220 lines
9.7 KiB
Python
220 lines
9.7 KiB
Python
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import os
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import time
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import trimesh
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import tempfile
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import subprocess
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import numpy as np
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from PytorchBoot.runners.runner import Runner
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from PytorchBoot.config import ConfigManager
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import PytorchBoot.stereotype as stereotype
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from PytorchBoot.utils.log_util import Log
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from PytorchBoot.status import status_manager
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from utils.control_util import ControlUtil
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from utils.communicate_util import CommunicateUtil
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from utils.pts_util import PtsUtil
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from utils.reconstruction_util import ReconstructionUtil
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from utils.preprocess_util import save_scene_data, save_scene_data_multithread
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from utils.data_load import DataLoadUtil
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from utils.view_util import ViewUtil
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@stereotype.runner("CAD_close_loop_strategy_runner")
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class CADCloseLoopStrategyRunner(Runner):
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def __init__(self, config_path: str):
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super().__init__(config_path)
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self.load_experiment("cad_strategy")
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self.status_info = {
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"status_manager": status_manager,
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"app_name": "cad",
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"runner_name": "CAD_close_loop_strategy_runner",
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}
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self.generate_config = ConfigManager.get("runner", "generate")
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self.reconstruct_config = ConfigManager.get("runner", "reconstruct")
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self.blender_bin_path = self.generate_config["blender_bin_path"]
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self.generator_script_path = self.generate_config["generator_script_path"]
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self.model_dir = self.generate_config["model_dir"]
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self.voxel_size = self.generate_config["voxel_size"]
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self.max_view = self.generate_config["max_view"]
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self.min_view = self.generate_config["min_view"]
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self.max_diag = self.generate_config["max_diag"]
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self.min_diag = self.generate_config["min_diag"]
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self.min_cam_table_included_degree = self.generate_config[
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"min_cam_table_included_degree"
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]
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self.max_shot_view_num = self.generate_config["max_shot_view_num"]
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self.min_shot_new_pts_num = self.generate_config["max_shot_new_pts_num"]
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self.min_coverage_increase = self.generate_config["min_coverage_increase"]
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self.random_view_ratio = self.generate_config["random_view_ratio"]
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self.soft_overlap_threshold = self.reconstruct_config["soft_overlap_threshold"]
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self.hard_overlap_threshold = self.reconstruct_config["hard_overlap_threshold"]
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self.scan_points_threshold = self.reconstruct_config["scan_points_threshold"]
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def create_experiment(self, backup_name=None):
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super().create_experiment(backup_name)
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def load_experiment(self, backup_name=None):
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super().load_experiment(backup_name)
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def split_scan_pts_and_obj_pts(self, world_pts, z_threshold=0):
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scan_pts = world_pts[world_pts[:, 2] < z_threshold]
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obj_pts = world_pts[world_pts[:, 2] >= z_threshold]
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return scan_pts, obj_pts
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def run_one_model(self, model_name):
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temp_dir = "/home/yan20/nbv_rec/project/franka_control/temp_output"
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ControlUtil.connect_robot()
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""" init robot """
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Log.info("[Part 1/5] start init and register")
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ControlUtil.init()
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""" load CAD model """
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model_path = os.path.join(self.model_dir, model_name, "mesh.ply")
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temp_name = "cad_model_world"
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cad_model = trimesh.load(model_path)
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""" take first view """
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Log.info("[Part 1/5] take first view data")
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view_data = CommunicateUtil.get_view_data(init=True)
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first_cam_pts = ViewUtil.get_pts(view_data)
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first_cam_to_real_world = ControlUtil.get_pose()
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first_real_world_pts = PtsUtil.transform_point_cloud(
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first_cam_pts, first_cam_to_real_world
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)
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_, first_splitted_real_world_pts = self.split_scan_pts_and_obj_pts(
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first_real_world_pts
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)
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np.savetxt(f"first_real_pts_{model_name}.txt", first_splitted_real_world_pts)
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""" register """
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Log.info("[Part 1/5] do registeration")
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real_world_to_cad = PtsUtil.register(first_splitted_real_world_pts, cad_model)
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cad_to_real_world = np.linalg.inv(real_world_to_cad)
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Log.success("[Part 1/5] finish init and register")
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real_world_to_blender_world = np.eye(4)
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real_world_to_blender_world[:3, 3] = np.asarray([0, 0, 0.9215])
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cad_model_real_world: trimesh.Trimesh = cad_model.apply_transform(
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cad_to_real_world
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)
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cad_model_real_world.export(
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os.path.join(temp_dir, f"real_world_{temp_name}.obj")
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)
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cad_model_blender_world: trimesh.Trimesh = cad_model.apply_transform(
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real_world_to_blender_world
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)
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with tempfile.TemporaryDirectory() as temp_dir:
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temp_dir = "/home/yan20/nbv_rec/project/franka_control/temp_output"
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cad_model_blender_world.export(os.path.join(temp_dir, f"{temp_name}.obj"))
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""" sample view """
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Log.info("[Part 2/5] start running renderer")
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subprocess.run(
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[
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self.blender_bin_path,
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"-b",
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"-P",
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self.generator_script_path,
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"--",
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temp_dir,
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],
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capture_output=True,
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text=True,
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)
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Log.success("[Part 2/5] finish running renderer")
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""" preprocess """
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Log.info("[Part 3/5] start preprocessing data")
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save_scene_data(temp_dir, temp_name)
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Log.success("[Part 3/5] finish preprocessing data")
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pts_dir = os.path.join(temp_dir, temp_name, "pts")
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sample_view_pts_list = []
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scan_points_idx_list = []
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frame_num = len(os.listdir(pts_dir))
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for frame_idx in range(frame_num):
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pts_path = os.path.join(temp_dir, temp_name, "pts", f"{frame_idx}.txt")
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idx_path = os.path.join(
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temp_dir, temp_name, "scan_points_indices", f"{frame_idx}.npy"
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)
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point_cloud = np.loadtxt(pts_path)
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if point_cloud.shape[0] != 0:
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sampled_point_cloud = PtsUtil.voxel_downsample_point_cloud(
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point_cloud, self.voxel_size
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)
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indices = np.load(idx_path)
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try:
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len(indices)
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except:
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indices = np.array([indices])
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sample_view_pts_list.append(sampled_point_cloud)
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scan_points_idx_list.append(indices)
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""" close-loop strategy """
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scanned_pts = [first_real_world_pts]
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history_indices = []
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last_coverage = 0
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last_covered_num = 0
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Log.info("[Part 4/4] start close-loop control")
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while True:
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next_best_view, next_best_coverage, next_best_covered_num = (
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ReconstructionUtil.compute_next_best_view_with_overlap(
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scanned_pts,
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sample_view_pts_list,
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history_indices,
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scan_points_idx_list,
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threshold=self.voxel_size,
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soft_overlap_threshold=self.soft_overlap_threshold,
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hard_overlap_threshold=self.hard_overlap_threshold,
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scan_points_threshold=self.scan_points_threshold,
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)
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)
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nbv_path = DataLoadUtil.get_path(temp_dir, temp_name, next_best_view)
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nbv_cam_info = DataLoadUtil.load_cam_info(nbv_path, binocular=True)
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nbv_cam_to_world = nbv_cam_info["cam_to_world_O"]
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ControlUtil.move_to(nbv_cam_to_world)
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''' get world pts '''
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time.sleep(0.5)
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view_data = CommunicateUtil.get_view_data()
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world_shot_pts = ViewUtil.get_pts(view_data)
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scanned_pts.append(world_shot_pts)
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history_indices.append(scan_points_idx_list[next_best_view])
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Log.info(
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f"Current rec pts num: {len(scanned_pts)}, Best cover pts: {next_best_covered_num}, Best coverage: {next_best_coverage}"
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)
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coverage_rate_increase = next_best_coverage - last_coverage
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if coverage_rate_increase < self.min_coverage_increase:
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Log.info(f"Coverage rate = {coverage_rate_increase} < {self.min_coverage_increase}, stop scanning")
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break
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last_coverage = next_best_coverage
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new_added_pts_num = next_best_covered_num - last_covered_num
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if new_added_pts_num < self.min_shot_new_pts_num:
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Log.info(f"New added pts num = {new_added_pts_num} < {self.min_shot_new_pts_num}, stop scanning")
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break
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last_covered_num = next_best_covered_num
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if len(scanned_pts) >= self.max_shot_view_num:
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Log.info(f"Scanned view num = {len(scanned_pts)} >= {self.max_shot_view_num}, stop scanning")
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break
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Log.success("[Part 4/4] finish close-loop control")
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def run(self):
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total = len(os.listdir(self.model_dir))
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model_start_idx = self.generate_config["model_start_idx"]
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count_object = model_start_idx
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for model_name in os.listdir(self.model_dir[model_start_idx:]):
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Log.info(f"[{count_object}/{total}]Processing {model_name}")
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self.run_one_model(model_name)
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Log.success(f"[{count_object}/{total}]Finished processing {model_name}")
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# ---------------------------- test ---------------------------- #
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if __name__ == "__main__":
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model_path = r"C:\Users\hofee\Downloads\mesh.obj"
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model = trimesh.load(model_path)
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