A novel method of optic disk segmentation based on visual saliency and rotary scanning.
10.7507/1001-5515.201706013
- Author:
Xinrong CAO
1
,
2
;
Lanyan XUE
3
;
Jiawen LIN
3
;
Lun YU
3
Author Information
1. College of Physics and Information Engineering, Fuzhou University, Fuzhou 350116, P.R.China
2. Fujian Provincial Key Laboratory of Information Processing and Intelligent Control, Minjiang University, Fuzhou 350121, P.R.China.cxrxmu@163.com.
3. College of Physics and Information Engineering, Fuzhou University, Fuzhou 350116, P.R.China.
- Publication Type:Journal Article
- Keywords:
optic disk segmentation;
rotary scanning;
visual saliency
- From:
Journal of Biomedical Engineering
2018;35(2):229-236
- CountryChina
- Language:Chinese
-
Abstract:
Fast optic disk localization and boundary segmentation is an important research topic in computer aided diagnosis. This paper proposes a novel method to effectively segment optic disk by using human visual characteristics in analyzing and processing fundus image. After a general analysis of optic disk features in fundus images, the target of interest could be located quickly, and intensity, color and spatial distribution of the disc are used to generate saliency map based on pixel distance. Then the adaptive threshold is used to segment optic disk. Moreover, to reduce the influence of vascular, a rotary scanning method is devised to achieve complete and continuous contour of optic disk boundary. Tests in the public fundus images database Drishti-GS have good performances, which mean that the proposed method is simple and rapid, and it meets the standard of the eye specialists. It is hoped that the method could be conducive to the computer aided diagnosis of eye diseases in the future.
