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arXiv 2204.09786cs.RO
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用于汽车多普勒雷达的鲁棒点集配准方法评价

Evaluation of Robust Point Set Registration Applied to Automotive Doppler Radar

Faculty of Computer Science(计算机科学学院);Faculty of Electrical Engineering and Information Technology(电气工程与信息技术学院);Chair of Automation Technology(自动化技术教研室)

Karim Haggag

摘要:

点集配准是在两个点集之间找到最佳对齐的过程,并且它是不同领域中的常见任务,特别是在汽车和移动机器人领域。在文献中提出了许多方法,其中迭代最近点ICP是这方面的一种众所周知的方法,其在两个点集之间建立显式对应以实现配准任务。然而,这项工作有兴趣实现注册,而不建立任何显式的对应关系,两个点集之间,以下的概率框架。点集配准中最关键的任务是如何详细描述代价函数,该代价函数度量两个点集之间的距离。概率框架包括两种可能的方法来构建成本函数:求和和似然。这项工作的主要重点是分析和比较这两种方法的行为。因此,除了估计误差之外,还使用1D合成场景来逐步构建成本函数。最后,这项工作使用两个数据集进行评估:一个二维合成数据集和一个真实的数据集。评估过程中,比较和分析的估计误差和估计的不确定性。因此,在评估过程中使用了两种不同的方法:归一化估计误差平方NEES和非可信性指标NCI。一个77 GHz的汽车多普勒雷达提供了真实的数据集,并在真正的评估,我们评估的自我运动估计的机器人作为注册的应用程序。

英文摘要:

Point set registration is the process of finding the best alignment between two point sets, and it is a common task in different domains, especially in the automotive and mobile robotics domains. Lots of approaches are proposed in the literature, where the iterative closest point ICP is a well-known approach in this vein, which builds an explicit correspondence between both point sets to achieve the registration task. However, this work is interested in achieving the registration without building any explicit correspondence between both point sets, following a probabilistic framework. The most critical task in point set registration is how to elaborate the cost function, which measures the distance between both point sets. The probabilistic framework includes two possible ways to build the cost function: The summing and the likelihood. The main focus of this work is to analyze and compare the behavior of both approaches. Therefore, a 1D synthetic scenario is used to build the cost function step by step, besides the estimation error. Finally, this work uses two data sets for evaluation: A 2D synthetic data set and a real data set. The evaluation process compares and analyzes the estimation error and estimated uncertainty. Thus, two different methods are used in the evaluation process: The normalized estimation error squared NEES and noncredibility index NCI. A 77 GHz automotive Doppler radar provides the real data set, and in the real evaluation, we evaluate the ego-motion estimation of a robot as an application for the registration.

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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