Probabilistic retinal vessel segmentation

Chang-Hua Wu; Gady Agam

doi:10.1117/12.707391

3 March 2007 Probabilistic retinal vessel segmentation

Chang-Hua Wu, Gady Agam

Proceedings Volume 6512, Medical Imaging 2007: Image Processing; 651213 (2007) https://doi.org/10.1117/12.707391
Event: Medical Imaging, 2007, San Diego, CA, United States

Abstract

Optic fundus assessment is widely used for diagnosing vascular and non-vascular pathology. Inspection of the retinal vasculature may reveal hypertension, diabetes, arteriosclerosis, cardiovascular disease and stroke. Due to various imaging conditions retinal images may be degraded. Consequently, the enhancement of such images and vessels in them is an important task with direct clinical applications. We propose a novel technique for vessel enhancement in retinal images that is capable of enhancing vessel junctions in addition to linear vessel segments. This is an extension of vessel filters we have previously developed for vessel enhancement in thoracic CT scans. The proposed approach is based on probabilistic models which can discern vessels and junctions. Evaluation shows the proposed filter is better than several known techniques and is comparable to the state of the art when evaluated on a standard dataset. A ridge-based vessel tracking process is applied on the enhanced image to demonstrate the effectiveness of the enhancement filter.

Citation Download Citation

Chang-Hua Wu and Gady Agam "Probabilistic retinal vessel segmentation", Proc. SPIE 6512, Medical Imaging 2007: Image Processing, 651213 (3 March 2007); https://doi.org/10.1117/12.707391

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