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基于Gabor能量滤波器的虹膜分割技术的研究
Study on Iris Patterns Segmentation Technology for Gabor Energy Filter
【摘要】 为了能快捷方便地从眼部图像中分割虹膜图像,本文将原用于模拟脑部主要直观皮层中复杂细胞的Gabor能量算子用作眼部图像的滤波函数.实验表明,通过对该Gabor能量函数非CRF抑制、相关参数的分析和优化,该方法能较好地将瞳孔纹理从眼部图像分离,从而方便地实现虹膜提取,并能简化虹膜识别系统的程序、提高其处理速度.
【Abstract】 In order to segment the iris patterns from an eye picture quickly and conveniently,this paper treats the Gabor energy operator which was formerly used to simulate the complex cells in primary visual cortex as an eye picture filter function.Through non-CRF inhibiting,and analyzing and optimizing related function parameters,the experiment indicates that this method can distinguish the pupil texture from an eye picture much better,thus can implement the iris texture extraction conveniently,simplify the procedure of the iris recognition system,and improve its processing speed.
【Key words】 Gabor energy filter; classical receptive field; non-CRF inhibition;
- 【文献出处】 湖南工程学院学报(自然科学版) ,Journal of Hunan Institute of Engineering(Natural Science Edition) , 编辑部邮箱 ,2006年03期
- 【分类号】TN713;TP391.41
- 【下载频次】98