Automatic detection of Optic Disc based on Mathematical Morphology in Retinal Fundus Images
نویسندگان
چکیده
Optic disc segmentation is a prerequisite in automatic analysis of retinal disease in color fundus images. In this paper, an algorithm for detection of optic disc (OD) in fundus images is presented. Mathematical morphology is used for segmentation of candidate optic disc region, followed by determining its center and approximating the circular optic disc boundary using circular model. Proposed method is evaluated on public database, MESSIDOR. The proposed optic disc segmentation algorithm yielded an average overlapping score of 99.47% between true OD and segmented OD and success rate of 93%.
منابع مشابه
Automatic Optic Disc Center and Boundary Detection in Color Fundus Images
Accurately detection of retinal landmarks, like optic disc, is an important step in the computer aided diagnosis frameworks. This paper presents an efficient method for automatic detection of the optic disc’s center and estimating its boundary. The center and initial diameter of optic disc are estimated by employing an ANN classifier. The ANN classifier employs visual features of vessels and th...
متن کاملMorphological Exudate Detection in Retinal Images using PCA-based Optic Disc Removal
Diabetic retinopathy lesion detection such as exudate in fundus image of retina can lead to early diagnosis of the disease. Retinal image includes dark areas such as main blood vessels and retinal tissue and also bright areas such as optic disk, optical fibers and lesions e.g. exudate. In this paper, a multistage algorithm for the detection of exudate in foreground is proposed. The algorithm se...
متن کاملMathematical Morphology based Optic Disc Detection in Retinal Fundus Images
Optic disc segmentation is a prerequisite in automatic analysis of retinal disease in color fundus images. In this paper, an algorithm for detection of optic disc (OD) in fundus images is presented. Mathematical morphology is used for segmentation of candidate optic disc region, followed by determining its center and approximating the circular optic disc boundary using circular model. Proposed ...
متن کاملA Simple and Fast Algorithm for the Automatic Localization of Optic Disc in Digital Fundus Retinal Images
Locating the Optic Disc (OD) is of critical importance in a retinal analysis system. This paper presents a fast algorithm for the automatic localization of OD in digital fundus retinal images. OD localization follows the Blood Vessel Detection (BVD). A morphology based approach is proposed for BVD. OD is localized by exploiting the property that it is a bright region and the density of blood ve...
متن کاملAutomatic Detection of Exudates and Microaneurysms from Non-Dilated Diabetic Retinopathy Retinal Images
Automatic Detection of Exudates and Microaneurysms from Non-Dilated Diabetic Retinopathy Retinal Images S.Sankaranarayanan, Dr.,M.Anto Bennet Department of Electronics and Communication Engineering, VELTECH Avadi-Chennai600062, Tamilnadu, India __________________________________________________________________________________________ Abstract: Exudates are one of the earliest and most prevalent...
متن کامل