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    • 1. 发明申请
    • NON-CONTACT OPTICAL MEANS AND METHOD FOR 3D FINGERPRINT RECOGNITION
    • 非接触式光学手段和3D指纹识别方法
    • WO2006016359A2
    • 2006-02-16
    • PCT/IL2005000856
    • 2005-08-09
    • CLASSIFEYE LTDCOHEN RAMIPEREZ ASHER
    • PEREZ ASHER
    • G01C21/30
    • G01C11/04G06K9/00033
    • The present invention discloses a method of recognizing 3D fingerprints by contact-less optical means. The novel method comprising inter alia the following steps of obtaining an optical contact-less means for capturing fingerprints, such that 3D optical images, selected from a group comprising minutia, forks, endings or any combination thereof are provided; obtaining a plurality of fingerprints wherein the images resolution of said fingerprints is not dependent on the distance between a camera and said inspected finger; correcting the obtained images by mis-focal and blurring restoring; obtaining a plurality of images, preferably 6 to 9 images, in the enrolment phase, under various views and angles; systematically improving the quality of the field depth of said images and the intensity per pixel; and, disengaging higher resolution from memory consumption, such that no additional optical sensor is required.
    • 本发明公开了一种通过无接触光学装置识别3D指纹的方法。 提供了以下步骤:获得用于捕获指纹的光学无接触装置的步骤,从而提供从包括细节,叉,结尾或其任何组合的组中选择的3D光学图像; 获得多个指纹,其中所述指纹的图像分辨率不依赖于相机和所述被检查手指之间的距离; 通过误聚焦和模糊恢复来校正所获得的图像; 在注册阶段,在各种视角和角度下获得多个图像,优选6到9个图像; 系统地提高所述图像的场深度和每像素的强度的质量; 并且将高分辨率与存储器消耗分开,使得不需要附加的光学传感器。