arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0906.4789cs.CV
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改进特征提取和子集选择的高效IRIS识别

Efficient IRIS Recognition through Improvement of Feature Extraction and subset Selection

Islamic Azad University Mashhad Branch(伊斯兰阿扎德大学马什哈德分校);Ferdowsi University of Mashhad(马什哈德费尔多西大学)

Amir Azizi, Hamid Reza Pourreza

摘要:

最优特征子集的选择和分类已成为虹膜识别领域的一个重要问题。在本文中,我们提出了几种方法虹膜特征子集的选择和矢量创建。利用轮廓波变换技术从虹膜图像中提取确定性特征序列。Contourlet变换捕捉虹膜图像的内在几何结构。该方法将虹膜图像分解成一组方向子带,在不同尺度下捕获不同方向的纹理细节,从而降低特征向量的维数,我们使用该方法从归一化的虹膜图像中只提取有效位和信息。在这种方法中,我们忽略脆弱位。最后,我们使用支持向量机(支持向量机)分类器来近似我们所提出的系统中的人识别量。实验结果表明,大多数方法减少了处理时间,提高了分类精度,而且虹膜特征向量长度比其他方法要小得多。

英文摘要:

The selection of the optimal feature subset and the classification has become an important issue in the field of iris recognition. In this paper we propose several methods for iris feature subset selection and vector creation. The deterministic feature sequence is extracted from the iris image by using the contourlet transform technique. Contourlet transform captures the intrinsic geometrical structures of iris image. It decomposes the iris image into a set of directional sub-bands with texture details captured in different orientations at various scales so for reducing the feature vector dimensions we use the method for extract only significant bit and information from normalized iris images. In this method we ignore fragile bits. And finally we use SVM (Support Vector Machine) classifier for approximating the amount of people identification in our proposed system. Experimental result show that most proposed method reduces processing time and increase the classification accuracy and also the iris feature vector length is much smaller versus the other methods.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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