Extraction of the optic disk boundary in digital fundus images

• Published in: Proceedings BMES/EMBS 1999, vol. 2, p. 1139
• Series: Cerebrovascular Diseases
• IEEE, 1999

The methods of active contours (snakes) and level sets were applied to images of the retina in order to locate the outer boundary of the optic disk. A gradient-vector-flow based active contour was used as it performed well over a large range of initial conditions. Images were pre-processed to lessen the influence of blood vessels on boundary detection. Both active contours and level set methods accurately located the correct boundary; level set methods were computationally more intensive.

Keywords: active ; contour ; LTS5

Reference

• EPFL-CONF-86620

Record created on 2006-06-14, modified on 2017-05-10