Vision based target tracking that distinguishes facial feature targets
US11854240B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Dec 15, 2020 |
| Grant date | Dec 26, 2023 |
| Priority date | — |
| Expiry date | Feb 27, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/173
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A facial recognition method using online sparse learning includes initializing target position and scale, extracting positive and negative samples, and extracting high-dimensional Haar-like features. A sparse coding function can be used to determine sparse Haar-like features and form a sparse feature matrix, and the sparse feature matrix in turn is used to classify targets.
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