Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/12166
Title: A modified atched filter with double-sided thresholding for screening proliferative diabetic retinopathy
Authors: Zhang, L 
Li, Q
You, J 
Zhang, D 
Keywords: Matched filter
Proliferative diabetic retinopathy (PDR)
Retinal image
Vessel extraction
Issue Date: 2009
Publisher: Institute of Electrical and Electronics Engineers
Source: IEEE transactions on information technology in biomedicine, 2009, v. 13, no. 4, p. 528-534 How to cite?
Journal: IEEE transactions on information technology in biomedicine 
Abstract: The early diagnosis of proliferative diabetic retinopathy (PDR), a common complication of diabetes that damages the retina, is crucial to the protection of the vision of diabetes sufferers. The onset of PDR is signaled by the appearance of neovascular net. Such neovascular nets might be identified using retinal vessel extraction techniques. The commonly used matched filter methods often produce false positive detections of neovascular nets due to their proneness to detect nonline edges as well as lines. In this paper, we propose a modified matched filter for retinal vessel extraction that applies a local vessel cross-section analysis using double-sided thresholding to reduce false responses to nonline edges. Our proposed modified matched filters demonstrated higher true positive rate and lesser false detection than existing matched-filter-based schemes in vessel extraction.
URI: http://hdl.handle.net/10397/12166
ISSN: 1089-7771
DOI: 10.1109/TITB.2008.2007201
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