arXiv:2507.19851cs.RO2025-07ICRA

无需复杂模型,用任意平面快速完成多视角机械臂手眼标定

PlaneHEC: Efficient Hand-Eye Calibration for Multi-view Robotic Arm via Any Point Cloud Plane Detection

  • 基于平面约束构建可解释的标定方程
  • 先闭式求解再迭代优化,精度显著提升
  • 适合需要快速部署的工业机器人场景

手眼标定是视觉引导机器人系统中的关键任务,用于确定相机坐标系与机械臂末端之间的变换矩阵。现有方法在多视角系统中通常依赖精确几何模型或人工干预,泛化能力差且效率低下。为此,本文提出PlaneHEC,一种无需复杂模型、仅需深度相机即可实现的通用手眼标定方法,利用任意平面(如墙面、桌面)即可完成最优最快标定。该方法基于平面约束建立手眼标定方程,具有强可解释性与良好泛化能力。同时采用从闭式解出发、经迭代优化提升精度的综合方案,显著提高标定准确率。我们在仿真与真实环境对PlaneHEC进行全面评估,并与多种点云基标定方法对比,验证其优越性。本方法通过创新的计算模型设计,实现了通用且高效的标定,为多智能体系统与具身智能的发展提供有力支持。

原文摘要 · Abstract (English)

Hand-eye calibration is an important task in vision-guided robotic systems and is crucial for determining the transformation matrix between the camera coordinate system and the robot end-effector. Existing methods, for multi-view robotic systems, usually rely on accurate geometric models or manual assistance, generalize poorly, and can be very complicated and inefficient. Therefore, in this study, we propose PlaneHEC, a generalized hand-eye calibration method that does not require complex models and can be accomplished using only depth cameras, which achieves the optimal and fastest calibration results using arbitrary planar surfaces like walls and tables. PlaneHEC introduces hand-eye calibration equations based on planar constraints, which makes it strongly interpretable and generalizable. PlaneHEC also uses a comprehensive solution that starts with a closed-form solution and improves it withiterative optimization, which greatly improves accuracy. We comprehensively evaluated the performance of PlaneHEC in both simulated and real-world environments and compared the results with other point-cloud-based calibration methods, proving its superiority. Our approach achieves universal and fast calibration with an innovative design of computational models, providing a strong contribution to the development of multi-agent systems and embodied intelligence.

手眼标定点云机器人深度相机

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