Fingerprint matching method and apparatus, and electronic device

Abstract

Some embodiments of the present application provide a fingerprint matching method and apparatus, and an electronic device. The fingerprint matching method includes: acquiring a fingerprint image; determining whether the acquired fingerprint image matches with a preset fingerprint image; detecting whether the finger has left the fingerprint acquisition area and the number of unsuccessful matches is greater than the preset matching number when the acquired fingerprint image does not match the preset fingerprint image, and reacquiring the fingerprint image If the finger has not left the fingerprint collection area and the number of unsuccessful matches is less than or equal to the preset matching number. The present application also provides a fingerprint matching device and an electronic device adopting the aforementioned fingerprint matching method. By adopting the embodiments of the present application, it is possible to collect a plurality of user fingerprint images for matching in a single press process of a user to prevent that successful fingerprint authentication requires pressing for many times due to poor fingerprint images, thereby reducing false reject rate of fingerprint authentication and improving user experience.

Description

technical field [0001] The present application relates to the field of biometric identification, in particular to a fingerprint matching method, device and electronic equipment. Background technique [0002] Nowadays, with the rapid development of intelligent terminal equipment, fingerprint recognition technology is widely used in electronic devices such as mobile phones and tablet computers. Convenience; the fingerprint authentication process is as follows: first, the user to be authenticated presses his finger to the fingerprint collection area of ​​the fingerprint sensor, and then the fingerprint sensor will collect a frame of fingerprint image and match it with the pre-stored fingerprint image. If the match is successful, it will be determined as identity If the authentication is passed, otherwise the identity authentication fails. [0003] However, in the existing fingerprint authentication process, if the user's current fingerprint quality is poor, for example, the fi...

AI Technical Summary

Problems solved by technology

[0003] However, in the existing fingerprint authentication process, if the user's current fingerprint quality is poor, for example, the fingerprint texture is shallow, the finger is dry or wet, etc., it may cause the user's fingerprint collected by the fingerprint sensor to fail to pass through after the user performs a pressing operation. For fingerprint authentication, the user needs to perform multiple pressing operations to pass the fingerprint authentication, that is, when the quality of the user's finger print is poor, the false rejection rate (FRR) of the fingerprint authentication is high; The proportion of multiple fingerprint images that are judged to be non-identical fingers during fingerprint matching

The high rejection rate of fingerprint authentication directly leads to an increase in the possibility of normal fingerprint authentication failure of legitimate users. Usually, in this case, the user needs to perform multiple pressing operations to pass the authentication, which will seriously reduce the user experience.

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