Electronic device and fingerprint authentication method thereof

一种电子设备及其指纹认证方法

Abstract

The invention discloses an electronic device and a fingerprint authentication method thereof. The fingerprint authentication method comprises the process of reference fingerprint setting and the process of authority authentication. The process of reference fingerprint setting comprises the step of receiving a first fingerprint image sent by a fingerprint collecting unit, the step of converting the first fingerprint image based on a mapping function to produce a distorted first fingerprint image, and the step of storing the distorted first fingerprint image to serve as a reference fingerprint image. The process of authority authentication comprises the step of receiving a second fingerprint image sent by the fingerprint collecting unit, the step of carrying out conversion same as the conversion used in the process of reference fingerprint setting on the second fingerprint image based on the mapping function to produce a distorted second fingerprint image, and the step of determining whether authentication passes or not by comparing the distorted second fingerprint image with the reference image. By means of the electronic device and the fingerprint authentication method thereof, real fingerprints of a user are prevented from being stolen or revealed.
本发明公开了一种电子设备及其指纹认证方法。该方法包括参考指纹设定处理和权限认证处理。所述参考指纹设定处理包括:接收通过指纹采集单元发送来的第一指纹图像;基于映射函数对所述第一指纹图像进行变换以产生畸变后的第一指纹图像;保存产生畸变后的第一指纹图像,作为参考指纹图像。所述  权限认证处理包括:接收通过指纹采集单元发送来的第二指纹图像;基于所述映射函数对所述第二指纹图像进行与所述参考指纹设定处理相同的变换以产生畸变后的第二指纹图像;通过比较所述产生畸变后的第二指纹图像和所述参考图像是来确定是否认证通过。本发明较好地避免用户的真实指纹被盗取或泄漏。

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Patent Citations (4)

    Publication numberPublication dateAssigneeTitle
    CN-101163009-AApril 16, 2008株式会社日立制作所用户认证系统、认证服务器、终端以及防篡改设备
    CN-1617161-AMay 18, 2005北京握奇数据系统有限公司Finger print characteristic matching method based on inter information
    DE-2417282-A1November 14, 1974Calspan CorpVorrichtung zum erkennen eines musters
    JP-H10154232-AJune 09, 1998Shinko Electric Co Ltd, 神鋼電機株式会社個人認証方法および個人認証システム

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Cited By (1)

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