论文标题

带注释的骨骼指导的分层计划

Hierarchical Planning with Annotated Skeleton Guidance

论文作者

Uwacu, Diane, Yammanuru, Ananya, Morales, Marco, Amato, Nancy M.

论文摘要

我们提出了一种分层骨骼引导的运动计划算法来指导移动机器人。良好的骨骼绘制了包含显着自由度的C空间子空间的连通性,并能够指导计划者快速找到所需的解决方案。但是,有时骨架并不能密切代表自由的C空间,这通常会误导当前的骨骼引导的计划者。分层骨骼指导的计划策略逐渐放松其对工作空间骨骼的依赖,因为C空间被采样,从而逐渐返回一条次优路径,该路径在标准骨架引导的算法中无法保证的功能。与标准骨骼指导的计划者和其他懒惰计划策略的实验比较显示了路线图施工时间的显着改善,同时在混乱的环境中保持了多电量问题的路径质量。

We present a hierarchical skeleton-guided motion planning algorithm to guide mobile robots. A good skeleton maps the connectivity of the subspace of c-space containing significant degrees of freedom and is able to guide the planner to find the desired solutions fast. However, sometimes the skeleton does not closely represent the free c-space, which often misleads current skeleton-guided planners. The hierarchical skeleton-guided planning strategy gradually relaxes its reliance on the workspace skeleton as C space is sampled, thereby incrementally returning a sub-optimal path, a feature that is not guaranteed in the standard skeleton-guided algorithm. Experimental comparisons to the standard skeleton-guided planners and other lazy planning strategies show significant improvement in roadmap construction run time while maintaining path quality for multi-query problems in cluttered environments.

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