期刊
SPRINGERPLUS
卷 5, 期 -, 页码 -出版社
SPRINGER INT PUBL AG
DOI: 10.1186/s40064-016-3175-4
关键词
Computer aided diagnostics; Cup to disc ratio; Fundoscopy; Glaucoma detection; Machine learning
资金
- National ICT R&D fund, Pakistan
Glaucoma is a chronic disease often called silent thief of sight as it has no symptoms and if not detected at an early stage it may cause permanent blindness. Glaucoma progression precedes some structural changes in the retina which aid ophthalmologists to detect glaucoma at an early stage and stop its progression. Fundoscopy is among one of the biomedical imaging techniques to analyze the internal structure of retina. Our proposed technique provides a novel algorithm to detect glaucoma from digital fundus image using a hybrid feature set. This paper proposes a novel combination of structural (cup to disc ratio) and non-structural (texture and intensity) features to improve the accuracy of automated diagnosis of glaucoma. The proposed method introduces a suspect class in automated diagnosis in case of any conflict in decision from structural and non-structural features. The evaluation of proposed algorithm is performed using a local database containing fundus images from 100 patients. This system is designed to refer glaucoma cases from rural areas to specialists and the motivation behind introducing suspect class is to ensure high sensitivity of proposed system. The average sensitivity and specificity of proposed system are 100 and 87 % respectively.
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