Patent ID: 11957316
Assignee: FUJIFILM CORPORATION
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 0:
1. An endoscope apparatus comprising:
an illumination light source unit that emits illumination light used to illuminate a subject;
an auxiliary measurement light source unit that emits auxiliary measurement light;
an image pickup optical system, wherein an optical axis of the auxiliary measurement light crosses an optical axis of the image pickup optical system; and
one or more processors configured to:
acquire a picked-up image that is obtained from image pickup of the subject illuminated with both the illumination light and the auxiliary measurement light and includes at least first and second spectral images having different wavelength components, wherein the first and second spectral images include a spot which is a component of the auxiliary measurement light;
obtain a first arithmetic image from which a first noise component hindering detection of a position of the spot is removed by first arithmetic processing based on the first and second spectral images;
detect the position of the spot from the first arithmetic image; and
display a specific image in which a measurement marker set differently depending on an observation distance indicated by the position of the spot is superimposed on the picked-up image,

wherein in a case where the one or more processors perform first binarization processing of obtaining a binarized first spectral image by binarizing the first spectral image and second binarization processing of obtaining a binarized second spectral image by binarizing the second spectral image, the one or more processors perform first difference processing of the binarized first spectral image and the binarized second spectral image as the first arithmetic processing, and
wherein the first spectral image is a red image and the second spectral image is a green image, and the first noise component is a high-brightness component of a red component of the illumination light.