):
	#for point_idx in range(0, 1):
		print('point_idx = {}'.format(point_idx))

		#point_folder = '{}/point_{}'.format(scene_folder, point_idx)
		#create_folder(point_folder)

		## read in start img and start pose
		point_image_folder = '{}/{}/point_{}'.format(base_folder, scene_name, point_idx)
		point_pose_npy_file = np.load('{}/{}/point_{}_poses.npy'.format(base_folder, scene_name, point_idx))

		start_img = cv2.imread('{}/{}.png'.format(point_image_folder, point_pose_npy_file[0]['img_name']))[:, :, ::-1]
		start_pose = point_pose_npy_file[0]['pose']

		## index 0 is the left image, so right_img_idx starts from index 1
		count_correct = 0
		list_correct_img_names = []
		list_whole_stat = []
		list_steps = []

		for right_img_idx in range(1, len(point_pose_npy_file)):
		#for right_img_idx in range(1, 11):
			flag_correct = False
			print('right_img_idx = {}'.format(right_img_idx))

			count_steps = 0

			current_pose = start_pose
			
			right_img_name = point_pose_npy_file[right_img_idx]['img_name']
			goal_pose = point_pose_npy_file[right_img_idx]['pose']
			goal_img, goal_depth = get_obs(goal_pose)

			list_result_poses = [current_pose]
			num_matches = 0
			flag_broken = False
			while count_steps < num_steps:
				current_img, current_depth = get_obs(current_pose)
				noise = np.random.normal(0.0, 0.5, (256, 256))
				current_depth[:, :, 0] += noise
				try:
					kp1, kp2 = detect_correspondences(current_img, goal_img)
					if count_steps == 0:
						start_depth = current_depth.copy()
				except:
					print('run into error')
					break
				num_matches = kp1.shape[1]

				vx, vz, omegay, flag_stop = compute_velocity_through_correspondences_and_depth(kp1, kp2, current_depth)

				previous_pose = current_pose
				current_pose, _, _, flag_stop_goToPose = goToPose_one_step(current_pose, vx, vz, omegay)

				## check if there is collision during the action
				left_pixel = path_finder.point_to_pixel((previous_pose[0], previous_pose[1]))
				right_pixel = path_finder.point_to_pixel((current_pose[0], current_pose[1]))
				# rrt.line_check returns True when there is no obstacle
				if not rrt.line_check(left_pixel, right_pixel, free):
					flag_broken = True
					print('run into an obstacle ...')
					break

				## check if we should stop or not
				if flag_stop or flag_stop_goToPose:
					print('flag_stop = {}, flag_stop_goToPose = {}'.format(flag_stop, flag_stop_goToPose))
					print('break')
					break

				count_steps += 1
				list_result_poses.append(current_pose)
				## sample current_img again to save in list_obs
				current_img, current_depth = get_obs(current_pose)
			#assert 1==2
			## decide if this run is successful or not
			flag_correct, dist, theta_change = similar_location_under_certainThreshold(goal_pose, list_result_poses[count_steps])
			print('dist = {}, theta = {}'.format(dist, theta_change))
			#print('start_pose = {}, final_pose = {}, goal_pose = {}'.format(start_pose, list_result_poses[-1], goal_pose))
			if flag_correct:
				count_correct += 1
				list_correct_img_names.append(right_img_name[10:])

			if flag_correct: 
				str_succ = 'Success'
				print('str_succ = {}'.format(str_succ))
			else:
				str_succ = 'Failure'
				print('str_succ = {}'.format(str_succ))

			list_steps.append(len(list_result_poses))

			## ===================================================================================================================
			## plot the pose graph
			'''
			img_name = 'goTo_{}.jpg'.format(right_img_name[10:])
			print('img_name = {}'.format(img_name))

			## plot the poses
			free2 = cv2.imread('/home/reza/Datasets/GibsonEnv/gibson/assets/dataset/{}_for_rrt/free.png'.format(scene_name), 1)
			rows, cols, _ = free2.shape
			plt.imshow(free2)

			for m in range(len(list_result_poses)):
				pose = list_result_poses[m]
				x, y = path_finder.point_to_pixel((pose[0], pose[1]))
				theta = pose[2]
				plt.arrow(x, y, cos(theta), sin(theta), color='y', \
					overhang=1, head_width=0.1, head_length=0.15, width=0.001)
			## draw goal pose
			x, y = path_finder.point_to_pixel((goal_pose[0], goal_pose[1]))
			theta = goal_pose[2]
			plt.arrow(x, y, cos(theta), sin(theta), color='r', \
					overhang=1, head_width=0.1, head_length=0.15, width=0.001)

			plt.axis([0, cols, 0, rows])
			plt.xticks([])
			plt.yticks([])
			plt.title('{}, start point_{}, goal viewpoint {}, {}\n dist = {:.4f} meter, theta = {:.4f} degree\n'.format(scene_name, point_idx, right_img_name[10:], str_succ, dist, theta_change))
			plt.savefig('{}/{}'.format(point_folder, img_name), bbox_inches='tight', dpi=(400))
			plt.close()

			## ======================================================================================================================
			## save stats
			current_test_dict = {}
			current_test_dict['img_name'] = right_img_name
			current_test_dict['success_flag'] = flag_correct
			current_test_dict['dist'] = dist
			current_test_dict['theta'] = theta_change
			current_test_dict['steps'] = count_steps
			current_test_dict['collision'] = flag_broken

			list_whole_stat.append(current_test_dict)


		np.save('{}/runs_statistics.npy'.format(point_folder), list_whole_stat)

		success_rate = 1.0 * count_correct / (len(point_pose_npy_file)-1)
		print('count_correct/num_right_images = {}/{} = {}'.format(count_correct, len(point_pose_npy_file)-1, success_rate))

		## write correctly run target image names to file
		f = open('{}/successful_runs.txt'.format(point_folder), 'w')
		f.write('count_correct/num_right_images = {}/{} = {}\n'.format(count_correct, len(point_pose_npy_file)-1, success_rate))
		for i in range(len(list_correct_img_names)):
			f.write('{}\n'.format(list_correct_img_names[i]))
		f.close()
		print('writing correct run image names to txt ...')
		'''
		avg_steps = 1.0 * sum(list_steps) / len(list_steps)
		f.write('point {} : {}/{}, {}\n'.format(point_idx, count_correct, len(point_pose_npy_file)-1, avg_steps))
		list_count_correct.append(count_correct)
		list_count_runs.append(len(point_pose_npy_file)-1)
		list_count_steps.append(avg_steps)
		f.flush()

	avg_count_steps = 1.0 * sum(list_count_steps) / len(list_count_steps)
	f.write('In total : {}/{}, {}\n'.format(sum(list_count_correct), sum(list_count_runs), avg_count_steps))
	f.write('-------------------------------------------------------------------------------------\n')	
def main(scene_idx=0, actual_episodes=1):

#scene_idx = 0
#actual_episodes=2

	Train_Scenes, Test_Scenes = get_train_test_scenes()
	scene_name = Train_Scenes[scene_idx]
	num_startPoints = len(mapper_scene2points[scene_name])
	model_weights_save_path = '{}'.format('/home/reza/Datasets/GibsonEnv/my_code/vs_controller/trained_dqn')
	action_space = action_table.shape[0]

	##=============================================================================================================
	## rrt functions
	## first figure out how to sample points from rrt graph
	rrt_directory = '/home/reza/Datasets/GibsonEnv/gibson/assets/dataset/{}_for_rrt'.format(scene_name)
	path_finder = rrt.PathFinder(rrt_directory)
	path_finder.load()
	num_nodes = len(path_finder.nodes_x)
	free = cv2.imread('/home/reza/Datasets/GibsonEnv/gibson/assets/dataset/{}_for_rrt/free.png'.format(scene_name), 0)

	##------------------------------------------------------------------------------------------------------------
	## setup environment
	import gym, logging
	from mpi4py import MPI
	from gibson.envs.husky_env import HuskyNavigateEnv
	from baselines import logger
	import skimage.io
	from transforms3d.euler import euler2quat
	config_file = os.path.join('/home/reza/Datasets/GibsonEnv/my_code/CVPR_workshop', 'env_yamls', '{}_navigate.yaml'.format(scene_name))
	env = HuskyNavigateEnv(config=config_file, gpu_count = 1)
	obs = env.reset() ## this line is important otherwise there will be an error like 'AttributeError: 'HuskyNavigateEnv' object has no attribute 'potential''
	mapper_scene2z = get_mapper()

	def get_obs(current_pose):
		pos, orn = func_pose2posAndorn(current_pose, mapper_scene2z[scene_name])
		env.robot.reset_new_pose(pos, orn)
		obs, _, _, _ = env.step(4)
		obs_rgb = obs['rgb_filled']
		obs_depth = obs['depth']
		#obs_normal = obs['normal']
		return obs_rgb, obs_depth#, obs_normal

	def close_to_goal(pose1, pose2, thresh=0.15):
		L2_dist = math.sqrt((pose1[0] - pose2[0])**2 + (pose1[1] - pose2[1])**2)
		thresh_L2_dist = thresh
		theta_change = abs(pose1[2] - pose2[2])/math.pi * 180
		return (L2_dist < thresh_L2_dist) and (theta_change <= 30)

	def compute_distance(left_pose, right_pose, lamb_alpha=0.5, lamb_beta=0.2):
		x1, y1 = left_pose[0], left_pose[1]
		x2, y2 = right_pose[0], right_pose[1]
		pho_dist = math.sqrt((x1-x2)**2 + (y1-y2)**2)
		
		left_pose_heading = left_pose[2]
		right_pose_heading = right_pose[2]
		location_angle = atan2(y2-y1, x2-x1)
		print('left_pose_heading = {}, right_pose_heading = {}, location_angle = {}'.format(left_pose_heading, right_pose_heading, location_angle))
		if pho_dist >= 0.05:
			## alpha angle in goToPose is the difference between location angle and left_pose_heading
			a1, b1 = cos(location_angle), sin(location_angle)
			a2, b2 = cos(left_pose_heading), sin(left_pose_heading)
			alpha_dist = math.sqrt((a1-a2)**2 + (b1-b2)**2)
			## beta angle in goToPose is the difference between right_pose_heading and location angle
			a1, b1 = cos(right_pose_heading), sin(right_pose_heading)
			a2, b2 = cos(location_angle), sin(location_angle)
			beta_dist = math.sqrt((a1-a2)**2 + (b1-b2)**2)
		else:
			## when pho_dist is close to zero, alpha_dist is not important
			alpha_dist = 0.0
			## beta angle becomes the anlge between left and right poses
			a1, b1 = cos(right_pose_heading), sin(right_pose_heading)
			a2, b2 = cos(left_pose_heading), sin(left_pose_heading)
			beta_dist = math.sqrt((a1-a2)**2 + (b1-b2)**2)
		print('pho_dist = {:.2f}, alpha_dist = {:.2f}, beta_dist = {:.2f}'.format(pho_dist, alpha_dist, beta_dist))
		return  pho_dist + lamb_alpha * alpha_dist + lamb_beta * beta_dist

	def decide_reward_and_done(previous_pose, current_pose, goal_pose, start_pose):
		## check if the new step is on free space or not
		reward = 0.0
		done = 0
		
		## check if current_pose is closer to goal_pose than previous_pose
		'''
		L2_dist_current = math.sqrt((current_pose[0] - goal_pose[0])**2 + (current_pose[1] - goal_pose[1])**2)
		L2_dist_previous = math.sqrt((previous_pose[0] - goal_pose[0])**2 + (previous_pose[1] - goal_pose[1])**2)
		if L2_dist_current < L2_dist_previous:
			reward += 0.25
		print('L2_dist_current = {:.2f}, L2_dist_previous = {:.2f}, reward = {}'.format(L2_dist_current, L2_dist_previous, reward))
		'''

		## following Fereshteh's DiVIs paper
		dist_init = compute_distance(start_pose, goal_pose, lamb_alpha=0.2)
		dist_current = compute_distance(current_pose, goal_pose, lamb_alpha=0.2)
		reward = max(0, 1 - min(dist_init, dist_current)/(dist_init+0.0001))
		print('dist_init = {:.2f}, dist_current = {:.2f}, reward = {:.2f}'.format(dist_init, dist_current, reward))
		
		## check if current_pose is close to goal
		## goal reward should be larger than all the previously accumulated reward
		flag_close_to_goal = close_to_goal(current_pose, goal_pose)
		if flag_close_to_goal:
			reward = 50.0
			done = 1
		print('current_pose = {}, goal_pose = {}, flag_close_to_goal = {}, reward = {}'.format(current_pose, goal_pose, flag_close_to_goal, reward))

		#collision_done = 0
		## if there is a collision, reward is -1 and the episode is done
		left_pixel = path_finder.point_to_pixel((previous_pose[0], previous_pose[1]))
		right_pixel = path_finder.point_to_pixel((current_pose[0], current_pose[1]))
		## rrt.line_check returns True when there is no obstacle
		if not rrt.line_check(left_pixel, right_pixel, free):
			print('bumped into obstacle ....')
			reward = 0.0
			#collision_done = 1
			done=1
		print('final reward = {}'.format(reward))
		
		return reward, done, 0 #, collision_done

	##============================================================================================================
	base_folder = '/home/reza/Datasets/GibsonEnv/my_code/visual_servoing/sample_image_pairs_{}'.format('train')

	#agent = DQN_vs_triplet(trained_model_path=None, num_actions=action_space, input_channels=5)
	agent = DQN_vs_triplet(trained_model_path=model_weights_save_path, num_actions=action_space, input_channels=5)

	rewards = []
	avg_rewards = []

	for i_epoch in range(actual_episodes):
		## go through each point folder
		for point_idx in range(0, num_startPoints):
		#for point_idx in range(0, 1):
			print('point_idx = {}'.format(point_idx))

			## read in start img and start pose
			point_image_folder = '{}/{}/point_{}'.format(base_folder, scene_name, point_idx)
			point_pose_npy_file = np.load('{}/{}/point_{}_poses.npy'.format(base_folder, scene_name, point_idx))

			#start_img = cv2.imread('{}/{}.png'.format(point_image_folder, point_pose_npy_file[0]['img_name']))[:, :, ::-1]
			start_pose = point_pose_npy_file[0]['pose']
			start_img, start_depth = get_obs(start_pose)
			start_depth = start_depth.copy()

			## index 0 is the left image, so right_img_idx starts from index 1
			for right_img_idx in range(1, len(point_pose_npy_file)):
			#for right_img_idx in range(3, 4):
				#print('right_img_idx = {}'.format(right_img_idx))

				current_pose = start_pose
				
				right_img_name = point_pose_npy_file[right_img_idx]['img_name']
				goal_pose = point_pose_npy_file[right_img_idx]['pose']
				#goal_img = cv2.imread('{}/{}.png'.format(point_image_folder, right_img_name), 1)[:,:,::-1]
				goal_img, goal_depth = get_obs(goal_pose)
				goal_img, goal_depth = goal_img.copy(), goal_depth.copy()

				overlapArea_currentView = genOverlapAreaOnCurrentView(start_depth, goal_depth, start_pose, goal_pose)[:,:,:2]
				overlapArea_goalView = genOverlapAreaOnGoalView(start_depth, goal_depth, start_pose, goal_pose)[:,:,:2]
				overlapArea = np.concatenate((overlapArea_currentView, overlapArea_goalView, start_depth), axis=2)
				state = [overlapArea]

				episode_reward = 0

				for i_step in range(seq_len):
					action = agent.select_action(state)
					print('action = {}'.format(action))
					
					## update current_pose
					vz, omegay = action_table[action]
					print('vz = {:.2f}, omegay = {:.2f}'.format(vz, omegay))
					vx = 0.0
					vx = vx * lambda_action
					vz = vz * lambda_action
					omegay = omegay * pi * lambda_action
					print('actual velocity = {:.2f}, {:.2f}, {:.2f}'.format(vx, vz, omegay))
					previous_pose = current_pose
					current_pose = update_current_pose(current_pose, vx, vz, omegay)
					## compute new_state
					current_img, current_depth = get_obs(current_pose)
					next_left_img, next_left_depth = current_img.copy(), current_depth.copy()

					new_overlapArea_currentView = genOverlapAreaOnCurrentView(next_left_depth, goal_depth, current_pose, goal_pose)[:,:,:2]
					new_overlapArea_goalView = genOverlapAreaOnGoalView(next_left_depth, goal_depth, current_pose, goal_pose)[:,:,:2]
					new_overlapArea = np.concatenate((new_overlapArea_currentView, new_overlapArea_goalView, next_left_depth), axis=2)
					new_state = [new_overlapArea]

					## visualize the state
					'''
					fig = plt.figure(figsize=(15, 10))
					r, c, = 2, 2
					ax = fig.add_subplot(r, c, 1)
					ax.imshow(next_left_img)
					ax = fig.add_subplot(r, c, 2)
					ax.imshow(goal_img)
					ax = fig.add_subplot(r, c, 3)
					start_mask = np.concatenate((new_overlapArea, np.zeros((256, 256, 1), dtype=np.uint8)), axis=2)
					ax.imshow(start_mask)
					plt.show()
					'''
					## collision done only stops continuing the sequence, but won't affect reward computing
					reward, done, collision_done = decide_reward_and_done(previous_pose, current_pose, goal_pose, start_pose)
					print('done = {}, collision_done = {}'.format(done, collision_done))
					if i_step == seq_len-1:
						print('used up all the steps ...')
						done = 1

					agent.memory.push(state, action, reward, new_state, done)
					
					if len(agent.memory) > batch_size:
						agent.update(batch_size)

					state = new_state
					episode_reward += reward
					print('---------------- end of a action ------------------ ')

					if done or collision_done:
						break

				print('---------------- end of a sequence ------------------ ')

				rewards.append(episode_reward)
				avg_rewards.append(np.mean(rewards[-10:]))
				sys.stdout.write("------------------------------------epoch = {}, point = {}, traj = {}, reward: {}, average_reward: {} #_steps: {}\n".format(i_epoch, point_idx, right_img_idx, np.round(episode_reward, decimals=2), np.round(avg_rewards[-1], decimals=2), i_step))

				if right_img_idx % 10 == 0:
					agent.update_critic()

					## plot the running_loss
					plt.plot(rewards, label='reward')
					plt.plot(avg_rewards, label='avg_reward')
					plt.xlabel('Episode')
					plt.ylabel('Reward')
					plt.grid(True)
					plt.legend(loc='upper right')
					plt.yscale('linear')
					plt.title('change of reward and avg_reward')
					plt.savefig('{}/Reward_episode_{}_{}.jpg'.format(
						model_weights_save_path, num_episodes, scene_name), bbox_inches='tight')
					plt.close()

					torch.save(agent.actor.state_dict(), '{}/dqn_epoch_200000_{}.pt'.format(model_weights_save_path, scene_name))
					torch.save(agent.actor.state_dict(), '{}/dqn_epoch_200000.pt'.format(model_weights_save_path))
Example #3
0
def main(scene_idx=0, point_a=0, right_a=0):
    #scene_idx = 0

    Train_Scenes, Test_Scenes = get_train_test_scenes()
    mapper_scene2points = get_mapper_scene2points()
    scene_name = Test_Scenes[scene_idx]
    num_startPoints = len(mapper_scene2points[scene_name])

    ## as the move forward distance = 0.1, assume velocity is 0.01, it needs 10 steps.
    def pose_interpolation(start_pose,
                           end_pose,
                           num=10,
                           include_endpoint=False):
        x0, y0, theta0 = start_pose
        x1, y1, theta1 = end_pose
        x = np.linspace(x0, x1, num=num, endpoint=include_endpoint)
        y = np.linspace(y0, y1, num=num, endpoint=include_endpoint)
        ## convert to quaternion
        q0 = Quaternion(axis=[0, -1, 0], angle=theta0)
        q1 = Quaternion(axis=[0, -1, 0], angle=theta1)
        pose_list = []
        v = np.array([1, 0, 0])
        for idx, q in enumerate(
                Quaternion.intermediates(q0,
                                         q1,
                                         num - 1,
                                         include_endpoints=True)):
            if idx < num:
                e, d, f = q.rotate(v)
                theta = atan2(f, e)
                current_pose = [x[idx], y[idx], theta]
                pose_list.append(current_pose)
        return pose_list

    ## rrt functions
    ## first figure out how to sample points from rrt graph
    rrt_directory = '/home/reza/Datasets/GibsonEnv/gibson/assets/dataset/{}_for_rrt'.format(
        scene_name)
    path_finder = rrt.PathFinder(rrt_directory)
    path_finder.load()
    num_nodes = len(path_finder.nodes_x)
    free = cv2.imread(
        '/home/reza/Datasets/GibsonEnv/gibson/assets/dataset/{}_for_rrt/free.png'
        .format(scene_name), 0)

    ## draw the observations
    ## setup environment
    import gym, logging
    from mpi4py import MPI
    from gibson.envs.husky_env import HuskyNavigateEnv
    from baselines import logger
    import skimage.io
    from transforms3d.euler import euler2quat
    config_file = os.path.join(
        '/home/reza/Datasets/GibsonEnv/my_code/CVPR_workshop', 'env_yamls',
        '{}_navigate.yaml'.format(scene_name))
    env = HuskyNavigateEnv(config=config_file, gpu_count=1)
    obs = env.reset(
    )  ## this line is important otherwise there will be an error like 'AttributeError: 'HuskyNavigateEnv' object has no attribute 'potential''
    mapper_scene2z = get_mapper()

    def get_obs(current_pose):
        pos, orn = func_pose2posAndorn(current_pose,
                                       mapper_scene2z[scene_name])
        env.robot.reset_new_pose(pos, orn)
        obs, _, _, _ = env.step(4)
        obs_rgb = obs['rgb_filled']
        obs_depth = obs['depth']
        #obs_normal = obs['normal']
        return obs_rgb, obs_depth  #, obs_normal

    def close_to_goal(pose1, pose2, thresh=0.20):
        L2_dist = math.sqrt((pose1[0] - pose2[0])**2 +
                            (pose1[1] - pose2[1])**2)
        thresh_L2_dist = thresh
        theta_change = abs(pose1[2] - pose2[2]) / math.pi * 180
        return (L2_dist <= thresh_L2_dist)  #and (theta_change <= 30)

    base_folder = '/home/reza/Datasets/GibsonEnv/my_code/visual_servoing/sample_image_pairs_{}'.format(
        'test')

    #for point_idx in range(2, 3):
    for point_idx in range(point_a, point_a + 1):
        print('point_idx = {}'.format(point_idx))

        ## read in start img and start pose
        point_image_folder = '{}/{}/point_{}'.format(base_folder, scene_name,
                                                     point_idx)
        point_pose_npy_file = np.load('{}/{}/point_{}_poses.npy'.format(
            base_folder, scene_name, point_idx))

        save_folder = '{}/{}/point_{}'.format(
            '/home/reza/Datasets/GibsonEnv/my_code/vs_controller/for_video',
            scene_name, point_idx)

        ## index 0 is the left image, so right_img_idx starts from index 1
        #for right_img_idx in range(1, len(point_pose_npy_file)):
        #for right_img_idx in range(1, 101):
        for right_img_idx in range(right_a, right_a + 1):

            right_img_name = point_pose_npy_file[right_img_idx]['img_name']

            ## Read in pose npy file generated from DQN
            dqn_pose_npy_file = np.load(
                '{}/run_{}/{}_waypoint_pose_list.npy'.format(
                    save_folder, right_img_idx, right_img_name[10:]))

            start_pose = dqn_pose_npy_file[0]
            goal_pose = dqn_pose_npy_file[1]
            dqn_pose_list = dqn_pose_npy_file[2]

            goal_img, goal_depth = get_obs(goal_pose)
            goal_img = goal_img[:, :, ::-1]
            cv2.imwrite(
                '{}/run_{}/goal_img.jpg'.format(save_folder, right_img_idx),
                goal_img)

            interpolated_pose_list = []
            ## build the subsequence
            len_dqn_pose_list = len(dqn_pose_list)

            for i in range(len_dqn_pose_list - 1):
                first_pose = dqn_pose_list[i]
                second_pose = dqn_pose_list[i + 1]
                subseq_pose_list = pose_interpolation(first_pose, second_pose)
                interpolated_pose_list += subseq_pose_list
            interpolated_pose_list.append(dqn_pose_list[-1])

            img_name = 'goTo_{}.jpg'.format('current')
            print('img_name = {}'.format(img_name))

            ## plot the poses
            free2 = cv2.imread(
                '/home/reza/Datasets/GibsonEnv/gibson/assets/dataset/{}_for_rrt/free.png'
                .format(scene_name), 1)
            rows, cols, _ = free2.shape
            plt.imshow(free2)

            for m in range(len(interpolated_pose_list)):
                #for m in range(0, 100, 5):
                pose = interpolated_pose_list[m]
                x, y = path_finder.point_to_pixel((pose[0], pose[1]))
                theta = pose[2]
                plt.arrow(x, y, cos(theta), sin(theta), color='y', \
                 overhang=1, head_width=0.1, head_length=0.15, width=0.001)
            ## draw goal pose
            x, y = path_finder.point_to_pixel((goal_pose[0], goal_pose[1]))
            theta = goal_pose[2]
            plt.arrow(x, y, cos(theta), sin(theta), color='r', \
              overhang=1, head_width=0.1, head_length=0.15, width=0.001)
            ## draw start pose
            x, y = path_finder.point_to_pixel((start_pose[0], start_pose[1]))
            theta = start_pose[2]
            plt.arrow(x, y, cos(theta), sin(theta), color='b', \
              overhang=1, head_width=0.1, head_length=0.15, width=0.001)

            plt.axis([0, cols, 0, rows])
            plt.xticks([])
            plt.yticks([])
            #plt.title('{}, start point_{}, goal viewpoint {}, {}'.format(scene_name, point_idx, right_img_name[10:], str_succ))
            plt.savefig('{}/run_{}/{}'.format(save_folder, right_img_idx,
                                              'overview.jpg'),
                        bbox_inches='tight',
                        dpi=(400))
            plt.close()

        #'''
        for i in range(len(interpolated_pose_list)):
            current_pose = interpolated_pose_list[i]
            obs_rgb, obs_depth = get_obs(current_pose)
            obs_rgb = obs_rgb[:, :, ::-1]
            cv2.imwrite(
                '{}/run_{}/step_{}.jpg'.format(save_folder, right_img_idx, i),
                obs_rgb)
Example #4
0
import cv2
import matplotlib.pyplot as plt
import numpy as np
import numpy.linalg as LA
import math
from math import sin, cos, atan2
from util_visual_servoing import get_train_test_scenes, get_mapper, detect_correspondences, detect_correspondences_for_fixed_kps, detect_correspondences_and_descriptors

import sys
import os, inspect
sys.path.append('/home/reza/Datasets/GibsonEnv/my_code/rrt')
sys.path.append('/home/reza/Datasets/GibsonEnv/my_code/CVPR_workshop')
import random
from math import cos, sin, pi

Train_Scenes, Test_Scenes = get_train_test_scenes()
scene_idx = 6
scene_name = Train_Scenes[6]
mapper_scene2z = get_mapper()


def compute_tx_tz_theta(current_pose, goal_pose):
    '''
	x1, y1, theta1 = goal_pose
	x0, y0, theta0 = current_pose
	x_change = x1 - x0
	y_change = y1 - y0
	theta_change = theta1 - theta0
	## look from upper side is different from look from downside
	theta_change = -theta_change
	dist = math.sqrt(x_change**2 + y_change**2)
def main(scene_idx=0, point_a=0):

	#scene_idx = 1

	## necessary constants
	mapper_scene2points = get_mapper_scene2points()
	num_episodes = 200000
	batch_size = 64
	lambda_action = 0.25
	action_table = buildActionMapper(flag_fewer_actions=True)
	seq_len = 50

	Train_Scenes, Test_Scenes = get_train_test_scenes()

	if mode == 'Test':
		scene_name = Test_Scenes[scene_idx]
	elif mode == 'Train':
		scene_name = Train_Scenes[scene_idx]


	num_startPoints = len(mapper_scene2points[scene_name])
	model_weights_save_path = '{}/{}'.format('/home/reza/Datasets/GibsonEnv/my_code/vs_controller/trained_dqn', approach)
	action_space = action_table.shape[0]

	##=============================================================================================================
	## rrt functions
	## first figure out how to sample points from rrt graph
	rrt_directory = '/home/reza/Datasets/GibsonEnv/gibson/assets/dataset/{}_for_rrt'.format(scene_name)
	path_finder = rrt.PathFinder(rrt_directory)
	path_finder.load()
	num_nodes = len(path_finder.nodes_x)
	free = cv2.imread('/home/reza/Datasets/GibsonEnv/gibson/assets/dataset/{}_for_rrt/free.png'.format(scene_name), 0)

	##------------------------------------------------------------------------------------------------------------
	## setup environment
	import gym, logging
	from mpi4py import MPI
	from gibson.envs.husky_env import HuskyNavigateEnv
	from baselines import logger
	import skimage.io
	from transforms3d.euler import euler2quat
	config_file = os.path.join('/home/reza/Datasets/GibsonEnv/my_code/CVPR_workshop', 'env_yamls', '{}_navigate.yaml'.format(scene_name))
	env = HuskyNavigateEnv(config=config_file, gpu_count = 1)
	obs = env.reset() ## this line is important otherwise there will be an error like 'AttributeError: 'HuskyNavigateEnv' object has no attribute 'potential''
	mapper_scene2z = get_mapper()

	def get_obs(current_pose):
		pos, orn = func_pose2posAndorn(current_pose, mapper_scene2z[scene_name])
		env.robot.reset_new_pose(pos, orn)
		obs, _, _, _ = env.step(4)
		obs_rgb = obs['rgb_filled']
		obs_depth = obs['depth']
		#obs_normal = obs['normal']
		return obs_rgb, obs_depth#, obs_normal

	def close_to_goal(pose1, pose2, thresh=0.20):
		L2_dist = math.sqrt((pose1[0] - pose2[0])**2 + (pose1[1] - pose2[1])**2)
		thresh_L2_dist = thresh
		theta_change = abs(pose1[2] - pose2[2])/math.pi * 180
		return (L2_dist <= thresh_L2_dist) #and (theta_change <= 30)

	##============================================================================================================
	if mode == 'Test':
		base_folder = '/home/reza/Datasets/GibsonEnv/my_code/visual_servoing/sample_image_pairs_{}'.format('test')
	elif mode == 'Train':
		base_folder = '/home/reza/Datasets/GibsonEnv/my_code/visual_servoing/sample_image_pairs_{}'.format('train')

	import torch
	import torch.nn as nn
	import torch.nn.functional as F

	device = torch.device('cuda:0')     ## Default CUDA device
	num_epochs = 200000 ## same as # of trajs sampled
	num_actions = action_table.shape[0]
	if input_type == 'both':
		perception = Perception_overlap(4).to(device)
	elif input_type == 'siamese':
		perception = Perception_siamese(4).to(device)
	elif input_type == 'optical_flow':
		perception = Perception_overlap(2).to(device)
	elif input_type == 'optical_flow_depth':
		perception = Perception_overlap(3).to(device)
	elif input_type == 'optical_flow_depth_normalized':
		perception = Perception_overlap(3).to(device)
	elif input_type == 'optical_flow_depth_unnormalized_mask':
		perception = Perception_overlap(3).to(device)
	elif input_type == 'optical_flow_depth_siamese':
		perception = Perception_siamese_fusion_new(3).to(device)
	elif input_type == 'optical_flow_memory':
		perception = Preception_overlap_resnet(4).to(device)
	else:
		perception = Perception_overlap(2).to(device)
	if input_type == 'siamese':
		model = DQN_OVERLAP_Controller(perception, num_actions, input_size=512).to(device)
	elif input_type == 'optical_flow_memory':
		model = DQN_OVERLAP_RESNET_Controller(perception, num_actions, input_size=512).to(device)
	else:
		model = DQN_OVERLAP_Controller(perception, num_actions, input_size=256).to(device)
	model.load_state_dict(torch.load('{}/dqn_epoch_{}_Uvalda.pt'.format(model_weights_save_path, num_epochs)))
	#model.eval()

	list_succ = []
	list_collision = []
	## go through each point folder
	if mode == 'Test':
		a, b = 0, 1
	elif mode == 'Train':
		a, b = 7, 8
		#a, b = 0, 1
	#for point_idx in range(0, num_startPoints):
	#for point_idx in range(a, b):
	for point_idx in range(point_a, point_a+1):
		print('point_idx = {}'.format(point_idx))

		task_folder = '{}/{}/point_{}'.format('/home/reza/Datasets/GibsonEnv/my_code/vs_controller/for_video', scene_name, point_idx)
		create_folder(task_folder)

		## read in start img and start pose
		point_image_folder = '{}/{}/point_{}'.format(base_folder, scene_name, point_idx)
		point_pose_npy_file = np.load('{}/{}/point_{}_poses.npy'.format(base_folder, scene_name, point_idx))

		#start_img = cv2.imread('{}/{}.png'.format(point_image_folder, point_pose_npy_file[0]['img_name']))[:, :, ::-1]
		start_pose = point_pose_npy_file[0]['pose']
		start_img, start_depth = get_obs(start_pose)
		start_depth = start_depth.copy()

		count_succ = 0
		count_collision = 0
		count_short_runs = 0
		count_short_runs_collision = 0
		count_short_runs_succ = 0
		## index 0 is the left image, so right_img_idx starts from index 1
		#for right_img_idx in range(1, len(point_pose_npy_file)):
		for right_img_idx in range(1, 101):
			print('right_img_idx = {}'.format(right_img_idx))

			run_folder = '{}/run_{}'.format(task_folder, right_img_idx)
			create_folder(run_folder)

			current_pose = start_pose
			
			right_img_name = point_pose_npy_file[right_img_idx]['img_name']
			
			goal_pose = point_pose_npy_file[right_img_idx]['pose']
			#goal_img = cv2.imread('{}/{}.png'.format(point_image_folder, right_img_name), 1)[:,:,::-1]
			goal_img, goal_depth = get_obs(goal_pose)
			goal_depth = goal_depth.copy()

			current_depth = start_depth.copy()

			episode_reward = 0

			flag_succ = False

			poses_list = []
			poses_list.append(start_pose)
			poses_list.append(goal_pose)
			poses_list.append([current_pose])

			for i_step in range(seq_len):
				if input_type == 'both' or input_type == 'siamese':
					overlapArea_currentView = genOverlapAreaOnCurrentView(current_depth, goal_depth, current_pose, goal_pose)[:,:,:2]
					overlapArea_goalView = genOverlapAreaOnGoalView(current_depth, goal_depth, current_pose, goal_pose)[:,:,:2]
					overlapArea = np.concatenate((overlapArea_currentView, overlapArea_goalView), axis=2)
				elif input_type == 'optical_flow':
					overlapArea = genGtDenseCorrespondenseFlowMap(current_depth, goal_depth, current_pose, goal_pose)[:,:,:2]
					overlapArea = removeCorrespondenceRandomly(overlapArea, keep_prob=1.0)
				elif input_type == 'optical_flow_depth':
					opticalFlow = genGtDenseCorrespondenseFlowMap(current_depth, goal_depth, current_pose, goal_pose)[:,:,:2]
					overlapArea = np.concatenate((opticalFlow, current_depth), axis=2)
				elif input_type == 'optical_flow_depth_normalized':
					opticalFlow = genGtDenseCorrespondenseFlowMap(current_depth, goal_depth, current_pose, goal_pose)[:,:,:2]
					normalized_opticalFlow = normalize_opticalFlow(opticalFlow)
					normalized_depth = normalize_depth(current_depth)
					#normalized_depth = np.ones((256, 256, 1), np.float32)
					overlapArea = np.concatenate((normalized_opticalFlow, normalized_depth), axis=2)
				elif input_type == 'optical_flow_depth_unnormalized_mask':
					opticalFlow, mask_flow = genGtDenseCorrespondenseFlowMapAndMask(current_depth, goal_depth, current_pose, goal_pose)
					opticalFlow = opticalFlow[:, :, :2]
					normalized_depth = current_depth * mask_flow
					#normalized_opticalFlow = normalize_opticalFlow(opticalFlow)
					normalized_depth = normalize_depth(normalized_depth)
					overlapArea = np.concatenate((opticalFlow, normalized_depth), axis=2)	
				elif input_type == 'optical_flow_depth_siamese':
					opticalFlow = genGtDenseCorrespondenseFlowMap(current_depth, goal_depth, current_pose, goal_pose)[:,:,:2]
					normalized_depth = normalize_depth(current_depth)
					#normalized_depth = np.ones((256, 256, 1), np.float32)
					overlapArea = np.concatenate((opticalFlow, normalized_depth), axis=2)
					#print('overlapArea.shape = {}'.format(overlapArea.shape))
				elif input_type == 'optical_flow_memory':
					opticalFlow = genGtDenseCorrespondenseFlowMap(current_depth, goal_depth, current_pose, goal_pose)[:,:,:2]
					if i_step == 0:
						overlapArea = np.concatenate((opticalFlow, opticalFlow), axis=2)
					else:
						overlapArea = np.concatenate((old_opticalFlow, opticalFlow), axis=2)
				else:
					overlapArea = genOverlapAreaOnCurrentView(current_depth, goal_depth, current_pose, goal_pose)[:,:,:2]

				
				tensor_left = torch.tensor(overlapArea, dtype=torch.float32).to(device).unsqueeze(0).permute(0, 3, 1, 2)
				Qvalue_table = model(tensor_left)
				pred = Qvalue_table.max(1)[1].view(1, 1).detach().cpu().numpy().item() ## batch_size x 3
				#print('Qvalue_table: {}'.format(Qvalue_table))
				#print('pred = {}'.format(pred))
				
				## update current_pose
				vz, omegay = action_table[pred]
				#print('vz = {:.2f}, omegay = {:.2f}'.format(vz, omegay))
				vx = 0.0
				vx = vx * lambda_action
				vz = vz * lambda_action
				omegay = omegay * pi * lambda_action
				#print('actual velocity = {:.2f}, {:.2f}, {:.2f}'.format(vx, vz, omegay))
				previous_pose = current_pose
				current_pose = update_current_pose(current_pose, vx, vz, omegay)
				poses_list[2].append(current_pose)

				flag_broken = False
				left_pixel = path_finder.point_to_pixel((previous_pose[0], previous_pose[1]))
				right_pixel = path_finder.point_to_pixel((current_pose[0], current_pose[1]))
				## rrt.line_check returns True when there is no obstacle
				if not rrt.line_check(left_pixel, right_pixel, free):
					print('run into something')
					flag_broken = True
					break

				if close_to_goal(current_pose, goal_pose):
					print('success run')
					flag_succ = True
					break

				## compute new_state
				current_img, current_depth = get_obs(current_pose)
				current_depth = current_depth.copy()
				#old_opticalFlow = opticalFlow.copy()

			np.save('{}/{}_waypoint_pose_list.npy'.format(run_folder, right_img_name[10:]), poses_list)
			#assert 1==2

			if flag_succ:
				count_succ += 1
				list_succ.append(point_pose_npy_file[right_img_idx]['img_name'])
				if findShortRangeImageName(right_img_name):
					count_short_runs_succ += 1
			if flag_broken:
				count_collision += 1
				list_collision.append(point_pose_npy_file[right_img_idx]['img_name'])
				if findShortRangeImageName(right_img_name):
					count_short_runs_collision += 1
			if findShortRangeImageName(right_img_name):
				count_short_runs += 1


			print('count_succ = {}'.format(count_succ))
			print('count_collision = {}'.format(count_collision))
			print('count_short_runs_succ = {}'.format(count_short_runs_succ))
			print('count_short_runs_collision = {}'.format(count_short_runs_collision))

		print('num_succ = {}, num_run = {}, count_short_runs_succ = {}, count_short_runs = {}'.format(count_succ, len(point_pose_npy_file), count_short_runs_succ, count_short_runs))