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    • 7. 发明专利
    • Fingerprint image acquiring device, fingerprint authenticating apparatus, fingerprint image acquiring method, and fingerprint authenticating method
    • 指纹图像获取装置,手指识别装置,指纹图像获取方法和手指识别方法
    • JP2010049379A
    • 2010-03-04
    • JP2008211407
    • 2008-08-20
    • Fujitsu Ltd富士通株式会社
    • YAMADA SHIGEFUMI
    • G06T1/00A61B5/117G06T3/00G06T7/00
    • G06K9/00026G06K9/00073G06K9/0008G06T3/4053
    • PROBLEM TO BE SOLVED: To enhance extraction performance of a feature amount using a fingerprint image with a plurality of fingerprint images integrated therein, and enhance authentication accuracy by achieving higher resolutions of the fingerprint images in finger print authentication using fingerprint images. SOLUTION: The apparatus uses a feature amount which can be extracted from fingerprint images to be acquired by a fingerprint sensor (a sweep type fingerprint sensor 14, a planer type fingerprint sensor 42) so as to determine whether higher resolution is available or not for each area of the fingerprint images, enhances resolutions by applying high-resolution processing to areas available of higher resolutions, and extracts the feature amounts existing in the fingerprint images. The apparatus extracts the feature amounts from the fingerprint images of which the resolutions are enhanced by the processing to perform the fingerprint authentication by using the feature amounts. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:使用具有集成在其中的多个指纹图像的指纹图像来提高特征量的提取性能,并且通过使用指纹图像在指纹认证中实现指纹图像的更高分辨率来提高认证精度。 解决方案:该装置使用可由指纹图像提取的特征量,由指纹传感器(扫描型指纹传感器14,刨床型指纹传感器42)获取,以便确定较高分辨率是可用的,或者 不是针对指纹图像的每个区域,通过对可用于更高分辨率的区域应用高分辨率处理来提高分辨率,并提取指纹图像中存在的特征量。 该装置通过使用特征量进行指纹认证的处理,从分辨率增强的指纹图像中提取特征量。 版权所有(C)2010,JPO&INPIT