Abstract: An image processing device including an image processor, which acquires an endoscopic image, calculates biological information on the basis of the endoscopic image, sets a reference value of the biological information, generates a biological information image obtained by forming the biological information as an image so that a low value region equal to or lower than the reference value and the other region are distinguishable from each other, determines that the reference value is not appropriate in a case where a quasi-low value region in which the biological information is higher than the reference value and equal to or lower than a preset set value is present in the biological information image, and performs a notification regarding the reference value.

Abstract: An endoscope system includes a light source unit and a processor. The processor is configured to calculate a compensation amount using a correction image having a biological information obtained by imaging the observation object using the green light, correct a correlation to be used in the biological information observation mode using the compensation amount, calculate, according to the corrected correlation, biological information based on an image obtained by imaging the observation object using the second blue light, and display a white light image which is obtained by imaging the observation object using the white light, on a display unit in the correction mode.

Abstract: A region-of-interest detection unit detects the region of interest including the target of interest among an observation target, from the medical image. An overlooking determination unit determines whether a user overlooks the target of interest. A monitor includes a first screen which displays a video of the medical image and displays the region of interest, and a second screen which is a screen different from the first screen and displays the region of interest. An overlooking notification control unit performs a control of an overlooking occurrence notification in a case where it is determined that the target of interest is overlooked.

Abstract: The endoscope system (10) includes a light source unit (20) that emits correction illumination light to be used for the correction in the correction mode in which the biological information observation mode is corrected and emits white light at least once; a compensation amount calculation unit (76) that calculates a compensation amount of data to be used in the biological information observation mode using correction images obtained using the correction illumination light; a correction unit (77) that corrects the biological information observation mode by compensating for the data using the compensation amount; and a display control unit (66) that displays a white light image, which is obtained by imaging the observation object using the white light, on a display unit in the correction mode.

Abstract: An endoscope obtains a plurality of spectral images from the image pickup of an object to be observed illuminated on the basis of illumination light. A special processing section calculates oxygen saturation of the object to be observed on the basis of the plurality of spectral images, first correction parameters that are used to correct differences in the spectral characteristics of the respective semiconductor light sources, and white balance correction data.

Abstract: An oxygen saturation calculating unit calculates, based on an observation image, an oxygen saturation included in the observation target. A reliability calculating unit calculates, based on the observation image, reliability regarding the biological information. A reference value processing unit sets, for a measurement value indicative of the biological information of a measurement target in the observation target, a reference value serving as a reference for the biological information by using the reliability. A difference image generating unit calculates a difference value between the measurement value and the reference value and generates, based on the difference value, a difference image.

Abstract: A processor device that is an image processing apparatus functions as an image obtaining unit that obtains an endoscopic image obtained by capturing an image of a photographic subject, a biological information calculation unit that calculates biological information concerning the photographic subject by using the endoscopic image or a display image generated by using the endoscopic image, and a texture processing unit that superimposes a plurality of textures representing the biological information on the endoscopic image or the display image and shows a boundary between adjacent textures.

Abstract: An oxygen saturation calculating unit calculates, based on an observation image, an oxygen saturation included in the observation target. A reliability calculating unit calculates, based on the observation image, reliability regarding the biological information. A reference value processing unit sets, for a measurement value indicative of the biological information of a measurement target in the observation target, a reference value serving as a reference for the biological information by using the reliability. A difference image generating unit calculates a difference value between the measurement value and the reference value and generates, based on the difference value, a difference image.

Abstract: A medical image processing apparatus includes: a medical image acquisition unit that acquires a medical image; a medical image analysis result acquisition unit that acquires an analysis result of the medical image; a display unit that displays the medical image and the analysis result; a correspondence relationship setting unit that sets a correspondence relationship between a first analysis result of a first medical image and a second analysis result of a second medical image having different imaging conditions from the first medical image; and a display control unit that sets a display form in case of displaying the second analysis result on the first medical image using the set correspondence relationship or sets a display form in case of displaying the first analysis result on the second medical image using the set correspondence relationship.

Abstract: A region-of-interest detection unit detects the region of interest including the target of interest among an observation target, from the medical image. An overlooking determination unit determines whether a user overlooks the target of interest. A monitor includes a first screen which displays a video of the medical image and displays the region of interest, and a second screen which is a screen different from the first screen and displays the region of interest. An overlooking notification control unit performs a control of an overlooking occurrence notification in a case where it is determined that the target of interest is overlooked.

Abstract: A medical image processing apparatus includes: a medical image acquisition unit that acquires a medical image; a medical image analysis result acquisition unit that acquires an analysis result of the medical image; a display unit that displays the medical image and the analysis result; a correspondence relationship setting unit that sets a correspondence relationship between a first analysis result of a first medical image and a second analysis result of a second medical image having different imaging conditions from the first medical image; and a display control unit that sets a display form in case of displaying the second analysis result on the first medical image using the set correspondence relationship or sets a display form in case of displaying the first analysis result on the second medical image using the set correspondence relationship.

Abstract: The endoscope system (10) includes a light source unit (20) that emits correction illumination light to be used for the correction in the correction mode in which the biological information observation mode is corrected and emits white light at least once; a compensation amount calculation unit (76) that calculates a compensation amount of data to be used in the biological information observation mode using correction images obtained using the correction illumination light; a correction unit (77) that corrects the biological information observation mode by compensating for the data using the compensation amount; and a display control unit (66) that displays a white light image, which is obtained by imaging the observation object using the white light, on a display unit in the correction mode.

Abstract: An endoscope system includes: a phosphor and first and second blue laser light sources that emit first white light and second white light having different emission spectrums; a sensor that images an observation target under illumination with the first white light and outputs a first image signal and images the observation target under illumination with the second white light and outputs a second image signal; a movement amount calculation unit that calculates the movement amount of the observation target based on the first or second image signal; and an oxygen saturation calculation unit that calculates the oxygen saturation based on the movement amount in at least one of a first mode, in which the oxygen saturation is calculated using the first and second image signals, and a second mode, in which the oxygen saturation is calculated using the first image signal.

Abstract: The endoscope system includes an image signal acquisition processing unit and an image generation unit that acquire a first still image and a video or a second still image before and after acquisition of the first still image based on an image signal obtained by imaging an observation target using an image sensor, an association unit that associates the first still image with the video or associates the first still image with the second still image, and a storage unit that stores the first still image and the video associated with each other or stores the first still image and the second still image associated with each other.

Abstract: There are provided an endoscope system, a processor device, and an operation method of an endoscope system that can calculate an accurate oxygen saturation by reducing artifacts. An endoscope system includes: an oxygen saturation correction unit that calculates the amount of change in oxygen saturation in the latest second period with respect to the oxygen saturation in the past first period and that maintains a value of the oxygen saturation in the second period in a case in which the amount of change is less than a threshold value and corrects the oxygen saturation in the second period to a value obtained as a result of setting the amount of change to the threshold value in a case in which the amount of change is equal to or greater than the threshold value; and an oxygen saturation image generation unit that generates an oxygen saturation image using the oxygen saturation in the second period.

Abstract: The endoscope system includes an image signal acquisition processing unit and an image generation unit that acquire a first still image and a video or a second still image before and after acquisition of the first still image based on an image signal obtained by imaging an observation target using an image sensor, an association unit that associates the first still image with the video or associates the first still image with the second still image, and a storage unit that stores the first still image and the video associated with each other or stores the first still image and the second still image associated with each other.

Abstract: An endoscope system includes: a phosphor and first and second blue laser light sources that emit first white light and second white light having different emission spectrums; a sensor that images an observation target under illumination with the first white light and outputs a first image signal and images the observation target under illumination with the second white light and outputs a second image signal; a movement amount calculation unit that calculates the movement amount of the observation target based on the first or second image signal; and an oxygen saturation calculation unit that calculates the oxygen saturation based on the movement amount in at least one of a first mode, in which the oxygen saturation is calculated using the first and second image signals, and a second mode, in which the oxygen saturation is calculated using the first image signal.

Abstract: A relief printing plate manufacturing method includes: generating binary image data based on multivalued image data representing a printing image; generating, from the binary image data, target stereoscopic shape data; calculating, based on the target stereoscopic shape data, exposure amount data; providing a predetermined exposure amount to an outside image adjacent pixel in a range of predetermined pixels adjacent to an ON pixel; and applying laser light to an area of OFF pixels based on the exposure amount data to engrave a portion outside of an area, and applying laser light to the outside image adjacent pixel based on the predetermined exposure amount to form a relief having a projecting shape with a corner part of a flange part of a top face of the relief at least partially chamfered.

Abstract: To display a brownish area distinguishably from residuum, a B image signal having a blue narrow-band signal corresponding to blue narrow-band light and a G image signal, out of a color image signal obtained by an endoscope, are inputted to a processor device. The B image signal is assigned as a B display image signal. The B display image signal and the G image signal are weighted independently, and the sum of the weighted B display image signal and the weighted G image signal is assigned as a G display image signal. The G image signal is assigned as an R display image signal. Based on the RGB display image signals, a special light image is displayed on a monitor. In the special light image, the residuum or residual fluid is displayed in a yellowish color, and structure including blood vessels and a lesion is visible translucently under the residuum.

Abstract: Height conversion matrices for determining heights of halftone dot convexities are generated based on raster image data. Based on the height conversion matrices and binary image data, amount-of-exposure data are generated in order to produce a printing relief plate in which the halftone dot convexities have heights at a plurality of height levels in a screen tint region, which is formed based on the binary image data. Based on the amount-of-exposure data, a printing plate material is exposed to a light beam, thereby producing a printing relief plate.