Abstract: An endoscope apparatus has an image pickup device having a first pixel having a sensitivity in a predetermined wavelength band, and a second pixel having a sensitivity in a wavelength band including a part of the predetermined wavelength band, a light source section configured to generate a light for irradiating a subject, an intensity of which reaches a peak in the part of the predetermined wavelength band to which the second pixel has a sensitivity, and an addition section configured to generate an addition signal obtained by adding a first image pickup signal obtained by receiving a return light from the subject at a time of the subject being irradiated in the first pixel, and a second image pickup signal obtained by receiving a return light from the subject in the second pixel.

Abstract: The image processing device includes: a first image acquisition section that acquires a first image, the first image being an image that includes an object image including information within a wavelength band of white light; a second image acquisition section that acquires a second image, the second image being an image that includes an object image including information within a specific wavelength band; a candidate attention area detection section that detects a candidate attention area based on a feature quantity of each pixel within the second image; a reliability calculation section that calculates reliability that indicates a likelihood that the candidate attention area is the attention area; and a display mode setting section that performs a display mode setting process that sets a display mode of an output image corresponding to the reliability calculated by the reliability calculation section.

Abstract: The image processing device includes: a first image acquisition section that acquires a first image, the first image being an image that includes an object image including information within a wavelength band of white light; a second image acquisition section that acquires a second image, the second image being an image that includes an object image including information within a specific wavelength band; a candidate attention area detection section that detects a candidate attention area based on a feature quantity of each pixel within the second image, the candidate attention area being a candidate for an attention area; a reliability calculation section that calculates reliability that indicates a likelihood that the candidate attention area is the attention area; and a display mode setting section that performs a display mode setting process that sets a display mode of an output image corresponding to the reliability calculated by the reliability calculation section.

Abstract: An endoscope system includes an image acquisition section, an attention area setting section, and a scaling section. The image acquisition section acquires a captured image that includes an object image. The attention area setting section sets an attention area within the captured image based on information from the endoscope system. The scaling section performs a local scaling process that relatively enlarges the attention area as compared with another area.

Abstract: An endoscope apparatus includes: a light source that emits white light or narrow-band light; an image sensor having pixels; a color filter including a filter unit having a plurality of filters in which the number of filters for passing green wavelength band light and the number of filters for passing blue wavelength band light satisfy predetermined conditions; a first gain adjustment unit that adjusts a gain of an electric signal generated by the image sensor; a demosaicing processing unit that generates an image signal of a color component passing through a filter based on the electric signal whose gain has been adjusted by the first gain adjustment unit; a color conversion processing unit that performs color separation on an image signal when the light source unit emits the white light; and a second gain adjustment unit that adjusts a gain of each image signal subjected to the color conversion processing.

Abstract: An endoscope apparatus includes a processor including hardware. The processor is configured to implement an image acquisition process that acquires a plurality of in vivo images; an in-focus evaluation value calculation process that calculates an in-focus evaluation value that represents a degree of in-focus corresponding to each of the plurality of in vivo images; a focus control process that controls a focus operation of an imaging optics by performing a control process that switches a position of a focus adjustment lens included in the imaging optics between a plurality of discrete positions based on the in-focus evaluation value; and a freeze image setting process that selects at least one in vivo image from the plurality of in vivo images based on the degree of in-focus represented by the in-focus evaluation value, and sets the selected at least one in vivo image to be a freeze image.

Abstract: An endoscope system includes an imaging section that captures an object via an optical system and an image sensor, an observation state determination section that determines the observation state of the object captured by the imaging section, and an aperture control section that controls the state of an aperture included in the optical system based on the observation state, the aperture control section controlling the state of the aperture so that the resolution determined by the diffraction limit due to the aperture is equal to or higher than a resolution determined by the image sensor when the observation state determination section has determined that the observation state is a first observation state, and stopping down the aperture as compared with the state of the aperture in the first observation state when the observation state determination section has determined that the observation state is a second observation state.

Abstract: An image processing device includes an image acquisition section, a distance information acquisition section, a motion detection section that detects motion information about a local motion of an object, a classification section that performs a classification process that classifies a structure of the object based on a distance information, and an enhancement processing section that. excludes a pixel or an area within the captured image for which it has been determined that the motion amount of the object is larger than a threshold value based on the motion information from the target of the enhancement process based on a classification result, or decreases the enhancement level of the enhancement process applied to the pixel or the area within the captured image as the motion amount of the object within the pixel or the area increases based on the motion information.

Abstract: An image processing device includes a normal light image acquisition section that acquires a normal light image that includes an object image and includes information within a wavelength band of white light, a special light image acquisition section that acquires a special light image that includes an object image and includes information within a specific wavelength band, a correction section that performs a correction process on the special light image, and a blending section that performs a blending process that blends the normal light image and a corrected special light image that is the special light image corrected by the correction section. The blending section blends a component G of the normal light image and a component G of the corrected special light image, and blends a component B of the normal light image and a component B of the corrected special light image.

Abstract: An endoscope apparatus includes an image acquisition section that acquires images in time series, a coefficient calculation section that calculates a correction coefficient for correcting blurring in a depth direction that is a direction along an optical axis of an imaging section, and a depth-direction blurring correction section that performs a depth-direction blurring correction process that corrects blurring in the depth direction on the images acquired in time series based on the correction coefficient.

Abstract: An image processing device includes an image acquisition section that acquires a captured image that includes an image of an object, the captured image being an image captured by an imaging section, a distance information acquisition section that acquires distance information based on the distance from the imaging section to the object when the imaging section captured the captured image, an irregularity information acquisition section that acquires extracted irregularity information from the acquired distance information, the extracted irregularity information being information that represents irregular parts extracted from the object, and an enhancement section that performs an enhancement process on an enhancement target, the enhancement target being an irregular part that is represented by the extracted irregularity information and agrees with characteristics specified by known characteristic information, the known characteristic information being information that represents known characteristics relating

Abstract: An image processing device includes a normal light image acquisition section that acquires a normal light image that includes an object image and includes information within a wavelength band of white light, a special light image acquisition section that acquires a special light image that includes an object image and includes information within a specific wavelength band, a correction section that performs a correction process on the special light image, and a blending section that performs a blending process that blends the normal light image and a corrected special light image that is the special light image corrected by the correction section. The blending section blends a component G of the normal light image and a component G of the corrected special light image, and blends a component B of the normal light image and a component B of the corrected special light image.

Abstract: An image processing device includes an image acquisition section that acquires an image that has been acquired by imaging a tissue using an endoscope apparatus, an in vivo position identification information acquisition section that acquires in vivo position identification information that specifies an in vivo position of the endoscope apparatus when the image has been acquired, a in vivo model acquisition section that acquires a in vivo model that is a model of the tissue, an on-model position determination section that specifies an on-model position that corresponds to the position specified by the in vivo position identification information on the acquired in vivo model, and a linking section that links information about the acquired image to the specified on-model position.

Abstract: An endoscope system includes an image acquisition section, an attention area setting section, and a dimming control section. The image acquisition section acquires a captured image that includes an object image. The attention area setting section sets an attention area within the captured image based on information from the endoscope system. The dimming control section performs a dimming control process that controls the intensity of illumination light based on the attention area set by the attention area setting section.

Abstract: An endoscope system includes an image acquisition section, an attention area setting section, and a scaling section. The image acquisition section acquires a captured image that includes an object image. The attention area setting section sets an attention area within the captured image based on information from the endoscope system. The scaling section performs a local scaling process that relatively enlarges the attention area as compared with another area.

Abstract: A reflected light image of an observed region and a fluorescent light image of the observed region based on fluorescent light that is generated from the observed region are acquired. The variation component of the acquired latest reflected light image is detected on the basis of the latest reflected light image and an old reflected light image. A correction process is performed on the luminance value of the latest reflected light image taking the variation component into account. A normalization process is performed on the luminance value of the fluorescent light image using the luminance value of the reflected light image after the correction process, which sharpens the image of the region in the observed region from which the fluorescent light is generated.

Abstract: The image processing device includes: a first image acquisition section that acquires a first image, the first image being an image that includes an object image including information within a wavelength band of white light; a second image acquisition section that acquires a second image, the second image being an image that includes an object image including information within a specific wavelength band; a candidate attention area detection section that detects a candidate attention area based on a feature quantity of each pixel within the second image; a reliability calculation section that calculates reliability that indicates a likelihood that the candidate attention area is the attention area; and a display mode setting section that performs a display mode setting process that sets a display mode of an output image corresponding to the reliability calculated by the reliability calculation section.

Abstract: The image processing device includes: a first image acquisition section that acquires a first image, the first image being an image that includes an object image including information within a wavelength band of white light; a second image acquisition section that acquires a second image, the second image being an image that includes an object image including information within a specific wavelength band; a candidate attention area detection section that detects a candidate attention area based on a feature quantity of each pixel within the second image, the candidate attention area being a candidate for an attention area; a reliability calculation section that calculates reliability that indicates a likelihood that the candidate attention area is the attention area; and a display mode setting section that performs a display mode setting process that sets a display mode of an output image corresponding to the reliability calculated by the reliability calculation section.

Abstract: A control device includes an image acquisition section and a focus control section. The image acquisition section acquires an image captured by an imaging section. The focus control section performs a focus control process that focuses the imaging section on an object based on the acquired image. The focus control section performs the focus control process based on an image for which occurrence of a bright spot is suppressed.

Abstract: An endoscope apparatus includes an image acquisition section that acquires images in time series, a coefficient calculation section that calculates a correction coefficient for correcting blurring in a depth direction that is a direction along an optical axis of an imaging section, and a depth-direction blurring correction section that performs a depth-direction blurring correction process that corrects blurring in the depth direction on the images acquired in time series based on the correction coefficient.