opencv computation_error ai_generated true

Not enough good matches found between images

ID: opencv/feature-matching-poor

Also available as: JSON · Markdown
78%Fix Rate
82%Confidence
3Evidence
2023-01-01First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
4 active — — —

Root Cause

Feature matching returned too few good matches.

generic

Workarounds

  1. 90% success Use Lowes ratio test: keep matches where dist1 < 0.75*dist2
  2. 88% success Try different detectors: SIFT for accuracy, ORB for speed

Dead Ends

Common approaches that don't work:

  1. Lower distance threshold to accept more matches 72% fail

    Many false matches

  2. Use brute force matcher for everything 68% fail

    Slow on large descriptors