US 11,721,087 B2
Living body detection method and apparatus, electronic device, storage medium, and related system to which living body detection method is applied
Wenhan Luo, Guangdong (CN); Yaodong Wang, Guangdong (CN); and Wei Liu, Guangdong (CN)
Assigned to Tencent Technology (Shenzhen) Company Limited, Shenzhen (CN)
Filed by Tencent Technology (Shenzhen) Company Limited, Guangdong (CN)
Filed on Oct. 14, 2020, as Appl. No. 17/70,435.
Application 17/070,435 is a continuation of application No. PCT/CN2019/112196, filed on Oct. 21, 2019.
Claims priority of application No. 201811250025.1 (CN), filed on Oct. 25, 2018.
Prior Publication US 2021/0073516 A1, Mar. 11, 2021
Int. Cl. G06V 10/00 (2022.01); G06V 10/764 (2022.01); G06V 40/16 (2022.01); G06V 10/82 (2022.01); G06V 20/52 (2022.01); G06V 40/18 (2022.01); G06V 40/40 (2022.01)
CPC G06V 10/764 (2022.01) [G06V 10/82 (2022.01); G06V 20/52 (2022.01); G06V 40/165 (2022.01); G06V 40/168 (2022.01); G06V 40/172 (2022.01); G06V 40/193 (2022.01); G06V 40/40 (2022.01)] 19 Claims
OG exemplary drawing
 
1. A living body detection method that is performed by an electronic device, the method comprising:
traversing a plurality of images of a to-be-detected object and using a currently traversed image as a current image;
performing face feature extraction on the current image to obtain an eigenvector corresponding to the current image, the eigenvector being used for describing a structure of a face feature of the to-be-detected object in the current image;
capturing an action behavior of the to-be-detected object in response to a change of the eigenvector corresponding to the current image relative to an average value of a plurality of eigenvectors in a feature sequence being less than a change threshold, each of the plurality of eigenvectors corresponding to a historical image in the feature sequence, where the historical image is a traversed image in the plurality of images; and
determining the to-be-detected object as a living body in response to capturing the action behavior of the to-be-detected object.