Patent ID: 11957483
Assignee: FUJIFILM CORPORATION
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 10:
11. A method of operating an image processing device, the method comprising:
acquiring a medical image obtained from image pickup of an object to be observed; and
performing at least one of calculation of an index value related to a stage of ulcerative colitis, determination of the stage of the ulcerative colitis, or determination of whether or not the ulcerative colitis has remitted, on the basis of denseness of superficial blood vessels, intramucosal hemorrhage, and extramucosal hemorrhage obtained from the medical image;, calculating a frequency component-space distribution from the medical image;
extracting a first frequency characteristic region having a first frequency characteristic;
extracting a second frequency characteristic region having a second frequency characteristic having a frequency higher than a frequency of the first frequency characteristic;
extracting a third frequency characteristic region having a third frequency characteristic having a frequency higher than the frequency of the second frequency characteristic on the basis of the frequency component-space distribution;
detecting the denseness of the superficial blood vessels, the intramucosal hemorrhage, and the extramucosal hemorrhage on the basis of the first frequency characteristic region, the second frequency characteristic region, and the third frequency characteristic region; and
determining whether or not the ulcerative colitis has remitted on the basis of the detected denseness of the superficial blood vessels, the detected intramucosal hemorrhage, and the detected extramucosal hemorrhage.