arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2109.01569cs.CVcs.RO
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地面图像的深度度量学习

Deep Metric Learning for Ground Images

Robert Bosch GmbH(罗伯特·博世有限公司);University of Hildesheim(希尔德斯海姆大学);Goethe University(歌德大学)

Raaghav Radhakrishnan, Jan Fabian Schmid, Randolf Scholz, Lars Schmidt-Thieme

摘要:

基于地面纹理的定位方法是一种低成本、高精度的机器人自定位方法。这些方法估计给定查询图像的姿态,即,相对于其姿态在应用区域中已知的一组参考图像,从面向下的相机对地面的当前观察。在这项工作中,我们处理的初始定位任务,其中我们没有关于当前机器人定位的先验知识。在这种情况下,定位方法必须考虑所有可用的参考图像。然而,为了减少计算工作量和接收错误结果的风险,我们希望仅考虑那些实际上与查询图像重叠的参考图像。为此,我们提出了一种深度度量学习方法,该方法检索与查询图像最相似的参考图像。与现有的地面图像图像检索方法相比,我们的方法实现了更好的召回性能,并提高了最先进的地面纹理定位方法的定位性能。

英文摘要:

Ground texture based localization methods are potential prospects for low-cost, high-accuracy self-localization solutions for robots. These methods estimate the pose of a given query image, i.e. the current observation of the ground from a downward-facing camera, in respect to a set of reference images whose poses are known in the application area. In this work, we deal with the initial localization task, in which we have no prior knowledge about the current robot positioning. In this situation, the localization method would have to consider all available reference images. However, in order to reduce computational effort and the risk of receiving a wrong result, we would like to consider only those reference images that are actually overlapping with the query image. For this purpose, we propose a deep metric learning approach that retrieves the most similar reference images to the query image. In contrast to existing approaches to image retrieval for ground images, our approach achieves significantly better recall performance and improves the localization performance of a state-of-the-art ground texture based localization method.

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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