IDEAL-FT / metadata /field_mapping.json
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Align IDEAL-FT data with FTP-1 submission conventions
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{
"schema": "droid-native-to-oxt-arrays-v1",
"source_h5": "/mnt/ssd1/data/tianqi/ft/franka_ft_oxt/native/wipe_board/Mon_Oct_12_19-18-09_2026/trajectory.h5",
"original_control_rows": 469,
"selected_control_rows": [
0,
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],
"timestamp_origin_unix_ns": 1791832690326039198,
"timestamp_semantics": "Host control step_start Unix nanoseconds; relative seconds subtract original episode first row before float conversion. No clock correction or resampling.",
"pose_semantics": {
"representation": "xyz metres + rotation vector radians (scipy Euler xyz conversion)",
"right_wrist_pose_status": "omitted: native EEF/flange has no verified transform to the FTP-1 gripper frame (relative to wrist camera: z forward, x down, y left)",
"native_state_pose": "native__observation__robot_state__cartesian_position retains original xyz metres + Euler xyz radians at the robot-model EEF/flange; local FR3 configuration names panda_link8",
"canonical_wrist_transform_status": "not established; right_wrist_pose is omitted and right_arm_joints is provided",
"action_eef_pose": "original requested EEF target before IK; distinct from future observed state and not FK of the joint target",
"offset_fields": "already recorded original EEF local +Z 0.063 m point; orientation unchanged; not full Robotiq TCP"
},
"action_semantics": "Real original DROID joint and EEF targets are retained. command_dispatched=false indicates a hypothetical hold, not a sent command; true does not prove asynchronous acceptance.",
"hand_semantics": "Single normalized gripper opening = 1 - native observation/robot_state/gripper_position closure, 0=closed and 1=open, joint index 28 (gripper distance); dimensionless, not metres. Native closure and action fields remain unchanged.",
"ft_semantics": {
"sensor": "SRIM3813A1",
"channels": [
"Fx",
"Fy",
"Fz",
"Mx",
"My",
"Mz"
],
"units": [
"N",
"N",
"N",
"Nm",
"Nm",
"Nm"
],
"units_source": "assumed from device stored calibration",
"frame": "sensor native measurement frame; sensor-to-EEF transform unavailable",
"standard_tactile_group": "Only recorded Mx, My, Mz in wrist_torque; area 15. No inferred force magnitude or force-axis reduction.",
"software_bias_subtraction": false,
"software_gravity_compensation": false,
"alignment": "Original latest-persisted per-control snapshot, selected without interpolation; native sample_index identifies full sidecar row.",
"high_rate_sidecar": "Must also preserve original ft_sensor.h5 independently; these row-aligned arrays do not contain all high-rate samples."
},
"supplementary_tactile_note": {
"SRIM3813A1_native_wrench": {
"type": "state",
"shape": [
6
],
"sensor_num": 1,
"sensor_dimension": 6,
"array_key": "supplementary_tactile",
"sensor_description": "One device-calibrated six-axis native sensor-frame wrench, flattened as Fx,Fy,Fz,Mx,My,Mz in N,N,N,Nm,Nm,Nm; no software compensation or coordinate transform.",
"sensor_idx_description": {
"sensor_idx_0": "All six columns belong to the same SRI M3813A1 wrist-mounted sensor."
}
}
},
"native_fields": {
"native__action__cartesian_position": {
"source_path": "action/cartesian_position",
"source_dtype": "float64"
},
"native__action__cartesian_position_with_ft_offset": {
"source_path": "action/cartesian_position_with_ft_offset",
"source_dtype": "float64"
},
"native__action__cartesian_velocity": {
"source_path": "action/cartesian_velocity",
"source_dtype": "float64"
},
"native__action__command_dispatched": {
"source_path": "action/command_dispatched",
"source_dtype": "bool"
},
"native__action__controller_metadata_json": {
"source_path": "action/controller_metadata_json",
"source_dtype": "object"
},
"native__action__controller_target_valid": {
"source_path": "action/controller_target_valid",
"source_dtype": "bool"
},
"native__action__gripper_position": {
"source_path": "action/gripper_position",
"source_dtype": "float64"
},
"native__action__gripper_velocity": {
"source_path": "action/gripper_velocity",
"source_dtype": "float64"
},
"native__action__input_action": {
"source_path": "action/input_action",
"source_dtype": "float64"
},
"native__action__joint_position": {
"source_path": "action/joint_position",
"source_dtype": "float64"
},
"native__action__joint_velocity": {
"source_path": "action/joint_velocity",
"source_dtype": "float64"
},
"native__action__robot_state__cartesian_position": {
"source_path": "action/robot_state/cartesian_position",
"source_dtype": "float64"
},
"native__action__robot_state__gripper_position": {
"source_path": "action/robot_state/gripper_position",
"source_dtype": "float64"
},
"native__action__robot_state__joint_positions": {
"source_path": "action/robot_state/joint_positions",
"source_dtype": "float64"
},
"native__action__robot_state__joint_torques_computed": {
"source_path": "action/robot_state/joint_torques_computed",
"source_dtype": "float64"
},
"native__action__robot_state__joint_velocities": {
"source_path": "action/robot_state/joint_velocities",
"source_dtype": "float64"
},
"native__action__robot_state__motor_torques_measured": {
"source_path": "action/robot_state/motor_torques_measured",
"source_dtype": "float64"
},
"native__action__robot_state__prev_command_successful": {
"source_path": "action/robot_state/prev_command_successful",
"source_dtype": "bool"
},
"native__action__robot_state__prev_controller_latency_ms": {
"source_path": "action/robot_state/prev_controller_latency_ms",
"source_dtype": "float64"
},
"native__action__robot_state__prev_joint_torques_computed": {
"source_path": "action/robot_state/prev_joint_torques_computed",
"source_dtype": "float64"
},
"native__action__robot_state__prev_joint_torques_computed_safened": {
"source_path": "action/robot_state/prev_joint_torques_computed_safened",
"source_dtype": "float64"
},
"native__action__target_cartesian_position": {
"source_path": "action/target_cartesian_position",
"source_dtype": "float64"
},
"native__action__target_gripper_position": {
"source_path": "action/target_gripper_position",
"source_dtype": "float64"
},
"native__observation__camera_distortion_coefficients__16478870_left": {
"source_path": "observation/camera_distortion_coefficients/16478870_left",
"source_dtype": "float64"
},
"native__observation__camera_distortion_coefficients__16478870_right": {
"source_path": "observation/camera_distortion_coefficients/16478870_right",
"source_dtype": "float64"
},
"native__observation__camera_distortion_coefficients__36087771_left": {
"source_path": "observation/camera_distortion_coefficients/36087771_left",
"source_dtype": "float64"
},
"native__observation__camera_distortion_coefficients__36087771_right": {
"source_path": "observation/camera_distortion_coefficients/36087771_right",
"source_dtype": "float64"
},
"native__observation__camera_extrinsics__16478870_left": {
"source_path": "observation/camera_extrinsics/16478870_left",
"source_dtype": "float64"
},
"native__observation__camera_extrinsics__16478870_left_gripper_offset": {
"source_path": "observation/camera_extrinsics/16478870_left_gripper_offset",
"source_dtype": "float64"
},
"native__observation__camera_extrinsics__16478870_right": {
"source_path": "observation/camera_extrinsics/16478870_right",
"source_dtype": "float64"
},
"native__observation__camera_extrinsics__16478870_right_gripper_offset": {
"source_path": "observation/camera_extrinsics/16478870_right_gripper_offset",
"source_dtype": "float64"
},
"native__observation__camera_extrinsics__19824535_left": {
"source_path": "observation/camera_extrinsics/19824535_left",
"source_dtype": "float64"
},
"native__observation__camera_extrinsics__19824535_right": {
"source_path": "observation/camera_extrinsics/19824535_right",
"source_dtype": "float64"
},
"native__observation__camera_extrinsics__23404442_left": {
"source_path": "observation/camera_extrinsics/23404442_left",
"source_dtype": "float64"
},
"native__observation__camera_extrinsics__23404442_right": {
"source_path": "observation/camera_extrinsics/23404442_right",
"source_dtype": "float64"
},
"native__observation__camera_extrinsics__26405488_left": {
"source_path": "observation/camera_extrinsics/26405488_left",
"source_dtype": "float64"
},
"native__observation__camera_extrinsics__26405488_right": {
"source_path": "observation/camera_extrinsics/26405488_right",
"source_dtype": "float64"
},
"native__observation__camera_extrinsics__29838012_left": {
"source_path": "observation/camera_extrinsics/29838012_left",
"source_dtype": "float64"
},
"native__observation__camera_extrinsics__29838012_right": {
"source_path": "observation/camera_extrinsics/29838012_right",
"source_dtype": "float64"
},
"native__observation__camera_extrinsics__36087771_left": {
"source_path": "observation/camera_extrinsics/36087771_left",
"source_dtype": "float64"
},
"native__observation__camera_extrinsics__36087771_right": {
"source_path": "observation/camera_extrinsics/36087771_right",
"source_dtype": "float64"
},
"native__observation__camera_intrinsics__16478870_left": {
"source_path": "observation/camera_intrinsics/16478870_left",
"source_dtype": "float64"
},
"native__observation__camera_intrinsics__16478870_right": {
"source_path": "observation/camera_intrinsics/16478870_right",
"source_dtype": "float64"
},
"native__observation__camera_intrinsics__36087771_left": {
"source_path": "observation/camera_intrinsics/36087771_left",
"source_dtype": "float64"
},
"native__observation__camera_intrinsics__36087771_right": {
"source_path": "observation/camera_intrinsics/36087771_right",
"source_dtype": "float64"
},
"native__observation__camera_type__16478870": {
"source_path": "observation/camera_type/16478870",
"source_dtype": "int64"
},
"native__observation__camera_type__36087771": {
"source_path": "observation/camera_type/36087771",
"source_dtype": "int64"
},
"native__observation__controller_info__controller_on": {
"source_path": "observation/controller_info/controller_on",
"source_dtype": "bool"
},
"native__observation__controller_info__failure": {
"source_path": "observation/controller_info/failure",
"source_dtype": "bool"
},
"native__observation__controller_info__movement_enabled": {
"source_path": "observation/controller_info/movement_enabled",
"source_dtype": "bool"
},
"native__observation__controller_info__success": {
"source_path": "observation/controller_info/success",
"source_dtype": "bool"
},
"native__observation__ft_sensor__age_s": {
"source_path": "observation/ft_sensor/age_s",
"source_dtype": "float64"
},
"native__observation__ft_sensor__packet_delta": {
"source_path": "observation/ft_sensor/packet_delta",
"source_dtype": "int64"
},
"native__observation__ft_sensor__packet_discontinuity": {
"source_path": "observation/ft_sensor/packet_discontinuity",
"source_dtype": "bool"
},
"native__observation__ft_sensor__packet_no": {
"source_path": "observation/ft_sensor/packet_no",
"source_dtype": "int64"
},
"native__observation__ft_sensor__receive_monotonic_ns": {
"source_path": "observation/ft_sensor/receive_monotonic_ns",
"source_dtype": "int64"
},
"native__observation__ft_sensor__receive_unix_ns": {
"source_path": "observation/ft_sensor/receive_unix_ns",
"source_dtype": "int64"
},
"native__observation__ft_sensor__request_monotonic_ns": {
"source_path": "observation/ft_sensor/request_monotonic_ns",
"source_dtype": "int64"
},
"native__observation__ft_sensor__request_unix_ns": {
"source_path": "observation/ft_sensor/request_unix_ns",
"source_dtype": "int64"
},
"native__observation__ft_sensor__sample_index": {
"source_path": "observation/ft_sensor/sample_index",
"source_dtype": "int64"
},
"native__observation__ft_sensor__snapshot_monotonic_ns": {
"source_path": "observation/ft_sensor/snapshot_monotonic_ns",
"source_dtype": "int64"
},
"native__observation__ft_sensor__snapshot_unix_ns": {
"source_path": "observation/ft_sensor/snapshot_unix_ns",
"source_dtype": "int64"
},
"native__observation__ft_sensor__valid": {
"source_path": "observation/ft_sensor/valid",
"source_dtype": "bool"
},
"native__observation__ft_sensor__wrench": {
"source_path": "observation/ft_sensor/wrench",
"source_dtype": "float64"
},
"native__observation__robot_state__cartesian_position": {
"source_path": "observation/robot_state/cartesian_position",
"source_dtype": "float64"
},
"native__observation__robot_state__cartesian_position_with_ft_offset": {
"source_path": "observation/robot_state/cartesian_position_with_ft_offset",
"source_dtype": "float64"
},
"native__observation__robot_state__gripper_position": {
"source_path": "observation/robot_state/gripper_position",
"source_dtype": "float64"
},
"native__observation__robot_state__joint_positions": {
"source_path": "observation/robot_state/joint_positions",
"source_dtype": "float64"
},
"native__observation__robot_state__joint_torques_computed": {
"source_path": "observation/robot_state/joint_torques_computed",
"source_dtype": "float64"
},
"native__observation__robot_state__joint_velocities": {
"source_path": "observation/robot_state/joint_velocities",
"source_dtype": "float64"
},
"native__observation__robot_state__motor_torques_measured": {
"source_path": "observation/robot_state/motor_torques_measured",
"source_dtype": "float64"
},
"native__observation__robot_state__prev_command_successful": {
"source_path": "observation/robot_state/prev_command_successful",
"source_dtype": "bool"
},
"native__observation__robot_state__prev_controller_latency_ms": {
"source_path": "observation/robot_state/prev_controller_latency_ms",
"source_dtype": "float64"
},
"native__observation__robot_state__prev_joint_torques_computed": {
"source_path": "observation/robot_state/prev_joint_torques_computed",
"source_dtype": "float64"
},
"native__observation__robot_state__prev_joint_torques_computed_safened": {
"source_path": "observation/robot_state/prev_joint_torques_computed_safened",
"source_dtype": "float64"
},
"native__observation__timestamp__cameras__16478870_estimated_capture": {
"source_path": "observation/timestamp/cameras/16478870_estimated_capture",
"source_dtype": "int64"
},
"native__observation__timestamp__cameras__16478870_frame_received": {
"source_path": "observation/timestamp/cameras/16478870_frame_received",
"source_dtype": "int64"
},
"native__observation__timestamp__cameras__16478870_read_end": {
"source_path": "observation/timestamp/cameras/16478870_read_end",
"source_dtype": "int64"
},
"native__observation__timestamp__cameras__16478870_read_start": {
"source_path": "observation/timestamp/cameras/16478870_read_start",
"source_dtype": "int64"
},
"native__observation__timestamp__cameras__36087771_estimated_capture": {
"source_path": "observation/timestamp/cameras/36087771_estimated_capture",
"source_dtype": "int64"
},
"native__observation__timestamp__cameras__36087771_frame_received": {
"source_path": "observation/timestamp/cameras/36087771_frame_received",
"source_dtype": "int64"
},
"native__observation__timestamp__cameras__36087771_read_end": {
"source_path": "observation/timestamp/cameras/36087771_read_end",
"source_dtype": "int64"
},
"native__observation__timestamp__cameras__36087771_read_start": {
"source_path": "observation/timestamp/cameras/36087771_read_start",
"source_dtype": "int64"
},
"native__observation__timestamp__control__control_start": {
"source_path": "observation/timestamp/control/control_start",
"source_dtype": "int64"
},
"native__observation__timestamp__control__control_start_monotonic_ns": {
"source_path": "observation/timestamp/control/control_start_monotonic_ns",
"source_dtype": "int64"
},
"native__observation__timestamp__control__policy_start": {
"source_path": "observation/timestamp/control/policy_start",
"source_dtype": "int64"
},
"native__observation__timestamp__control__sleep_start": {
"source_path": "observation/timestamp/control/sleep_start",
"source_dtype": "int64"
},
"native__observation__timestamp__control__step_end": {
"source_path": "observation/timestamp/control/step_end",
"source_dtype": "int64"
},
"native__observation__timestamp__control__step_end_monotonic_ns": {
"source_path": "observation/timestamp/control/step_end_monotonic_ns",
"source_dtype": "int64"
},
"native__observation__timestamp__control__step_end_unix_ns": {
"source_path": "observation/timestamp/control/step_end_unix_ns",
"source_dtype": "int64"
},
"native__observation__timestamp__control__step_start": {
"source_path": "observation/timestamp/control/step_start",
"source_dtype": "int64"
},
"native__observation__timestamp__control__step_start_monotonic_ns": {
"source_path": "observation/timestamp/control/step_start_monotonic_ns",
"source_dtype": "int64"
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