arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2103.09556cs.RO
收藏

面向三维曲面主动信息采集的在线信息路径规划

Online Informative Path Planning for Active Information Gathering of a 3D Surface

Delft University of Technology(代尔夫特理工大学);ETH Zurich(苏黎世联邦理工学院)

Hai Zhu, Jen Jen Chung, Nicholas R. J. Lawrance, Roland Siegwart, Javier Alonso-Mora

摘要:

提出了一种利用空中机器人进行三维表面主动信息采集的在线路径规划方法。大多数现有的表面检测工作集中在规划的路径离线,可以提供完全覆盖的表面,这固有地假设表面信息是均匀分布的,因此忽略了潜在的空间相关性的信息场。在本文中,我们利用流形高斯过程(mGPs)与测地核函数映射表面信息场和计划信息路径在线滚动地平线的方式。我们的方法积极规划信息收集路径的基础上,尊重车辆的动态约束和总飞行时间预算最近的观察。我们为简单和复杂的3D表面几何形状(圆柱体和飞机模型)的模拟温度建模提供规划结果。我们证明了我们的信息规划方法优于传统的方法,如3D覆盖规划和随机探索,无论是在重建误差和信息理论指标。我们还表明,通过将信息场的空间相关性纳入使用mGPs的规划中,信息收集效率显着提高。

英文摘要:

This paper presents an online informative path planning approach for active information gathering on three-dimensional surfaces using aerial robots. Most existing works on surface inspection focus on planning a path offline that can provide full coverage of the surface, which inherently assumes the surface information is uniformly distributed hence ignoring potential spatial correlations of the information field. In this paper, we utilize manifold Gaussian processes (mGPs) with geodesic kernel functions for mapping surface information fields and plan informative paths online in a receding horizon manner. Our approach actively plans information-gathering paths based on recent observations that respect dynamic constraints of the vehicle and a total flight time budget. We provide planning results for simulated temperature modeling for simple and complex 3D surface geometries (a cylinder and an aircraft model). We demonstrate that our informative planning method outperforms traditional approaches such as 3D coverage planning and random exploration, both in reconstruction error and information-theoretic metrics. We also show that by taking spatial correlations of the information field into planning using mGPs, the information gathering efficiency is significantly improved.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑