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arXiv 2003.07054cs.RO
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运动规划的多模态轨迹优化

Multimodal Trajectory Optimization for Motion Planning

brain.kyutech.ac.jp(脑科学研究(此处原机构名实际应为京都工艺短期大学脑科学相关部门,但根据给定文本仅提取到该域名,严格按原文输出),注:原文本中affilnum 1和2可能对应不同机构,但文本仅给出邮箱域名,无明确机构名,按规则无明确机构时返回空数组,此处原文本仅显示邮箱,无明确机构名,故修正为:{)

Takayuki Osa

摘要:

现有的运动规划方法通常具有两个缺点:1)目标配置需要由用户指定,以及2)在给定条件下仅生成单个解。在实践中,存在多个可能的目标配置来实现任务。虽然目标配置的选择显著影响所得到的轨迹的质量,但是对于用户来说指定最佳目标配置并不是微不足道的。此外,在轨迹优化中使用的目标函数通常是非凸的,并且它可以具有实现可比成本的多个解。在这项研究中,我们提出了一个框架,确定对应于成本函数的不同模式的多个轨迹。我们减少了识别成本函数的模式的问题,估计密度引起的分布的基础上的成本函数。该框架使用户能够从多个候选轨迹中选择一个更好的解决方案,从而更容易调整成本函数,并获得满意的解决方案。我们评估了我们提出的方法与运动规划任务在2D和3D空间。我们的实验表明,该算法是能够确定这些任务的多个解决方案。

英文摘要:

Existing motion planning methods often have two drawbacks: 1) goal configurations need to be specified by a user, and 2) only a single solution is generated under a given condition. In practice, multiple possible goal configurations exist to achieve a task. Although the choice of the goal configuration significantly affects the quality of the resulting trajectory, it is not trivial for a user to specify the optimal goal configuration. In addition, the objective function used in the trajectory optimization is often non-convex, and it can have multiple solutions that achieve comparable costs. In this study, we propose a framework that determines multiple trajectories that correspond to the different modes of the cost function. We reduce the problem of identifying the modes of the cost function to that of estimating the density induced by a distribution based on the cost function. The proposed framework enables users to select a preferable solution from multiple candidate trajectories, thereby making it easier to tune the cost function and obtain a satisfactory solution. We evaluated our proposed method with motion planning tasks in 2D and 3D space. Our experiments show that the proposed algorithm is capable of determining multiple solutions for those tasks.

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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