计算机技术与发展2016，Vol.26Issue(8)：65-68,74,5.DOI:10.3969/j.issn.1673-629X.2016.08.014
基于双远心镜头的虹膜图像采集方法
Iris Image Acquisition Method Based on Bilateral Telecentric Lens
摘要
Abstract
The complete information iris image can improve the otherness between different iris,which is helpful to improve the accuracy of the recognition system,and also to analyze the detail feature of iris texture. But,in virtue of the equipment,environment,man-made and other factors,the acquisition of the iris image will appear some spots inevitably which will cause the missing part of the iris informa-tion. Therefore,high quality iris image is very important to the whole iris recognition system. In this paper,the complete iris image acqui-sition method is studied. It uses the special optical structure and the wide depth of field of the bilateral telecentric lens,elimination of the influence of parallax and distortion caused by the lens,and applies the method of image stitching and anastomosing to get the complete iris image. Finally,the comparison test is carried out on the recognition and matching of the iris image stitching and one no stitching. Experi-mental results indicate that the matching rate of the iris image obtained by the method is high,with rich texture and complete information, and the efficiency of the recognition system is also promoted.关键词
虹膜识别/图像拼接/完整性/双远心镜头Key words
iris recognition/image stitching/integrity/bilateral telecentric lens分类
信息技术与安全科学引用本文复制引用
宋辉,王明威..基于双远心镜头的虹膜图像采集方法[J].计算机技术与发展,2016,26(8):65-68,74,5.基金项目
国家自然科学基金资助项目(61271365) （61271365）
