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observation.depth.egocentric
array 2D
observation.lidar
list
observation.imu.quaternion
list
observation.imu.accelerometer
list
observation.imu.gyroscope
list
observation.imu.rpy
list
observation.odometry.position
list
observation.odometry.velocity
list
observation.odometry.rpy
list
observation.odometry.quat
list
observation.arm_joints
list
observation.leg_joints
list
observation.hand_joints
list
observation.tactile.sensor_id
list
observation.tactile.values
array 2D
action
list
timestamp
float32
frame_index
int64
episode_index
int64
index
int64
task_index
int64
next.done
bool
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Check out the documentation for more information.

Humanoid-Everyday · stepit action(G1 子集)

一个自包含的标准 LeRobot v2.1 数据集,由原始 Humanoid-Everyday 数据集的 Unitree G1 子集 重新表达而来。与原始数据唯一的区别是 action 列被替换成了一个 41 维、包含完整 base 状态 (位置 + 姿态 + 线速度)的动作向量;其余所有列均逐字节保持不变,可直接用标准 LeRobot 加载器读取。

  • 动作空间:41 维 = base(10) + G1 身体 29 关节 + 双手开合 2;抽取相应切片即可喂给 stepit(Unitree G1 29-DOF)控制器(见下文 stepit qpos)。
  • 规模:4068 episodes / 1,781,092 frames / 246 tasks / 9 chunks,fps = 30robot_type = g1
  • 体积:≈ 394 GB(parquet ≈ 391 GB + 视频 ≈ 3 GB + meta ≈ 2 MB)。

原始数据是 G1/H1 混合的(共 8954 episodes)。stepit 只支持 Unitree G1,因此 4886 个 H1 episode 被跳过,只保留 4068 个 G1 episode(被跳过的清单见 meta/skipped_manifest.json)。


目录结构

data_stepit/
├── data/                                 # 每个 episode 一个 parquet(逐帧 observation + action)
│   └── chunk-XXX/episode_YYYYYY.parquet
├── videos/                               # 每个 episode 一个 mp4(第一视角 RGB,H.264)
│   └── chunk-XXX/egocentric/episode_YYYYYY.mp4
└── meta/
    ├── info.json                         # 数据集级元数据 + features schema(action 为 41 维)
    ├── stats.json                        # 全局逐列统计(action + 若干 observation 列)
    ├── episodes.jsonl                    # 每 episode 的 length / tasks / 全局帧区间 / instruction
    ├── episodes_stats.jsonl              # 每 episode 逐列统计(占位,保留 LeRobot 结构)
    ├── tasks.jsonl                       # task_index → 任务名(共 246 个 task)
    ├── hand_thresholds.json              # 手部开/合二值化所用的 Otsu 阈值及标定信息
    ├── converted_manifest.json           # 已转换 episode 清单
    └── skipped_manifest.json             # 被跳过的非 G1 episode 清单(含关节维度 signature)
  • 文件名沿用原始稀疏编号episode_index 不连续),parquet 与 mp4 通过 episode_index 一一对齐。
  • 编号约定:chunk = episode_index // 1000;路径模板见 info.jsondata_path / video_path

坐标系与单位约定

单位 坐标系
位置 position 米 (m) 里程计/世界系
四元数 quat 无量纲,顺序 (w, x, y, z) 里程计/世界系
线速度 velocity / base_lin_vel m/s base(机体)系(已实测确认,见下文)
角速度 gyroscope rad/s base 系
关节角 弧度 (rad) 各关节本地定义
时间 timestamp 秒 (s)
深度 depth 米 (m) 相机系

每帧包含的所有列(parquet 每行 = 1 帧)

列名 类型 形状 含义
observation.depth.egocentric list<list<float>> 480×640 第一视角深度图(米)。RGB 不在 parquet 里,在 videos/
observation.lidar list<list<float>> (N, 3) LiDAR 点云 (x,y,z),N 每帧可变(示例约 4700 点)
observation.imu.quaternion list<float> 4 IMU 姿态四元数
observation.imu.accelerometer list<float> 3 IMU 线加速度
observation.imu.gyroscope list<float> 3 IMU 角速度(base 系,[·]z 为偏航角速度)
observation.imu.rpy list<float> 3 IMU roll / pitch / yaw
observation.odometry.position list<float> 3 机体里程计位置 (x, y, z)
observation.odometry.velocity list<float> 3 机体线速度 (vx, vy, vz),base 系
observation.odometry.rpy list<float> 3 机体 roll / pitch / yaw
observation.odometry.quat list<float> 4 机体姿态四元数 (w, x, y, z)
observation.arm_joints list<float> 14 手臂关节角(弧度),左臂 7 + 右臂 7
observation.leg_joints list<float> 15 腿 + 腰关节角(弧度),左腿 6 + 右腿 6 + 腰 3
observation.hand_joints list<float> 14 Dex3 灵巧手关节角(弧度),左手 7 + 右手 7
observation.tactile.sensor_id list<int64> (M,) 触觉传感器 id,M 每帧可变(示例 18)
observation.tactile.values list<list<float>> (M, 4) 触觉读数(含 NaN padding)
observation.leg_velocity_cmd list<float> 3 可选列(仅 --leg-velocity 生成时存在),见下文
action list<float> 41 见下节(本数据集唯一被改写的列)
timestamp float 帧时间戳(秒)
frame_index int64 episode 内帧序号(从 0 开始)
episode_index int64 全局 episode 序号(稀疏)
index int64 全局帧序号
task_index int64 任务序号(对应 meta/tasks.jsonl
next.done bool 是否为该 episode 的最后一帧

action(41 维)逐维详解

布局为 **[ base(10) , 身体29关节 , 双手2 ]**:

 ┌──────────────── base (10) ────────────────┐┌──────────── body 29 ────────────┐┌ hands 2 ┐
 [ pos(3) | quat(4) wxyz | lin_vel(3) ]        [ leg+waist(15) | arm(14) ]         [ L | R ]
   0:3       3:7            7:10                  10:25            25:39              39  40

base:action[0:10](机体状态,连续 10 维)

下标 名称 含义 来源
0 base_pos_x 机体位置 x (m) observation.odometry.position[0]
1 base_pos_y 机体位置 y (m) observation.odometry.position[1]
2 base_pos_z 机体位置 z (m) observation.odometry.position[2]
3 base_quat_w 姿态四元数 w observation.odometry.quat[0]
4 base_quat_x 姿态四元数 x observation.odometry.quat[1]
5 base_quat_y 姿态四元数 y observation.odometry.quat[2]
6 base_quat_z 姿态四元数 z observation.odometry.quat[3]
7 base_lin_vel_x base 系线速度 vx (m/s) observation.odometry.velocity[0]
8 base_lin_vel_y base 系线速度 vy (m/s) observation.odometry.velocity[1]
9 base_lin_vel_z base 系线速度 vz (m/s) observation.odometry.velocity[2]
  • base_lin_vel 直接取 observation.odometry.velocity 的全 3 维,已实测为 base 系,无需旋转:在整圈 转向的行走 episode 上,它与「base 系差分位置」的吻合度 MAE≈0.033,明显优于世界系的 0.066。
  • 多数操作任务机体几乎不动,base_lin_vel 大多 ≈ 0;真正有行走的 episode(如 chunk-007)才有明显非零值。

body:action[10:39](G1 身体 29 关节,弧度,stepit 原生顺序)

下标 关节名(依次)
10:16 左腿 6 left_hip_pitch, left_hip_roll, left_hip_yaw, left_knee, left_ankle_pitch, left_ankle_roll
16:22 右腿 6 right_hip_pitch, right_hip_roll, right_hip_yaw, right_knee, right_ankle_pitch, right_ankle_roll
22:25 腰 3 waist_yaw, waist_roll, waist_pitch
25:32 左臂 7 left_shoulder_pitch, left_shoulder_roll, left_shoulder_yaw, left_elbow, left_wrist_roll, left_wrist_pitch, left_wrist_yaw
32:39 右臂 7 right_shoulder_pitch, right_shoulder_roll, right_shoulder_yaw, right_elbow, right_wrist_roll, right_wrist_pitch, right_wrist_yaw
  • action[10:25](腿+腰 15 维)整段直接来自 observation.leg_jointsaction[25:39](手臂 14 维) 整段直接来自 observation.arm_joints —— 同机器人、同顺序、同单位,无需 retarget

hands:action[39:41](每手开/合二值)

下标 名称 含义
39 left_hand_closed 左手:0 = 张开,1 = 握合
40 right_hand_closed 右手:0 = 张开,1 = 握合

由连续的 observation.hand_joints 经 Otsu 阈值二值化得到,方法见下文

action 提取 stepit qpos

⚠️ stepit 的 36 维 MuJoCo qpos 不再是单一切片。 由于把线速度插进了 base,qpos (base 7 + G1 身体 29 关节,stepit 原生顺序:左腿→右腿→腰→左臂→右臂)现在是 **action[0:7] ++ action[10:39]**(即跳过中间 3 维线速度 action[7:10])。

qpos = np.concatenate([action[:, 0:7], action[:, 10:39]], axis=1)   # (T, 36),喂给 stepit

observation 各列详解

  • observation.depth.egocentric (480, 640) float:第一视角深度图,单位米。对应的 RGB 帧不在 parquet 中,以 H.264 mp4 存于 videos/chunk-XXX/egocentric/episode_YYYYYY.mp4(480×640×3,30 fps)。
  • observation.lidar (N, 3):LiDAR 点云,每点 (x, y, z),点数 N 逐帧可变
  • **observation.imu.***:quaternion(4)、accelerometer(3)、gyroscope(3, 角速度)、rpy(3)。
  • **observation.odometry.***:position(3)、velocity(3, base 系线速度)、rpy(3)、quat(4, wxyz)。
  • observation.arm_joints (14) = 左臂 7 + 右臂 7(关节角,弧度)。
  • observation.leg_joints (15) = 左腿 6 + 右腿 6 + 腰 3(关节角,弧度)。
  • observation.hand_joints (14) = 左手 7 + 右手 7,Dex3 灵巧手连续关节角(弧度)。每手 7 维顺序为 0 ThumbRot, 1 ThumbLow, 2 ThumbUp, 3 MidLow, 4 MidUp, 5 IdxLow, 6 IdxUp
  • observation.tactile.sensor_id (M,) int64 / observation.tactile.values (M, 4) float:触觉传感器 id 及其读数,M 逐帧可变,未用到的槽位以 NaN padding。

手部二值是怎么来的

原始 observation.hand_joints 是 Dex3 灵巧手的连续关节角。转换时用「中指 + 食指弯曲 DOF」的平均绝对值 mean(|θ|)(左手全局下标 [3,4,5,6]、右手 [10,11,12,13])作为「握合程度」代理量,再用 Otsu 阈值二值化:

  • 左手阈值 0.6253,右手阈值 0.6578(见 meta/hand_thresholds.json);
  • score > 阈值 记为 1(握合),否则 0(张开);
  • 阈值在 24 个 G1 episode / 8259 帧上标定,可在转换时用 --left-thr/--right-thr 覆盖。

可选:腿部速度指令列 observation.leg_velocity_cmd

转换时加 --leg-velocity额外写入一列 observation.leg_velocity_cmd(3 维 float32),供 Psi0 这类 速度控制的腿部 policy 直接读取。加不加这个 flag 都不影响 action(始终 41 维)

下标 名称 来源
0 base_lin_vel_x (vx) observation.odometry.velocity[0]
1 base_lin_vel_y (vy) observation.odometry.velocity[1]
2 base_ang_vel_yaw (ωyaw) observation.imu.gyroscope[2]

注意区分两者action 里的 base_lin_velaction[7:10])= odometry.velocity 的**全 3 维线速度 [vx, vy, vz]**;而这里的可选列 leg_velocity_cmd = [vx, vy, ωyaw](平面平移速度 + 偏航角速度)。 用途不同,可按需各取所需。该列是否存在由 finalize_stepit_meta.py 自动探测并登记进 info.json / stats.json


任务(tasks)构成

246 个 tasktask_index → 任务名meta/tasks.jsonl;每 episode 的自然语言 instructionmeta/episodes.jsonl。任务名以类别前缀组织,7 个顶层类别:

类别 task 数 类别 task 数
Basic 64 HRI(人机交互) 41
Articulated(铰接物体) 48 deformable(可形变物体) 19
Locomanip(移动操作) 47 Tool_use(工具使用) 19
Precision(精细操作) 8

快速读取示例

import pyarrow.parquet as pq
import numpy as np

t = pq.read_table("data/chunk-003/episode_003370.parquet")
action = np.array(t.column("action").to_pylist())    # (T, 41)

base_pos     = action[:, 0:3]      # 机体位置 (m)
base_quat    = action[:, 3:7]      # 姿态四元数 wxyz
base_lin_vel = action[:, 7:10]     # base 系线速度 vx,vy,vz(下游速度感知控制器用)
leg_waist    = action[:, 10:25]    # 腿15:左腿6 + 右腿6 + 腰3
arms         = action[:, 25:39]    # 臂14:左臂7 + 右臂7
left_closed  = action[:, 39]       # 0/1
right_closed = action[:, 40]       # 0/1

# 喂给 stepit 的 36 维 MuJoCo qpos(跳过中间 3 维线速度)
qpos = np.concatenate([action[:, 0:7], action[:, 10:39]], axis=1)   # (T, 36)

与原始 Humanoid-Everyday 的关系

  • 源仓库:USC-PSI-Lab/humanoid-everyday(LeRobot v2.1,fps=30,G1/H1 混合,共 8954 episode / 3,436,171 帧 / 246 task)。用关节维度签名区分机器人:G1 = (leg 15, arm 14, hand 14, action 28), H1 = (leg 13, arm 14, hand 12, action 26)。
  • **本数据集只保留 G1、只改写 action**,其余列逐字节不变。
  • 原始 action 是「上半身操作指令」:G1 为 28 维 [hand(14), arm(14)],只含手 + 臂的目标关节角, 不含腿、不含底盘、不含速度。本数据集的 41 维 action 是从 observation 里的腿/臂/底盘列重建的 (见各维「来源」列),与原始 action 的语义不同:原始是上半身指令,本数据集是完整机体 qpos 参考 + 线速度。
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