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arXiv 2401.08263cs.CV
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变化环境中用于动态视觉地点识别的多技术序列信息一致性方法

Multi-Technique Sequential Information Consistency For Dynamic Visual Place Recognition In Changing Environments

University of Essex(埃塞克斯大学);Queensland University of Technology(昆士兰科技大学);University of Southampton(南安普顿大学)

Bruno Arcanjo, Bruno Ferrarini, Michael Milford, Klaus D. McDonald-Maier, Shoaib Ehsan

AI总结:

本文提出 MuSIC 系统,通过分析各 VPR 技术顶部匹配候选的帧间序列一致性,在在线逐帧基础上选择最优技术,从而在无需额外真值信息的情况下提升变化环境中的视觉地点识别性能。

摘要:

视觉地点识别(VPR)是机器人导航与定位系统中的关键组成部分,使机器人能够仅凭图像数据识别地点。由于每日光照变化、季节性天气变化以及不同视角导致地点外观发生显著变化,VPR 面临巨大挑战。目前,没有任何单一 VPR 技术能在所有环境条件下都表现优异,每种技术各有独特的优势与不足,因此结合多种技术可以获得更可靠的 VPR 性能。现有的多方法方案要么依赖在线真值信息(通常难以获得),要么采用暴力技术组合,在高方差技术集合下可能降低性能。针对这些不足,我们提出了一种名为多序列信息一致性(MuSIC)的 VPR 系统,该系统利用序列信息在在线逐帧基础上选择最具一致性的技术。对于集合中的每种技术,MuSIC 通过分析其顶部匹配候选的帧间连续性来计算各自的序列一致性,然后直接比较这些一致性,为当前查询图像选择最优技术。利用序列信息在 VPR 方法之间进行选择,在不同基准数据集上整体提升了 VPR 性能,同时避免了对运行环境额外真值信息的需求。

英文摘要:

Visual place recognition (VPR) is an essential component of robot navigation and localization systems that allows them to identify a place using only image data. VPR is challenging due to the significant changes in a place's appearance driven by different daily illumination, seasonal weather variations and diverse viewpoints. Currently, no single VPR technique excels in every environmental condition, each exhibiting unique benefits and shortcomings, and therefore combining multiple techniques can achieve more reliable VPR performance. Present multi-method approaches either rely on online ground-truth information, which is often not available, or on brute-force technique combination, potentially lowering performance with high variance technique sets. Addressing these shortcomings, we propose a VPR system dubbed Multi-Sequential Information Consistency (MuSIC) which leverages sequential information to select the most cohesive technique on an online per-frame basis. For each technique in a set, MuSIC computes their respective sequential consistencies by analysing the frame-to-frame continuity of their top match candidates, which are then directly compared to select the optimal technique for the current query image. The use of sequential information to select between VPR methods results in an overall VPR performance increase across different benchmark datasets, while avoiding the need for extra ground-truth of the runtime environment.

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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