Methods and systems for automatic location of optic structures in an image of an eye, and for automatic retina cup-to-disc ratio computation
US9684959B2 · kind B2 · utility
2Cited by
3References
20Claims
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Key dates
| Filing date | Aug 26, 2013 |
| Grant date | Jun 20, 2017 |
| Priority date | — |
| Expiry date | Aug 26, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2210/41
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method is proposed for automatically locating the optic disc or the optic cup in an image of the rear of an eye. A portion of the image containing the optic disc or optic cup is divided into sub-regions using a clustering algorithm. Biologically inspired features, and optionally other features, are obtained for each of the sub-regions. An adaptive model uses the features to generate data indicative of whether each sub-region is within or outside the optic disc or optic cup. The result is then smoothed, to form an estimate of the position of the optic disc or optic cup.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.