abstract_textpWe propose a novel extension of matched filter approach by applying contrast-limited adaptive histogram equalization in pre-processing module and second derivative of Gaussian based matched filter to achieve a better retinal blood vessel structure. Proposed approach also concentrates towards extraction of thin as well as thick retinal blood vessels. The experimental results obtained for both DRIVE and STARE databases confirms that the proposed method has a higher true positive rate (sensitivity) as compared with other available retinal blood vessel segmentation approaches in literature. Further, the performance of the proposed method is also better for the extraction of pathological retinal images./p/abstract_text
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机译：& abstract_text & p我们提出一种新颖的通过应用扩展匹配滤波器的方法contrast-limited自适应直方图均衡化在预处理模块和二阶导数基于高斯分布的匹配滤波器实现一个更好的视网膜血管结构。也集中提取的薄厚的视网膜血管。驱动器和实验结果证实该方法凝视数据库有更高的真阳性(灵敏度)吗相对于其他可用视网膜血液血管分割方法在文学。此外,该方法的性能也更好的提取的病态视网膜图像。;/ p & / abstract_text
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