Journal
PATTERN RECOGNITION
Volume 36, Issue 9, Pages 2093-2104Publisher
ELSEVIER SCI LTD
DOI: 10.1016/S0031-3203(03)00052-9
Keywords
optic disk; ASM; PCA; boundary detection; fundus image
Ask authors/readers for more resources
A new algorithm to automatically detect the boundary of optic disk in color fundus images is proposed. The optic disk is located by principal component analysis (PCA) based model, which is employed to initialize active shape model (ASM) to detect the disk boundary. ASM is modified with two aspects: one is the self-adjusting weight in the transformation from shape space to image space; the other is exclusion of outlying points in obtaining shape parameters. The modifications make the proposed algorithm more robust and converge faster than the original ASM method, especially in the case where the edge of optic disk is weak or occluded by blood vessels. (C) 2003 Pattern Recognition Society. Published by Elsevier Science Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available