IMAGE AND FEATURE QUALITY, IMAGE ENHANCEMENT, AND FEATURE EXTRACTION FOR OCULAR-VASCULAR AND FACIAL RECOGNITION, AND FUSING OCULAR-VASCULAR WITH FACIAL REGION AND/OR SUB-FACIAL REGION FOR BIOMETRIC SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide biometric authentication.;SOLUTION: Biometric enrollment and verification techniques for ocular-vascular, periocular, and facial regions are described. Periocular image regions can be defined on the basis of dimensions of an ocular region identified in an image of the facial region. Feature descriptors can be generated relating to interest points in the ocular and periocular regions by using a combination of patterned histogram feature descriptors. Quality metrics relating to the regions can be determined on the basis of region value scores calculated on the basis of texture surrounding the interest points. A biometric matching process for calculating a match score on the basis of the ocular and periocular regions can progressively include additional periocular regions to obtain greater match confidence.;SELECTED DRAWING: None;COPYRIGHT: (C)2019,JPO&INPIT