Retinal Vessel Center Line Tracking Using Bilateral Filter and Canny Edge Detector
This paper presents a new method to track the center line of retinal blood vessel with sub-pixel accuracy. The method is based on a modified Canny edge detection method with a bilateral filter. In this method, Rather than Gaussian filter as it normally used, a bilateral filter is used in Canny edge detection method to remove the image noise and provide a better vessel cross-section profiles. There are three stages of the method. In the first stage, the modified Canny detection with bilateral filter is used to detection all edges of the vessels. In the second stage, the edges of the vessels are then used to obtain their corresponding vessel crossing-sections. And the vessel sample profiles are searched from the vessel crossing-sections using local maximum and local minimum. In the last stage, the Gaussian model is used to fit the vessel sample profiles, and the zeros cross of the second order derivatives of the Gaussian fit vessel sample profiles are then used to represent the boundaries of the blood vessels. The peaks of the Gaussian fits are then used as positions of vessel center lines. The method outputs the center lines in sub-pixel accuracy.
Retinal vessel detection Retinal vessel centerline tracking Bilateral filter Canny edge detection
Chuang Miao Zhenhua Chai Xiaolin Sun Zhao Y. Duan Ling G. Wang Samuel H. Chang
College of Electronic Science & Engineering Changchun Province, P.R.China Institute of Mathematics Changchun Province, P.R.China College of Computer Software Jilin University, Changchun Province, P.R.China
国际会议
The 31st International Congress on Imaging Science(第31届国际影像科学大会 ICIS2010)
北京
英文
372-375
2010-05-12（万方平台首次上网日期，不代表论文的发表时间）