CPC G06V 40/13 (2022.01) [G06V 10/993 (2022.01); G06V 40/1365 (2022.01)] | 16 Claims |
1. A method for fingerprint identification, comprising:
acquiring a first image collected by a fingerprint sensor at a first exposure time;
determining whether to acquire a second image collected by the fingerprint sensor at a second exposure time according to the first image, wherein the second exposure time is continuous with the first exposure time, and a length of the second exposure time is greater than or equal to a length of the first exposure time;
performing fingerprint identification according to the first image in a case that it is determined not to acquire the second image; or performing fingerprint identification according to the first image and the second image in a case that it is determined to acquire the second image;
wherein the determining whether to acquire a second image collected by the fingerprint sensor at a second exposure time according to the first image comprises:
preprocessing the first image to acquire a value of a corresponding fingerprint parameter, wherein the fingerprint parameter comprises any one of a fingerprint signal, a fingerprint image quality score, and pixel data of the fingerprint sensor when collecting an image; and
determining to acquire the second image in a case that it is determined that the value of the fingerprint parameter is less than a first threshold;
wherein the preprocessing the first image to acquire a value of a corresponding fingerprint parameter comprises:
preprocessing the first image to acquire the value of the corresponding fingerprint parameter in a case that it is determined that the first image is not a fingerprint pattern.
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