基于眼底结构特征的彩色眼底图像视盘定位方法

doi:10.3969/j.issn.0258-8021. 2016. 03.001

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Abstract The size and the shape of optic disc (OD) in fundus images are very important for diagnosing the fundus diseases, therefore the detection and localization of OD have important significance for computer-aided diagnosis of the ophthalmology diseases. In this paper, the OD localization method in color fundus images based on the characteristics of fundus structure was proposed. Firstly, vein vessels in fundus image were extracted based on the bot-hat transformation. Then, parabolic fitting algorithm based on the least square method was applied to get the preliminary localization of OD. Finally, the accurate localization of OD was determined through window-scanning. Comparative experimental results were obtained from four publicly available datasets (DRIVE, DIABETED0, STARE and MESSIDOR). Testing results were 100%, 98.6%, 93.8%, 99.75% respectively, which proved the accuracy and robust of the proposed method.

Key words： optic disc localization bot-hat transformation parabolic fitting window scanning

Received: 12 November 2015

PACS:

R318

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	Articles by authors
	Xiao Zhitao
	Shao Yiting
	Zhang Fang
	Wen Jia
	Geng Lei
	Wu Jun
	Shang Dandan
	Su Long
	Shan Chunyan

Cite this article:

Xiao Zhitao,Shao Yiting,Zhang Fang, et al. Optic Disc Localization in Color Fundus Images Based on Fundus Structure Feature[J]. Chinese Journal of Biomedical Engineering, 2016, 35(3): 257-263.

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http://cjbme.csbme.org/EN/10.3969/j.issn.0258-8021. 2016. 03.001 OR http://cjbme.csbme.org/EN/Y2016/V35/I3/257

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