Fingerprint identification method and device

A fingerprint identification and fingerprint image technology, which is applied in character and pattern recognition, instruments, computer parts, etc., can solve the problems of lower fingerprint image recognition rate, lower user experience, troublesome user authentication, etc., so as to improve the recognition rate and improve The effect of user experience
CN105224930AActive Publication Date: 2016-01-06GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
Publication Date
2016-01-06

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Abstract

The embodiment of the invention discloses a fingerprint identification method and device. The method comprises the following steps: continuously carrying out a fingerprint image collection on a target finger at least twice, and obtaining at least two copies of initial fingerprint image data of the target finger; and calculating the mean value of pixel values of corresponding pixel points in each copy of initial fingerprint image data, mapping the mean value into the corresponding pixel points to form target fingerprint image data, and carrying out fingerprint identification according to the target fingerprint image data. According to the fingerprint identification method and device, multiple copies of initial fingerprint image data are obtained; the mean values of the pixel values of the corresponding pixel points in multiple copies of initial fingerprint image data are calculated; and the mean values are mapped into the corresponding pixel points, so as to form the target fingerprint image data. According to the method, the fingerprint image identification rate is improved by a mean value noise reduction method; the problem of low fingerprint image identification rate caused by noise points generated when a fingerprint sensor collects the fingerprint image data of the target finger is solved; and the use experience of a user is improved.
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Description

technical field

[0001] Embodiments of the present invention relate to the field of fingerprint identification, and in particular, to a method and device for fingerprint identification. Background technique

[0002] With the progress and development of science, there are more and more ways of security authentication. Among them, the way of using fingerprints for security authentication has attracted more and more attention of users.

[0003] At present, the fingerprint recognition technology provides a more accurate and fast authentication method for users, which avoids the situation that the user forgets to bring the magnetic card or the magnetic card is demagnetized due to improper use in the magnetic card authentication method of the prior art, and the authentication cannot be realized. The existing fingerprint recognition technology includes two parts: registration and authentication. First, the user collects the fingerprint image data of his target finger through the fin...

Claims

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