基于Matlab的虹膜病理识别

Iris Pathological Recognition Based on Matlab

虹膜的相关区域反映了身体相应器官的健康状态,通过对虹膜图像的处理便可初步判断体内受损害器官组织的衰弱程度。虹膜病理特征具有很多种类,针对虹膜阳光放射沟这一典型的虹膜病理特征进行研究。首先,对虹膜图像进行预处理,采用Canny检测算法进行边缘提取,利用模板窗口求卷积法找出虹膜瞳孔中心再通过Hough变换圆检测算法确定虹膜内外边界。然后利用虹膜阳光放射沟特性,设置横向窗口和纵向窗口筛选和标记出阳光放射沟。最后,运用Matlab的GUI界面虹膜阳光放射沟识别的实现与展示。

This pape rmainly studies the detection algorithms of radii solaris,which is one of typical iris pathological features.Firstly,the image preprocessing:using Canny edge detection algorithm to extract the edge of gray images,estimating the center of the iris pupil through the method of template window convolution,then pinpoint the iris inner and outer boundaries based on the estimated pupil center and circle Hough Transform.Then setting a fixed-length horizontal and vertical window to select and mark the eligible radii solaris by according to the feature of radii solaris.Finally,using the GUI of Matlab to show the identification and display of radii solaris.