文章基本信息

标题：An Automatic Screening Method to Detect Optic Disc in the Retina
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作者：Murugan.R ; Reeba Korah
期刊名称：International Journal of Advanced Information Technology
印刷版ISSN：2231-1920
电子版ISSN：2231-1548
出版年度：2012
卷号：2
期号：4
出版社：Academy & Industry Research Collaboration Center (AIRCC)
摘要：The locationof Optic Disc (OD) is of critical importance in retinal image analysis. This research papercarries out a new automated methodology to detect the optic disc (OD) in retinal images. OD detectionhelps the ophthalmologists to find whether the patient is affected by diabetic retinopathy or not. Theproposed technique is to use line operator which gives higher percentage of detection than the alreadyexisting methods. The purpose of this project is to automatically detect the position of the OD in digitalretinal fundus images. The method starts with converting the RGB image input into its LAB component.This image is smoothed using bilateral smoothing filter. Further, filtering is carried out using lineoperator. After which gray orientation and binary map orientation is carried out and then with the use ofthe resulting maximum image variation the area of the presence of the OD is found. The portions otherthan OD are blurred using 2D circular convolution. On applying mathematical steps like peakclassification, concentric circles design and image difference calculation, OD is detected. The proposedmethod was evaluated using a subset of the STARE project's dataset and the success percentage was foundto be 96%
关键词：Automated detection; Optic Disc; Line;Filter Operator; Retinal Imaging