Fundus analyzing appartus and fundus analyzing method
US8684528B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2010 |
| Grant date | Apr 1, 2014 |
| Priority date | — |
| Expiry date | Mar 6, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30041
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A fundus analyzing apparatus 1 performs OCT measurements of a fundus Ef and generates multiple tomographic images that each depict layer structures of the fundus Ef. Each formed tomographic image is stored in a storage 212. Based on the pixel values of the pixels of each tomographic image, the layer-region identifying part 233 identifies the layer region corresponding to the pigment layer of the retina. Based on the shape of the layer region, the curve calculator 234 obtains a convex standard curve in the direction of depth of the fundus Ef. Based on the layer region and the standard curve, a protrusion-region identifying part 235 identifies protrusion regions where the layer region protrudes in the opposite direction from the direction of depth of the fundus Ef. A morphological-information generating part 236 generates morphological information representing the morphology (number, size, distribution, etc.) of the protrusion regions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.