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PUPIL AND IRIS SEGMENTATION SYSTEM IN DIGITAL IMAGES

机译:数字图像中的瞳孔和虹膜分割系统

摘要

pupil and iris segmentation system in digital images. The present invention is a pupil and iris segmentation process to be used within an iris recognition system within the context of identifying individuals. The iris segmentation system according to the present invention provides for the replacement of matrix operations by vector operations, and for this purpose the system locates the centers and radii of the pupil and iris to allow separation of relevant and sufficient biometric information. for the identification of the individual comprising the steps of: - image smoothing - in which a digital noise elimination filter is applied; - Binarization - in which the representation of the eye image is transformed into black or white pixels, eliminating the intermediate values; - determination of the center and radius of the pupil; and - determining the center and radius of the iris.
机译:数字图像中的瞳孔和虹膜分割系统。本发明是在识别个人的背景下在虹膜识别系统内使用的瞳孔和虹膜分割过程。根据本发明的虹膜分割系统提供了用矢量运算代替矩阵运算的方法,并且为此目的,系统定位瞳孔和虹膜的中心和半径以允许分离相关的和足够的生物统计信息。用于识别个人的步骤包括:-图像平滑-应用数字噪声消除滤波器; -二值化-将眼睛图像的表示形式转换为黑色或白色像素,消除中间值; -确定瞳孔的中心和半径; -确定虹膜的中心和半径。

著录项

  • 公开/公告号BRPI0705101B1

    专利类型

  • 公开/公告日2019-03-12

    原文格式PDF

  • 申请/专利权人 UNIVERSIDADE ESTADUAL DE CAMPINAS - UNICAMP;

    申请/专利号BR2007PI05101

  • 发明设计人 ROGER FREDY LARICO CHAVEZ;

    申请日2007-11-06

  • 分类号G06K9;A61B5/1171;G06K9/40;G06T7/136;G06T7/62;

  • 国家 BR

  • 入库时间 2022-08-21 12:03:10

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