Method, device and medium for fingerprint identification
AssigneeXiaomi Inc.
InventorsChangyu Sun, Zhijie Li, Wei Sun
Life of this patent
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Abstract
A method, device and medium for fingerprint identification are provided. The method for fingerprint identification includes that: it is detected whether the number of damaged pixel units in a fingerprint identification sensor reaches a preset threshold value, and the damaged pixel units are physically damaged pixel units in the fingerprint identification sensor; and if the number of the damaged pixel units reaches the preset threshold value, identifying a fingerprint image acquired by the fingerprint identification sensor is stopped.
Claims13
A method for fingerprint identification, the method comprising:
- detecting whether the number of damaged pixel units in a fingerprint identification sensor reaches a preset threshold value, the damaged pixel units being physically damaged pixel units in the fingerprint identification sensor and being determined according to a pixel feature of each of the pixel units acquired in a preset photographic environment, wherein the pixel feature at least includes a brightness value and/or a contrast;
- and
- stopping identifying a fingerprint image acquired by the fingerprint identification sensor if the number of the damaged pixel units reaches the preset threshold value.
A device for fingerprint identification, the device comprising:
- a processor;
- and
- a memory configured to store instructions executable by the processor,
- wherein the processor is configured to:
- detect whether the number of damaged pixel units in a fingerprint identification sensor reaches a preset threshold value, the damaged pixel units being physically damaged pixel units in the fingerprint identification sensor and being determined according to a pixel feature of each of the pixel units acquired in a preset photographic environment, wherein the pixel feature at least includes a brightness value and/or a contrast;
- and
- stop identifying a fingerprint image acquired by the fingerprint identification sensor if the number of the damaged pixel units reaches the preset threshold value.
A non-transitory computer-readable storage medium having stored therein instructions that, when executed by a processor of a mobile terminal, causes the mobile terminal to perform a method for fingerprint identification, the method comprising:
- detecting whether the number of damaged pixel units in a fingerprint identification sensor reaches a preset threshold value, the damaged pixel units being physically damaged pixel units in the fingerprint identification sensor and being determined according to a pixel feature of each of the pixel units acquired in a preset photographic environment, wherein the pixel feature at least includes a brightness value and/or a contrast;
- and
- stopping identifying a fingerprint image acquired by the fingerprint identification sensor if the number of the damaged pixel units reaches the preset threshold value.
Dependencies are inferred from the claim text.