Method and device for optical fingerprint recognition, and computer-readable storage medium
AssigneeBeijing Xiaomi Mobile Software Co., Ltd.
InventorJu Tang
Life of this patent
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Abstract
The present disclosure relates to a method for optical fingerprint recognition, a device for optical fingerprint recognition, and a computer-readable storage medium. The method may include: receiving optical signals obtained by sensors in a first area when detecting a finger to be recognized is placed in the first area; determining a plurality of fingerprint optical signals in a coverage area corresponding to the finger to be recognized in the optical signals; and recognizing the finger to be recognized according to the plurality of fingerprint optical signals in the coverage area.
Claims20
A method for optical fingerprint recognition, comprising:
- receiving optical signals obtained by sensors in a first area when a finger to be recognized is placed in the first area, wherein the first area comprises a coverage area within a fingerprint contour of the finger to be recognized;
- determining the fingerprint contour is determined using a signal range of a preset fingerprint optical signal that changes based on ambient light;
- determining, from the optical signals, a plurality of fingerprint optical signals in the coverage area by selecting a portion of the optical signals in the signal range of the preset fingerprint optical signal;
- recording the plurality of fingerprint optical signals as a fingerprint image;
- and
- processing the fingerprint image and recognizing the finger to be recognized according to the plurality of fingerprint optical signals in the coverage area of the fingerprint image.
A device for optical fingerprint recognition, comprising:
- one or more processors;
- a non-transitory computer-readable storage medium for storing instructions executable by the one or more processors;
- wherein the one or more processors are configured to perform acts comprising:
- receive optical signals obtained by sensors in a first area when a finger to be recognized is placed in the first area, wherein the first area comprises a coverage area within a fingerprint contour of the finger to be recognized;
- determine the fingerprint contour using a signal range of a preset fingerprint optical signal that changes based on ambient light;
- determine, from the optical signals, a plurality of fingerprint optical signals in the coverage area by selecting a portion of the optical signals in the signal range of the preset fingerprint optical signal;
- record the plurality of fingerprint optical signals as a fingerprint image;
- and
- process the fingerprint image and recognize the finger to be recognized according to the plurality of fingerprint optical signals in the coverage area of the fingerprint image.
A computer-readable storage medium having stored therein instructions that, when executed by one or more processors, are configured to perform acts comprising:
- receiving optical signals obtained by sensors in a first area when a finger to be recognized is placed in the first area, wherein the first area comprises a coverage area within a fingerprint contour of the finger to be recognized;
- determining the fingerprint contour using a signal range of a preset fingerprint optical signal that changes based on ambient light;
- determining, from the optical signals, a plurality of fingerprint optical signals in the coverage area by selecting a portion of the optical signals in the signal range of the preset fingerprint optical signal;
- recording the plurality of fingerprint optical signals as a fingerprint image;
- and
- processing the fingerprint image and recognizing the finger to be recognized according to the plurality of fingerprint optical signals in the coverage area of the fingerprint image.
Dependencies are inferred from the claim text.