# US 2025/0095110 A1 · Endoscope processor, method for operating endoscope processor, and storage medium

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- Number: US 2025/0095110 A1
- Document ID: US20250095110A1
- Status: Published application
- Kind: A1
- Application number: 18/967,330
- Filed: 2024-12-03
- Published: 2025-03-20
- Earliest claimed: 2020-01-21
- Assignees: Olympus Corporation
- Applicants: Olympus Corporation
- Inventors: Masashi HIROTA
- Web page: https://patentgrep.com/patent/US20250095110A1

## CPC

- G06T 7/0012: {Biomedical image inspection}
- A61B 1/00045: {Display arrangement}
- A61B 1/045: Control thereof
- A61B 1/0638: {providing two or more wavelengths}
- G06T 5/50: using two or more images, e.g. averaging or subtraction
- G06T 2207/10024: Color image
- G06T 2207/10068: Endoscopic image
- G06T 2207/10152: Varying illumination
- G06T 2207/30101: Blood vessel; Artery; Vein; Vascular
- G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

An endoscope processor comprises a processor. The processor causes a light source to generate, as illumination light, light in a first wavelength band in which hemoglobin absorption is smaller than that in a green band and light in a second wavelength band which is different from the first wavelength band. The processor causes an endoscope to image a return light so as to output an image signal. The processor acquires a first image obtained by the light in the first wavelength band from the image signal and detects unevenness information on mucosa from the first image. The processor acquires a second image obtained by the light in the second wavelength band from the image signal and synthesizes the unevenness information with the second image so as to generate a display image in which an uneven region in the second image is emphasized.

## Claims

### Claim 1

An endoscope processor comprising:
one or more processors comprising hardware, wherein the one or more processors are configured to:
acquire a first image that is based on light in a first wavelength band belonging to a red band;
acquire a second image that is based on light in a second wavelength band belonging to a blue band;
extract unevenness information of a mucosa based on the first image;
generate an emphasized second image in which an uneven region in the second image is emphasized based on the unevenness information and the second image; and
generate an output image by inputting the emphasized second image to at least one of an R channel, a G channel and a B channel composing the output image.

### Claim 2 (depends on 1)

The endoscope processor according to claim 1,
wherein the one or more processors are configured to input the emphasized second image to the G channel of the output image.

### Claim 3 (depends on 2)

The endoscope processor according to claim 2,
wherein the one or more processors are configured to acquire a third image based on light in a third wavelength band belonging to a green band.

### Claim 4 (depends on 3)

The endoscope processor according to claim 3,
wherein the one or more processors are configured to:
input the emphasized second image to the G channel and the B channel of the output image, and
input the third image to the R channel of the output image.

### Claim 5 (depends on 1)

The endoscope processor according to claim 1,
wherein the one or more processors are configured to extract the unevenness information by calculating a high frequency component from the first image.

### Claim 6 (depends on 1)

The endoscope processor according to claim 1,
wherein the one or more processors configured to suppress a blood vessel figure in the second image.

### Claim 7 (depends on 6)

The endoscope processor according to claim 6,
wherein the one or more processors are configured to suppress the blood vessel figure by calculating a high frequency component of the second image including the blood vessel figure and subtracting the high frequency component from the second image.

### Claim 8

A method comprising:
acquiring a first image that is based on light in a first wavelength band belonging to a red band;
acquiring a second image that is based on light in a second wavelength band belonging to a blue band;
extracting unevenness information of a mucosa based on the first image;
generating an emphasized second image in which an uneven region in the second image is emphasized based on the unevenness information and the second image; and
generating an output image by inputting the emphasized second image to at least one of an R channel, a G channel and a B channel composing the output image.

### Claim 9

A non-transitory computer-readable storage medium storing instructions that, when executed, causes a computer to at least perform:
acquiring a first image that is based on light in a first wavelength band belonging to a red band;
acquiring a second image that is based on light in a second wavelength band belonging to a blue band;
extracting unevenness information of a mucosa based on the first image;
generating an emphasized second image in which an uneven region in the second image is emphasized based on the unevenness information and the second image; and
generating an output image by inputting the emphasized second image to at least one of an R channel, a G channel and a B channel composing the output image.