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iris recognition

matlab 识别 虹膜

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代码描述

中文说明:虹膜识别系统主要包括自动分词系统,基于 Hough 变换,并且能够本地化圆形的瞳孔和虹膜区域,阻断眼睑和睫毛和思考。提取的虹膜区域然后被转化为矩形块与恒定的尺寸,以占成像不一致之处。最后,从 1 D 日志 Gabor 滤波器的相位数据提取精制,量子到四个层次编码虹膜的独特模式到逐位生物模板。汉明距离受雇于虹膜模板的分类和发现两个模板进行匹配 (如果统计独立考试不及格。系统的执行与完美识别一套 75 眼图像 ;然而,624 图像的另一组试验导致假接受和假分别拒绝率的 0.005%和 0.238%。因此,虹膜识别证明是可靠和准确的生物特征识别技术。


English Description:

The iris recognition system consists of an automatic segmentation system that is based on the Hough transform, and is able to localise the circular iris and pupil region, occluding eyelids and eyelashes, and reflections. The extracted iris region was then normalised into a rectangular block with constant dimensions to account for imaging inconsistencies. Finally, the phase data from 1D Log-Gabor filters was extracted and quantised to four levels to encode the unique pattern of the iris into a bit-wise biometric template.The Hamming distance was employed for classification of iris templates, and two t


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