US 12,248,576 B2
Face recognition method and apparatus
Jiangfeng Yuan, Shenzhen (CN); Zhichao Li, Shenzhen (CN); Jianming Lv, Shenzhen (CN); Junwei Zhou, Shenzhen (CN); Yichao Zhang, Shenzhen (CN); Xiaogang Feng, Shenzhen (CN); Kun Ma, Shenzhen (CN); and Chuan Liao, Shenzhen (CN)
Assigned to HONOR DEVICE CO., LTD., Shenzhen (CN)
Appl. No. 17/914,208
Filed by Honor Device Co., Ltd., Shenzhen (CN)
PCT Filed May 10, 2022, PCT No. PCT/CN2022/092043
§ 371(c)(1), (2) Date Sep. 23, 2022,
PCT Pub. No. WO2023/015996, PCT Pub. Date Feb. 16, 2023.
Claims priority of application No. 202110925835.8 (CN), filed on Aug. 12, 2021.
Prior Publication US 2024/0232359 A1, Jul. 11, 2024
Int. Cl. G06F 21/57 (2013.01); G06F 21/32 (2013.01); G06V 10/12 (2022.01); G06V 40/16 (2022.01)
CPC G06F 21/57 (2013.01) [G06F 21/32 (2013.01); G06V 10/12 (2022.01); G06V 40/172 (2022.01); G06F 2221/034 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A face recognition method, comprising:
obtaining time-of-flight (TOF) data, the TOF data comprises a safety indication frame and a face recognition frame;
storing, through a kernel layer, the TOF data into a trusted execution environment (TEE);
generating an automatic exposure (AE) result in the TEE based on the TOF data, wherein the AE result is used to adjust an exposure parameter of a TOF camera;
transmitting first storage information of the TOF data in the TEE from a rich execution environment (REE) to the TEE, wherein the first storage information indicates a storage address of the TOF data in the TEE;
processing the TOF data corresponding to the first storage information into a TOF image in the TEE; and
performing face recognition in the TEE using the TOF image to obtain a recognition result.