Fundus image processing apparatus, fundus image processing method, and recording medium
US9098743B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 28, 2014 |
| Grant date | Aug 4, 2015 |
| Priority date | — |
| Expiry date | Mar 28, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B3/0025
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A fundus image processing apparatus that processes a fundus image of an examinee's eye, the fundus image processing apparatus includes: a processor; and a memory storing computer readable instructions, when executed by the processor, causing the fundus image processing apparatus to: identify the optic disc included in the fundus image; identify a blood vessel included in the fundus image; calculate an upper diameter ratio which is a diameter ratio of those of the identified blood vessels that are positioned in a region above a height of the optic disc; calculate a lower diameter ratio which is a diameter ratio of those of the identified blood vessels that are positioned in a region under the height of the optic disc; and calculate an arteriovenous diameter ratio in the fundus of the examinee's eye based on the upper diameter ratio and the lower diameter ratio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.