Image matchers find 2000+ inliers between different places 60m apart
gabriberton · x · 2026-11-09
Follow-up to the VPR thread: even when two images show different places, image matchers often find something to match — they aren't robust to false positives. Examples show different places 119m apart on Baidu yielding 2366 inliers (0.80 ratio) and 60m apart on Pitts30k yielding 2810 inliers (0.83 ratio). The author hopes FlexGlue changes this so matching could be useful again for VPR re-ranking, noting it would be a quick experiment to run.
Related event: Image Matching Reranking Proves Redundant with Strong VPR Retrieval(2 posts)→
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