US 12,437,496 B2
Method and apparatus for facial recognition
Jianming Lv, Shenzhen (CN); and Jiangfeng Yuan, Shenzhen (CN)
Assigned to HONOR DEVICE CO., LTD., Shenzhen (CN)
Appl. No. 17/918,816
Filed by HONOR DEVICE CO., LTD., Shenzhen (CN)
PCT Filed Apr. 27, 2022, PCT No. PCT/CN2022/089586
§ 371(c)(1), (2) Date Oct. 13, 2022,
PCT Pub. No. WO2023/015958, PCT Pub. Date Feb. 16, 2023.
Claims priority of application No. 202110920396.1 (CN), filed on Aug. 11, 2021.
Prior Publication US 2024/0221340 A1, Jul. 4, 2024
Int. Cl. G06V 10/141 (2022.01); G06F 21/32 (2013.01); G06V 10/94 (2022.01); G06V 40/16 (2022.01); G06V 40/40 (2022.01)
CPC G06V 10/141 (2022.01) [G06F 21/32 (2013.01); G06V 40/172 (2022.01); G06V 40/40 (2022.01)] 20 Claims
OG exemplary drawing
 
1. A facial recognition method, applied to an electronic device, wherein the electronic device comprises a time of flight (TOF) camera module, and the TOF camera module comprises a transmitter configured to transmit a light signal and an image sensor configured to receive reflected light; and the method comprises:
receiving a first operation by a user, wherein the first operation triggers the TOF camera module to work and initiates performing facial recognition through the TOF camera module;
controlling the transmitter to work at a first current value that is associated with a first light intensity;
determining that the transmitter is in a normal working state when the transmitter is working at the first light intensity;
in response to determining that the transmitter is in the normal working state, controlling the transmitter to work at a second current value that is associated with a second light intensity that is higher than the first light intensity;
controlling the image sensor to collect image data when the transmitter is working at the second light intensity; and
performing the facial recognition based on the image data collected when the transmitter is working at the second light intensity.