FUNDUS IMAGE PROCESSING APPARATUS, FUNDUS IMAGE PROCESSING METHOD, AND RECORDING MEDIUM
First Claim
1. A fundus image processing apparatus that processes a fundus image of an examinee'"'"'s eye, the fundus image processing apparatus comprising:
- 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.
1 Assignment
0 Petitions
Accused Products
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.
-
Citations
13 Claims
-
1. A fundus image processing apparatus that processes a fundus image of an examinee'"'"'s eye, the fundus image processing apparatus comprising:
-
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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A non-transitory computer readable recording medium storing computer readable instructions, when executed by the processor, causing an 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 identified the 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.
-
-
12. A fundus image processing method for processing a fundus image of an examinee'"'"'s eye, the fundus image processing method comprising:
-
identifying the optic disc included in the fundus image; identifying a blood vessel included in the fundus image; calculating 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 calculating an arteriovenous diameter ratio in the fundus of the examinee'"'"'s eye based on the upper diameter ratio and the lower diameter ratio. - View Dependent Claims (13)
-
Specification