Detection of the Optic Disc in Images of the Retina Using Gabor Filters and Phase Portrait Analysis

被引：0
作者：
Rangayyan, Rangaraj M. [1 ]
Zhu, Xiaolu [1 ]
Ayres, Fabio J. [1 ]
机构：
[1] Univ Calgary, Schulich Sch Engn, Dept Elect & Comp Engn, Calgary, AB T2N 1N4, Canada
来源：
4TH EUROPEAN CONFERENCE OF THE INTERNATIONAL FEDERATION FOR MEDICAL AND BIOLOGICAL ENGINEERING | 2009年 / 22卷 / 1-3期
关键词：
Retinal imaging; Optic disc; Gabor filters; Phase portraits; Segmentation; Oriented texture; ARCHITECTURAL DISTORTION; VESSEL SEGMENTATION; NERVE HEAD;
D O I：
暂无
中图分类号：
R318 [生物医学工程];
学科分类号：
0831 ;
摘要：
We propose a method using Gabor filters and phase portraits to locate automatically the optic disc (OD) in fundus images of the retina. Based on the property that the OD appears as the focal point of convergence of the blood vessels of the retina, the method includes detection of the blood vessels using Gabor filters, and the detection of peaks in the node map via phase portrait analysis. Additional conditions are applied based upon the intensity characteristics of fundus images and the OD. Forty images from the DRIVE database were used to evaluate the performance of the proposed method. The OD was successfully detected in all of the 40 images.
引用
收藏
页码：468 / 471
页数：4
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