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arXiv 1602.05460cs.ROcs.CGmath.PR
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基于随机几何图的采样运动规划新方法

New perspective on sampling-based motion planning via random geometric graphs

Tel Aviv University(特拉维夫大学)

Kiril Solovey, Oren Salzman, Dan Halperin

摘要:

在没有障碍物的情况下,许多基于采样的运动规划器构建的路线图与随机几何图(RGG)的标准模型一致。这些模型已经被研究了几十年,到目前为止,已经有大量的文献分析了RGG的各种属性和类型。Karaman和Frazzoli(2011)在他们关于最优运动规划的开创性工作中指出,如果底层RGG也具有此属性,则基于采样的规划器具有特定属性。在本文中,我们解决这个猜想,并利用它的发展的一般框架分析抽样为基础的规划。我们的框架,我们称之为本地化,镶嵌,可以很容易地转移的RGG参数从自由单位超立方体的空间穿孔的障碍,这是几何和拓扑更复杂。我们证明了它的力量,提供替代和(可以说)简单的证明概率的完整性和渐近(近)最优的概率路线图(PRM)。此外,我们介绍了几个变种的PRM,分析他们使用我们的框架,并讨论了分析的影响。

英文摘要:

Roadmaps constructed by many sampling-based motion planners coincide, in the absence of obstacles, with standard models of random geometric graphs (RGGs). Those models have been studied for several decades and by now a rich body of literature exists analyzing various properties and types of RGGs. In their seminal work on optimal motion planning Karaman and Frazzoli (2011) conjectured that a sampling-based planner has a certain property if the underlying RGG has this property as well. In this paper we settle this conjecture and leverage it for the development of a general framework for the analysis of sampling-based planners. Our framework, which we call localization-tessellation, allows for easy transfer of arguments on RGGs from the free unit-hypercube to spaces punctured by obstacles, which are geometrically and topologically much more complex. We demonstrate its power by providing alternative and (arguably) simple proofs for probabilistic completeness and asymptotic (near-)optimality of probabilistic roadmaps (PRMs). Furthermore, we introduce several variants of PRMs, analyze them using our framework, and discuss the implications of the analysis.

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。

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