Fundus image processing device and non-transitory computer-readable storage medium storing computer-readable instructions
AssigneesNational University Corporation Hokkaido University, Nidek Co., Ltd.
InventorsMichiyuki Saito, Kousuke Noda, Kanae Fukutsu, Susumu Ishida, Ryosuke Shiba, Yoshiki Kumagai
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Abstract
A processor of a fundus image processing device acquires a fundus image 50 photographed by a fundus image photographing device. The processor acquires blood vessel images 60A and 60B that indicate at least one of an arteriole and a venule in the fundus image 50 by inputting the fundus image 50 into a mathematical model trained by a machine learning algorithm. The processor acquires a blood vessel area that is an area of at least one of the arteriole and the venule in the whole of the blood vessel images 60A and 60B.
Claims4
A non-transitory computer-readable storage medium storing computer-readable instructions that, when executed by a processor of a fundus image processing device that processes a fundus image of a subject eye, cause the fundus image processing device to perform the steps of:
- (a) acquiring the fundus image photographed by a fundus image photographing device;
- (b) acquiring a blood vessel image that indicates at least one of an arteriole and a venule in the fundus image by inputting the fundus image into a mathematical model trained by a machine learning algorithm;
- (c) acquiring a total blood vessel area that is an area of at least one of the arteriole and the venule of the entire blood vessel image acquired in the step of (b), the total blood vessel area being a number of pixels that form the blood vessel in the entire blood vessel image;
- and
- (d) outputting an index that indicates at least one of an estimated age of a subject for which the fundus image is photographed, a degree of hypertension, and a degree of arteriosclerosis, based on the total blood vessel area acquired in the step of (c).
Dependencies are inferred from the claim text.