System and method for robust optic disk detection in retinal images using vessel structure and radon transform
US7524061B2 · kind B2 · utility
32Cited by
1References
20Claims
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Key dates
| Filing date | Oct 9, 2006 |
| Grant date | Apr 28, 2009 |
| Priority date | — |
| Expiry date | Jul 6, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30101
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for optic disk detection in retinal images, includes: extracting a vessel tree from a retinal image; locating an optic disk in the retinal image using the vessel tree; enhancing a contrast of the optic disk; removing vessels from the contrast enhanced optic disk; detecting a boundary of the optic disk with vessels removed by generating an edge map; projecting the edge map at a plurality of angles by using a radon transform; and estimating a radius and center of the optic disk using the projections.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.