{ "codebase_version": "v3.0", "robot_type": "simpleai_umi_4.0", "dataset_id": "lerobotv3", "total_episodes": 140, "total_frames": 228719, "total_tasks": 4, "chunks_size": 1000, "fps": 25.0, "splits": { "train": "0:140" }, "data_path": "data/chunk-{chunk_index:03d}/file-{file_index:03d}.parquet", "video_path": "videos/{video_key}/chunk-{chunk_index:03d}/file-{file_index:03d}.mp4", "features": { "observation.images.head_main": { "dtype": "video", "shape": [ 3, 512, 640 ], "names": [ "channels", "height", "width" ], "info": { "video.height": 512, "video.width": 640, "video.codec": "h264", "video.pix_fmt": "yuv420p", "video.is_depth_map": false, "video.fps": 25.0, "video.channels": 3, "has_audio": false } }, "observation.images.head_main_stereo_right": { "dtype": "video", "shape": [ 3, 512, 640 ], "names": [ "channels", "height", "width" ], "info": { "video.height": 512, "video.width": 640, "video.codec": "h264", "video.pix_fmt": "yuv420p", "video.is_depth_map": false, "video.fps": 25.0, "video.channels": 3, "has_audio": false } }, "observation.images.left_hand_down": { "dtype": "video", "shape": [ 3, 512, 640 ], "names": [ "channels", "height", "width" ], "info": { "video.height": 512, "video.width": 640, "video.codec": "h264", "video.pix_fmt": "yuv420p", "video.is_depth_map": false, "video.fps": 25.0, "video.channels": 3, "has_audio": false } }, "observation.images.left_hand_up": { "dtype": "video", "shape": [ 3, 512, 640 ], "names": [ "channels", "height", "width" ], "info": { "video.height": 512, "video.width": 640, "video.codec": "h264", "video.pix_fmt": "yuv420p", "video.is_depth_map": false, "video.fps": 25.0, "video.channels": 3, "has_audio": false } }, "observation.images.right_hand_down": { "dtype": "video", "shape": [ 3, 512, 640 ], "names": [ "channels", "height", "width" ], "info": { "video.height": 512, "video.width": 640, "video.codec": "h264", "video.pix_fmt": "yuv420p", "video.is_depth_map": false, "video.fps": 25.0, "video.channels": 3, "has_audio": false } }, "observation.images.right_hand_up": { "dtype": "video", "shape": [ 3, 512, 640 ], "names": [ "channels", "height", "width" ], "info": { "video.height": 512, "video.width": 640, "video.codec": "h264", "video.pix_fmt": "yuv420p", "video.is_depth_map": false, "video.fps": 25.0, "video.channels": 3, "has_audio": false } }, "observation.state": { "dtype": "float32", "shape": [ 20 ], "names": [ "state_dim" ], "fps": 25.0 }, "observation.state_valid": { "dtype": "bool", "shape": [ 20 ], "names": [ "state_dim" ], "fps": 25.0 }, "action": { "dtype": "float32", "shape": [ 20 ], "names": [ "action_dim" ], "fps": 25.0 }, "action_valid": { "dtype": "bool", "shape": [ 20 ], "names": [ "action_dim" ], "fps": 25.0 }, "timestamp": { "dtype": "float32", "shape": [ 1 ], "names": null, "fps": 25.0 }, "frame_index": { "dtype": "int64", "shape": [ 1 ], "names": null, "fps": 25.0 }, "episode_index": { "dtype": "int64", "shape": [ 1 ], "names": null, "fps": 25.0 }, "index": { "dtype": "int64", "shape": [ 1 ], "names": null, "fps": 25.0 }, "task_index": { "dtype": "int64", "shape": [ 1 ], "names": null, "fps": 25.0 }, "valid.frame": { "dtype": "bool", "shape": [ 1 ], "names": null, "fps": 25.0 } }, "data_files_size_in_mb": 100, "video_files_size_in_mb": 500, "state_layout": { "feature": "observation.state", "order": [ "right", "left" ], "per_side": [ "x", "y", "z", "rot6d_0", "rot6d_1", "rot6d_2", "rot6d_3", "rot6d_4", "rot6d_5", "gripper_angle_rad" ], "rotation_6d_layout": "first_two_rows", "gripper_unit": "rad", "invalid_policy": "carry_forward_state_with_observation.state_valid_false" }, "action_layout": { "feature": "action", "type": "absolute_next_state_target", "order": [ "right", "left" ], "per_side": [ "x", "y", "z", "rot6d_0", "rot6d_1", "rot6d_2", "rot6d_3", "rot6d_4", "rot6d_5", "target_gripper_angle_rad" ], "rotation_6d_layout": "first_two_rows", "gripper_unit": "rad", "shift_policy": "action rows are [state_1, state_2, ..., state_last, state_last]; single-frame episodes use state_0" }, "video_processing": { "source": "materialized_from_extra_video_proxy_medium_frame_index_or_implicit_row_index", "media_policy": "video streams are read from extra/video_proxy_medium; samples missing any required stream are skipped", "present_media_policy": "invalid frame indices on present streams set valid.frame=false and are encoded as black frames", "read_policy": "sequential_when_frame_indices_are_nondecreasing_else_seek_cache", "read_modes_used": [ "sequential" ], "video_profile": "medium_native_mosaic", "crop": "none", "resize": null, "output_sizes": { "observation.images.head_main": [ 640, 512 ], "observation.images.head_main_stereo_right": [ 640, 512 ], "observation.images.left_hand_down": [ 640, 512 ], "observation.images.left_hand_up": [ 640, 512 ], "observation.images.right_hand_down": [ 640, 512 ], "observation.images.right_hand_up": [ 640, 512 ] }, "face_anonymization": { "enabled": true, "failure_policy": "fail_closed_per_sample", "faces_json_policy": "reuse_valid_streams_detect_missing", "model": "yolov11s-face.pt", "device": "auto", "batch_size": 64, "mosaic": { "box_scale": 1.15, "center_fraction": 0.45, "pixel_block": 12, "feather_px": 8, "opacity": 0.92, "center_mean_mix": 0.08, "shape": "ellipse" }, "total_detected_faces": 294498 }, "codec": "h264", "gop_size": 4, "backend_requested": "auto", "backend_used": [ "gpu" ], "decode_backend_requested": "cpu", "decode_backend_used": [ "cpu" ], "frame_preprocess_requested": "cpu", "frame_preprocess_used": [ "cpu_native_mosaic" ], "pix_fmt": "yuv420p", "crf_or_cq": 20, "aligned_video_frames": "one video frame per data row" }, "parallelism": { "workers": 16, "video_workers": 8, "progress": true, "order_policy": "parallel tasks are written back by sorted sample index before parquet writing and video concat" }, "invalid_policy": { "training_filter": "valid.frame == true", "state": "state requires both eef pose and selected gripper valid", "media": "present media rows require valid frame indices; samples missing required extra/selected video profile streams are skipped" }, "source": { "format": "robot_sample_v1_sparse_revision", "converter": "convert_standard_umi_alike_to_lerobotv3.py", "robot_types": [ "simpleai_umi_4.0" ], "robot_type_source": "revision_json_embodiment_name", "media_map": { "head_main": "observation.images.head_main", "head_main_stereo_right": "observation.images.head_main_stereo_right", "left_hand_down": "observation.images.left_hand_down", "left_hand_up": "observation.images.left_hand_up", "right_hand_down": "observation.images.right_hand_down", "right_hand_up": "observation.images.right_hand_up" }, "media_key_source": "revision_json_components_media_key", "gripper_mode": "angle" } }