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Improved and simplified caching in feature matching#2731

Merged
ahojnnes merged 12 commits into
maincolmap/colmap:mainfrom
user/joschonb/cached-match-indexcolmap/colmap:user/joschonb/cached-match-indexCopy head branch name to clipboard
Aug 26, 2024
Merged

Improved and simplified caching in feature matching#2731
ahojnnes merged 12 commits into
maincolmap/colmap:mainfrom
user/joschonb/cached-match-indexcolmap/colmap:user/joschonb/cached-match-indexCopy head branch name to clipboard

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@ahojnnes

@ahojnnes ahojnnes commented Aug 23, 2024

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  • Simplifies the caching logic for both CPU and GPU based matching.
  • Introduces a new thread-safe LRU cache that allows to efficiently cache the FLANN-based descriptor index for CPU-based matching. As a result, CPU-based matching speed improves by ~20-30%.
  • Extracts the FLANN-based descriptor index as a separate interface and adds test coverage.
  • Fixes a race-condition in the dense reconstruction workspace cache.

@ahojnnes
ahojnnes merged commit 5f653ee into main Aug 26, 2024
@ahojnnes
ahojnnes deleted the user/joschonb/cached-match-index branch August 26, 2024 06:38
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