Loop closure detection (LCD) is an indispensable module in simultaneous localization and mapping. It is responsible to recognize pre-visited areas during the navigation of a robot, providing auxiliary information to revise pose estimation. Unlike most current methods which focus on seeking an appropriate representation of images, we propose a novel two-stage pipeline dominated by the estimation of spatial geometric relationship. Specifically, to avoid unnecessary memory costs, consecutive images are segmented into sequences as per the similarity of their global features. Then the sequence descriptor is incrementally inserted into hierarchical navigable small world for the construction of reference database, from which the most similar image for the query one is searched parallelly. To further identify whether the candidate pair is geometry-consistent, a feature matching method termed as bidirectional manifold representation consensus (BMRC) is proposed. It constructs local neighborhood structures of feature points via manifold representation, and formulates the matching problem into an optimization model, enabling linearithmic time complexity via a closed-form solution. Meanwhile, an accelerated version of it is introduced (BMRC*), which performs about 63% faster than BMRC in an image pair with 352 initial correspondences. Extensive experiments on nine publicly available datasets demonstrate that BMRC and BMRC* perform well in feature matching and the proposed pipeline has remarkable performance in the LCD task.


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    Titel :

    Loop Closure Detection With Bidirectional Manifold Representation Consensus


    Beteiligte:
    Zhang, Kaining (Autor:in) / Li, Zizhuo (Autor:in) / Ma, Jiayi (Autor:in)


    Erscheinungsdatum :

    01.04.2023


    Format / Umfang :

    3513042 byte




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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