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虹膜定位
引用本文:何家峰,廖曙铮,叶虎年,李 柱.虹膜定位[J].中国图象图形学报,2000,5(3):253-255.
作者姓名:何家峰  廖曙铮  叶虎年  李 柱
作者单位:华中理工大学机械学院仪器所!武汉430074
摘    要:为了提高虹膜定位的速度以及虹膜定位算法的健壮性,提出了一种粗定位与精定位相结合的两步定位法,用以进行虹膜定位,并对现有的虹膜定位算法进行了一些改进,实验结果表明,用两步法进行虹膜定位可以加快定位速度,减少搜索计算的盲目性。

关 键 词:虹膜定位  虹膜鉴别  身份鉴别技术  粗定位  精定位
收稿时间:6/8/1999 12:00:00 AM
修稿时间:1999/10/9 0:00:00

Iris Location
HE Jia-feng,LIAO Shu-zheng,YE Hu-nian and LI Zhu.Iris Location[J].Journal of Image and Graphics,2000,5(3):253-255.
Authors:HE Jia-feng  LIAO Shu-zheng  YE Hu-nian and LI Zhu
Institution:Instrument Institute,Mechanical School,Huazhong University of Science and Technology,Wuhan 430074;Instrument Institute,Mechanical School,Huazhong University of Science and Technology,Wuhan 430074;Instrument Institute,Mechanical School,Huazhong University of Science and Technology,Wuhan 430074;Instrument Institute,Mechanical School,Huazhong University of Science and Technology,Wuhan 430074
Abstract:A two step location approach combining coarse location with fine location is presented, and an extant iris location algorithm is improved in order to fasten the speed of iris location and make the iris location algorithm more robust. Grey scale projection approach is used for the coarse iris location and a kind of dynamic circular edge template is adopted by the fine iris location. Experiments show that the method has good performance of sub pixel precision and about 1 second on speed compared with 3~5 seconds by the original iris location method. The two step location approach can fasten location speed and decrease the blindness of search computation, and the improved iris location algorithm is reasonably more robust than the original one.
Keywords:Iris location  Iris identification  Iris
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