CPC G06V 40/1318 (2022.01) [G06V 10/141 (2022.01); G06V 10/147 (2022.01)] | 17 Claims |
1. A method for fingerprint detection, comprising:
receiving a synchronization signal of a display screen, the synchronization signal being configured to trigger a pixel array of a fingerprint sensor to expose, wherein a period of the synchronization signal is synchronized with a dimming period of the display screen, and the dimming period comprises a bright period and a dark period;
exposing each row of pixels in the pixel array in sequence based on triggering of the synchronization signal, so that a position of a pixel whose exposure time corresponding to the dark period in the pixel array is constant, wherein data of each row of the pixels after exposure is configured to obtain a fingerprint image.
|