HypeVPR: Exploring Hyperbolic Space for Perspective to Equirectangular Visual Place Recognition

• URL: http://arxiv.org/abs/2506.04764v1
• Date: Thu, 05 Jun 2025 08:47:15 GMT
• Title: HypeVPR: Exploring Hyperbolic Space for Perspective to Equirectangular Visual Place Recognition
• Authors: Suhan Woo, Seongwon Lee, Jinwoo Jang, Euntai Kim,
• Abstract summary: We introduce HypeVPR, a novel hierarchical embedding framework in hyperbolic space.<n>HypeVPR is designed to address the unique challenges of perspective-to-equirectangular (P2E) VPR.
• Score: 16.46501527058266
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: When applying Visual Place Recognition (VPR) to real-world mobile robots and similar applications, perspective-to-equirectangular (P2E) formulation naturally emerges as a suitable approach to accommodate diverse query images captured from various viewpoints. In this paper, we introduce HypeVPR, a novel hierarchical embedding framework in hyperbolic space, designed to address the unique challenges of P2E VPR. The key idea behind HypeVPR is that visual environments captured by panoramic views exhibit inherent hierarchical structures. To leverage this property, we employ hyperbolic space to represent hierarchical feature relationships and preserve distance properties within the feature space. To achieve this, we propose a hierarchical feature aggregation mechanism that organizes local-to-global feature representations within hyperbolic space. Additionally, HypeVPR adopts an efficient coarse-to-fine search strategy, optimally balancing speed and accuracy to ensure robust matching, even between descriptors from different image types. This approach enables HypeVPR to outperform state-of-the-art methods while significantly reducing retrieval time, achieving up to 5x faster retrieval across diverse benchmark datasets. The code and models will be released at https://github.com/suhan-woo/HypeVPR.git.

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