Automatic segmentation of optic disk in retinal images
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- 作者：Sangita Bharkad <sup>sbharkad@yahoo.co.in" class="auth_mail" title="E-mail the corresponding authorsup>
- 关键词：Retinal images ; Diabetic retinopathy ; Optic disk ; Equiripple low pass FIR filter
- 刊名：Biomedical Signal Processing and Control
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：31
- 期：Complete
- 页码：483-498
- 全文大小：7860 K
文摘
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The equiripple low pass finite impulse response (FIR) filter is designed to eliminate the blood vessels.
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Fast and efficient threshold calculation procedure is elaborated to locate the OD in retinal image.
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A disk structuring element of radius half the size of the optic disk is found to be more effective for segmentation of the optic disk region.
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Seven metrics are used to assess the performance of proposed algorithm.
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Better performance is achieved on four standard databases over the methods reviewed in literature.