Patent ID: 11972638
Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A face living body detection method performed by a computing device, the method comprising:
obtaining a first face image of a target detection object in a first illumination condition and a second face image of the target detection object in a second illumination condition;
determining a difference image according to the first face image and the second face image;
extracting a feature map from the difference image, and decoupling an object reflectivity corresponding to the target detection object and an object normal vector corresponding to the target detection object from the feature map, the object reflectivity being used for representing texture information, and the object normal vector being used for representing depth information; and
determining whether the target detection object is a living body according to the object reflectivity and the object normal vector.