arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 1609.07720cs.RO
收藏

SegMatch:基于段的3D点云闭环算法

SegMatch: Segment based loop-closure for 3D point clouds

Autonomous Systems Lab, ETH(苏黎世联邦理工学院自主系统实验室)

Renaud Dubé, Daniel Dugas, Elena Stumm, Juan Nieto, Roland Siegwart, Cesar Cadena

摘要:

3D数据上的闭环检测是一项具有挑战性的任务,通常通过采用基于图像的解决方案来实现。基于局部特征的方法具有模糊性和对环境变化的鲁棒性,而基于全局特征的方法具有视点依赖性。我们提出了SegMatch,一个可靠的闭环检测算法的基础上匹配的3D段。分段在局部描述和全局描述之间提供了一个很好的折衷,既结合了它们的优点,又减少了它们各自的缺点。SegMatch不依赖于“完美分割”的假设,也不依赖于环境中“对象”的存在,这允许在大规模非结构化环境中可靠地执行。我们定量地证明了SegMatch可以在KITTI里程计数据集的最大序列上以1Hz的频率实现精确定位。此外,我们还展示了该算法如何在在线操作过程中实时可靠地检测和关闭循环。此外,SegMatch算法的源代码将在发布后提供。

英文摘要:

Loop-closure detection on 3D data is a challenging task that has been commonly approached by adapting image-based solutions. Methods based on local features suffer from ambiguity and from robustness to environment changes while methods based on global features are viewpoint dependent. We propose SegMatch, a reliable loop-closure detection algorithm based on the matching of 3D segments. Segments provide a good compromise between local and global descriptions, incorporating their strengths while reducing their individual drawbacks. SegMatch does not rely on assumptions of "perfect segmentation", or on the existence of "objects" in the environment, which allows for reliable execution on large scale, unstructured environments. We quantitatively demonstrate that SegMatch can achieve accurate localization at a frequency of 1Hz on the largest sequence of the KITTI odometry dataset. We furthermore show how this algorithm can reliably detect and close loops in real-time, during online operation. In addition, the source code for the SegMatch algorithm will be made available after publication.

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。

↑