Efficient across-camera target re-identification method based on similarity
US11836966B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 25, 2022 |
| Grant date | Dec 5, 2023 |
| Priority date | — |
| Expiry date | Aug 25, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V20/52
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An efficient across-camera target re-identification method based on similarity, which obtains a plurality of matching pairs and similarity scores thereof through two groups of targets to be matched; wherein for the matching pairs that are not matched by both parties, only a part of the matching pairs with higher similarity scores are selected each time, and the matching pairs are traversed according to the order of the similarity scores thereof from large to small, and the matching pairs and the similarity scores thereof are output as a matching result; when any target to be matched in a matching pair already appears in the matching result, the target cannot be output as the matching result; unmatched matching pairs are repeated traversed until the matching result reaches the expectation. The method firstly solves the multi-target matching problem based on similarity, and greatly reduces the time complexity and improves the efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.