import numpy as np from PytorchBoot.dataset import BaseDataset import PytorchBoot.namespace as namespace import PytorchBoot.stereotype as stereotype from PytorchBoot.config import ConfigManager from PytorchBoot.utils.log_util import Log import torch import os import sys sys.path.append(r"/data/hofee/project/nbv_rec/nbv_reconstruction") from utils.data_load import DataLoadUtil from utils.pose import PoseUtil from utils.pts import PtsUtil @stereotype.dataset("seq_reconstruction_dataset") class SeqReconstructionDataset(BaseDataset): def __init__(self, config): super(SeqReconstructionDataset, self).__init__(config) self.config = config self.root_dir = config["root_dir"] self.split_file_path = config["split_file"] self.scene_name_list = self.load_scene_name_list() self.datalist = self.get_datalist() self.pts_num = config["pts_num"] self.type = config["type"] self.cache = config.get("cache") self.load_from_preprocess = config.get("load_from_preprocess", False) if self.type == namespace.Mode.TEST: #self.model_dir = config["model_dir"] self.filter_degree = config["filter_degree"] if self.type == namespace.Mode.TRAIN: scale_ratio = 1 self.datalist = self.datalist*scale_ratio if self.cache: expr_root = ConfigManager.get("runner", "experiment", "root_dir") expr_name = ConfigManager.get("runner", "experiment", "name") self.cache_dir = os.path.join(expr_root, expr_name, "cache") # self.preprocess_cache() def load_scene_name_list(self): scene_name_list = [] with open(self.split_file_path, "r") as f: for line in f: scene_name = line.strip() scene_name_list.append(scene_name) return scene_name_list def get_datalist(self): datalist = [] for scene_name in self.scene_name_list: seq_num = DataLoadUtil.get_label_num(self.root_dir, scene_name) scene_max_coverage_rate = 0 max_coverage_rate_list = [] scene_max_cr_idx = 0 for seq_idx in range(seq_num): label_path = DataLoadUtil.get_label_path( self.root_dir, scene_name, seq_idx ) label_data = DataLoadUtil.load_label(label_path) max_coverage_rate = label_data["max_coverage_rate"] if max_coverage_rate > scene_max_coverage_rate: scene_max_coverage_rate = max_coverage_rate scene_max_cr_idx = seq_idx max_coverage_rate_list.append(max_coverage_rate) best_label_path = DataLoadUtil.get_label_path(self.root_dir, scene_name, scene_max_cr_idx) best_label_data = DataLoadUtil.load_label(best_label_path) first_frame = best_label_data["best_sequence"][0] best_seq_len = len(best_label_data["best_sequence"]) datalist.append({ "scene_name": scene_name, "first_frame": first_frame, "best_seq_len": best_seq_len, "max_coverage_rate": scene_max_coverage_rate, "label_idx": scene_max_cr_idx, }) return datalist def preprocess_cache(self): Log.info("preprocessing cache...") for item_idx in range(len(self.datalist)): self.__getitem__(item_idx) Log.success("finish preprocessing cache.") def load_from_cache(self, scene_name, curr_frame_idx): cache_name = f"{scene_name}_{curr_frame_idx}.txt" cache_path = os.path.join(self.cache_dir, cache_name) if os.path.exists(cache_path): data = np.loadtxt(cache_path) return data else: return None def save_to_cache(self, scene_name, curr_frame_idx, data): cache_name = f"{scene_name}_{curr_frame_idx}.txt" cache_path = os.path.join(self.cache_dir, cache_name) try: np.savetxt(cache_path, data) except Exception as e: Log.error(f"Save cache failed: {e}") def __getitem__(self, index): data_item_info = self.datalist[index] max_coverage_rate = data_item_info["max_coverage_rate"] scene_name = data_item_info["scene_name"] ( scanned_views_pts, scanned_coverages_rate, scanned_n_to_world_pose, ) = ([], [], []) view = data_item_info["first_frame"] frame_idx = view[0] coverage_rate = view[1] view_path = DataLoadUtil.get_path(self.root_dir, scene_name, frame_idx) cam_info = DataLoadUtil.load_cam_info(view_path, binocular=True) n_to_world_pose = cam_info["cam_to_world"] target_point_cloud = ( DataLoadUtil.load_from_preprocessed_pts(view_path) ) downsampled_target_point_cloud = PtsUtil.random_downsample_point_cloud( target_point_cloud, self.pts_num ) scanned_views_pts.append(downsampled_target_point_cloud) scanned_coverages_rate.append(coverage_rate) n_to_world_6d = PoseUtil.matrix_to_rotation_6d_numpy( np.asarray(n_to_world_pose[:3, :3]) ) n_to_world_trans = n_to_world_pose[:3, 3] n_to_world_9d = np.concatenate([n_to_world_6d, n_to_world_trans], axis=0) scanned_n_to_world_pose.append(n_to_world_9d) # combined_scanned_views_pts = np.concatenate(scanned_views_pts, axis=0) # voxel_downsampled_combined_scanned_pts_np = PtsUtil.voxel_downsample_point_cloud(combined_scanned_views_pts, 0.002) # random_downsampled_combined_scanned_pts_np = PtsUtil.random_downsample_point_cloud(voxel_downsampled_combined_scanned_pts_np, self.pts_num) data_item = { "first_scanned_pts": np.asarray(scanned_views_pts, dtype=np.float32), # Ndarray(S x Nv x 3) "first_scanned_coverage_rate": scanned_coverages_rate, # List(S): Float, range(0, 1) "first_scanned_n_to_world_pose_9d": np.asarray(scanned_n_to_world_pose, dtype=np.float32), # Ndarray(S x 9) "seq_max_coverage_rate": max_coverage_rate, # Float, range(0, 1) "scene_name": scene_name, # String } return data_item def __len__(self): return len(self.datalist) # -------------- Debug ---------------- # if __name__ == "__main__": import torch seed = 0 torch.manual_seed(seed) np.random.seed(seed) config = { "root_dir": "/data/hofee/data/new_full_data", "source": "seq_reconstruction_dataset", "split_file": "/data/hofee/data/sample.txt", "load_from_preprocess": True, "ratio": 0.5, "batch_size": 2, "filter_degree": 75, "num_workers": 0, "pts_num": 4096, "type": namespace.Mode.TRAIN, } ds = SeqReconstructionDataset(config) print(len(ds)) print(ds.__getitem__(10))