Patent ID: 11915413
Assignee: OLYMPUS CORPORATION
Field: Medical technology (Instruments)
Classification: CPC G  A | IPC A  G

Claim 6:
7. An endoscope system comprising:
a light source apparatus configured to be able to emit light in a plurality of wavelength bands to irradiate an object with illumination light;
an image sensor configured to pick up an image of return light from the object on which the illumination light is irradiated; and
one or more processors, each comprising hardware, the one or more processors being configured to:
set, as illumination light for illuminating the object including a biological tissue present in a subject, first illumination light obtained by combining light in one or more wavelength bands selected out of the light in the plurality of wavelength bands and second illumination light obtained by combining light in one or more wavelength bands different from the first illumination light, selected out of the light in the plurality of wavelength bands;
control the light source apparatus to alternately irradiate, from the light source apparatus, the set first illumination light and second illumination light;
determine an analysis result related to presence or absence of an abnormal finding by analyzing a first image obtained by the image sensor when the first illumination light is irradiated and sets, based on the analysis result for the first image acquired by the image sensor when the first illumination light is irradiated, a combination of light in wavelength bands included in the second illumination light to be irradiated next;

wherein the one or more processors being configured to set, as the first illumination light, violet light, green light, and red light selected out of the light in the plurality of wavelength bands, and
analyze the first image to acquire, as the analysis result, a judgement result relating to whether an abnormal finding region having a predetermined color tone is included in the first image;
wherein, when a first judgement result indicating that a biological tissue corresponding to the abnormal finding is included in the first image is obtained, the one or more processors being configured to set, as the second illumination light, the violet light selected out of the light in the plurality of wavelength bands and, when a second judgement result indicating that the biological tissue corresponding to the abnormal finding is not included in the first image is obtained, the one or more processors being configured to set, as the second illumination light, blue light and the amber light selected out of the light in the plurality of wavelength bands.