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基于小波变换模极大原理的虹膜定位方法研究

发表时间:2012-11-30  浏览量:1181  下载量:495
全部作者: 王勇,杨玲
作者单位: 西安电子科技大学电子工程学院;长安大学附中
摘 要: 针对如何快速、准确地定位虹膜,提出基于小波变换模极大原理的虹膜定位方法。该方法在提取虹膜信号的基础上,通过分析虹膜信号的特点,用小波变换模极大原理实现虹膜信号的奇异性检测,定位出虹膜内边界,并在此基础上引入高斯圆检测算子检测虹膜外边界。仿真实验表明:小波变换模极大原理能快速、准确地实现虹膜定位,减少虹膜定位过程中的搜索盲目性。
关 键 词: 图像处理;虹膜特征;虹膜识别;小波变换模极大;虹膜定位
Title: Research of iris location method based on wavelet transform modulus maxima theory
Author: WANG Yong, YANG Ling
Organization: School of Electronic Engineering, Xidian University; Atlached Middle School, Chang’an University
Abstract: Biometric recognition technology based on iris of a human eye has received considerable attentions in the area of science, technology and enterprises due to iris stable, unique, noninvasive features. How to locate iris quickly and precisely is a key technique in iris recognition. The paper described an iris location method based on wavelet transform modulus maxima theory to solve the problem. The method was used to detect iris signature singularity after iris signature extracted was analyzed to locate iris inner boundary. Further, Gauss circle detection operator was introduced to locate iris outer boundary. The experiments show that the iris location method based on wavelet transform modulus maxima theory can find iris boundary in the iris image. It also has high reliability and reduces blindness in search of the original method.
Key words: image processing; iris feature; iris recognition; wavelet transform modulus maxima; iris location
发表期数: 2012年11月第22期
引用格式: 王勇,杨玲. 基于小波变换模极大原理的虹膜定位方法研究[J]. 中国科技论文在线精品论文,2012,5(22):2146-2150.
 
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