Apparatus and method for fingerprint imaging
AssigneeShanghai Harvest Intelligence Technology Co., Ltd.
InventorLee Ya-Ti Chang
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Abstract
The present disclosure provides an apparatus and a method for fingerprint imaging. The apparatus includes: a light source configured to generate light, wherein a light intensity distribution of the light generated by the light source conforms to a preset encoding mode; a sensing surface on which the light generated by the light source forms a signal light with fingerprint information; and an imaging module configured to image the signal light to obtain a fingerprint image. Embodiments of the present disclosure can encode the fingerprint image by the encoding mode and can “encrypt” the fingerprint image by the encoding mode, thus a clear fingerprint image can be obtained by decoding based on obtaining the preset encoding mode, which can effectively improve the security of fingerprint imaging.
Claims16
An apparatus for imaging a fingerprint, comprising:
- a light source configured to generate light, wherein a light intensity distribution of the light generated by the light source conforms to a preset encoding mode;
- a sensing surface on which the light generated by the light source forms a signal light with fingerprint information;
- and
- an imaging module configured to image the signal light to obtain a fingerprint image;
- wherein the preset encoding mode comprises a distribution code or a light source code, wherein the distribution code comprises at least one distribution pattern, and the light source code comprises at least one light source pattern;
- wherein among the light generated by the light source, at least the light having an emergent angle within a range from 40 degrees to 60 degrees has a light intensity distribution conforming to the distribution code.
Dependencies are inferred from the claim text.