System for single image multimodal biometric recognition
US12131575B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 13, 2022 |
| Grant date | Oct 29, 2024 |
| Priority date | — |
| Expiry date | May 13, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/3025
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A biometric identification system acquires a multimodal image. The system is trained to determine three embeddings: a first embedding associated with features present in a first modality, an intersection embedding associated with features present in both the first and a second modality, and an XOR embedding associated with features that are not shared between the first modality and the second modality. Once trained, the system may process a multimodal query image to determine query embedding data. Additional information, such as minutiae depicted in the multimodal query image may also be determined. The query embedding data, and in some implementations the additional information, may be compared with enrolled embedding data associated with a previously enrolled user. If the comparison exceeds a threshold value, an identity may be asserted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.