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基于SVM的眼底图像中红色病灶的检测

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摘要 红色病灶(RLs)与背景颜色相近、与血管颜色几乎相同、眼底成像硬件造成的眼底图像光照不均、对比度低等因素给RLs的检测带来了困难。本文提出一种基于SVM的检测方法。首先通过CLAHE增强眼底图像对比度,并利用病灶与其领域的灰度差粗分割获得红色病灶候选区域;接着用C-V活动轮廓模型提取精确轮廓;最后用SVM分类器剔除候选RLs中的背景、血管等干扰,获得RLs的精确检测。数据集采用公开的糖尿病视网膜病变图像库DIARETDB1,实验结果:敏感性为90.5%,特异性为88.9%。
作者 方毅 潘林
出处 《福建电脑》 2017年第1期10-12,共3页 Journal of Fujian Computer
基金 福建省自然科学基金:基于信息融合的糖尿病视网膜病变计算机辅助诊断系统关键技术研究(2016J01297)
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