Edge detection of the optic disc in retinal images based on identification of a round shape
This paper presents a novel method for identification of the position of the optic disc in retinal images. The method is based on the preliminary detection of the main edgedetection of retinal image. The segmentation optic disc is estimated as a circular area. We searched for areas of optic disc usi...
| Main Authors: | , , , , |
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| Format: | Conference Paper |
| Published: |
ISCIT
2008
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/41825 |
| _version_ | 1848756250868711424 |
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| author | Chaichana, T. Sun, Zhonghua Tangjitkusolmun, S. Yoowattanna, S. Sangworasil, M. |
| author_facet | Chaichana, T. Sun, Zhonghua Tangjitkusolmun, S. Yoowattanna, S. Sangworasil, M. |
| author_sort | Chaichana, T. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | This paper presents a novel method for identification of the position of the optic disc in retinal images. The method is based on the preliminary detection of the main edgedetection of retinal image. The segmentation optic disc is estimated as a circular area. We searched for areas of optic disc using Hough transform which detected several straight lines and approximated them as a circular line. The position of optic discwas identified as the center of the circle. An evaluation of the proposed procedure was performed using a set of 40 images from the DRIVE database, containing images from both healthy (33) and diseased (7) subjects. The optic disc position was correctly identified in 39 out of 40 images and the efficiency was 97.5 percent. The results illustrate that the proposed method can be used for pathological analysis of retinal images. |
| first_indexed | 2025-11-14T09:09:13Z |
| format | Conference Paper |
| id | curtin-20.500.11937-41825 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:09:13Z |
| publishDate | 2008 |
| publisher | ISCIT |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-418252017-01-30T14:55:33Z Edge detection of the optic disc in retinal images based on identification of a round shape Chaichana, T. Sun, Zhonghua Tangjitkusolmun, S. Yoowattanna, S. Sangworasil, M. retinal images Hough transforms optic - disc Edge detection This paper presents a novel method for identification of the position of the optic disc in retinal images. The method is based on the preliminary detection of the main edgedetection of retinal image. The segmentation optic disc is estimated as a circular area. We searched for areas of optic disc using Hough transform which detected several straight lines and approximated them as a circular line. The position of optic discwas identified as the center of the circle. An evaluation of the proposed procedure was performed using a set of 40 images from the DRIVE database, containing images from both healthy (33) and diseased (7) subjects. The optic disc position was correctly identified in 39 out of 40 images and the efficiency was 97.5 percent. The results illustrate that the proposed method can be used for pathological analysis of retinal images. 2008 Conference Paper http://hdl.handle.net/20.500.11937/41825 ISCIT restricted |
| spellingShingle | retinal images Hough transforms optic - disc Edge detection Chaichana, T. Sun, Zhonghua Tangjitkusolmun, S. Yoowattanna, S. Sangworasil, M. Edge detection of the optic disc in retinal images based on identification of a round shape |
| title | Edge detection of the optic disc in retinal images based on identification of a round shape |
| title_full | Edge detection of the optic disc in retinal images based on identification of a round shape |
| title_fullStr | Edge detection of the optic disc in retinal images based on identification of a round shape |
| title_full_unstemmed | Edge detection of the optic disc in retinal images based on identification of a round shape |
| title_short | Edge detection of the optic disc in retinal images based on identification of a round shape |
| title_sort | edge detection of the optic disc in retinal images based on identification of a round shape |
| topic | retinal images Hough transforms optic - disc Edge detection |
| url | http://hdl.handle.net/20.500.11937/41825 |