Approximate cross-check for real-time feature matching
US10671883B1 · kind B1 · utility
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Key dates
| Filing date | Mar 29, 2019 |
| Grant date | Jun 2, 2020 |
| Priority date | — |
| Expiry date | Mar 29, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V20/48
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of feature matching is provided. The method includes the steps of (A) determining a set of correspondences between a set of reference feature points for a first image and a set of target feature points for a second image using a processor to compute a descriptor matching function for each pair of reference and target feature points and (B) reducing the set of correspondences using the processor to perform an approximate cross-check to obtain a set of valid correspondences based upon the descriptor matching function computed for each pair of feature points.
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