Abstract: A light source device includes: light sources; a detector configured to detect light amounts; and a processor configured to: control the light sources to emit light beams by applying a pulse current with a pulse width larger than a predetermined pulse width to the light sources before the processor makes a shift to a strobe observation mode; set a pulse current value at which a ratio of the light amounts of the light beams emitted by the plurality of light sources becomes a predetermined ratio for the plurality of light sources based on a detection result detected by the detector under a state where the pulse current with the pulse width larger than the predetermined pulse width is applied to the plurality of light sources; and make the shift to the strobe observation mode while maintaining the pulse current value for realizing the predetermined ratio.

Abstract: A medical observation system includes: a microscope; a support including a first joint configured to hold the microscope such that the microscope is rotatable about a first axis parallel to an optical axis of the microscope; and a first arm configured to hold the first joint and extend in a direction different from a direction of the optical axis of the microscope; a light guide cable inserted in the support and configured to guide illumination light to the microscope; and a binder configured to bind the light guide cable, wherein at least a part of the light guide cable is arranged along the first axis in a first section, the light guide cable extends in a direction different from the first axis in a second section, and the binder is configured to bind the light guide cable in the second section.

Abstract: A medical image processing device includes circuitry configured to: divide a color space into at least two areas by a hue when an instruction signal for changing a brightness level of an image signal captured by a medical observation device is received, the color space being a color space indicating a signal value of the image signal and being determined by a luminance signal and a color difference signal; and perform different signal processing on the image signal for each divided area of the color space.

Abstract: A medical image processing device includes circuitry configured to: calculate relative information including relative positional relation of a pathologically diagnosed position in a subject with respect to an observation image of the subject captured by an imager, by using data on the observation image and pathological diagnosis information on the subject; and generate, based on the relative information, data on a displayed observation image resulting from addition of the pathological diagnosis information to the data on the observation image.

Abstract: A medical image processing device includes a processor including hardware. The processor is configured to: acquire a real image acquired by imaging of an observation target; execute cut-out processing of generating a cut-out image by cutting out at least a part of a three-dimensional image that is based on plural tomographic images having the observation target captured therein; execute shade and shadow processing of adding shade or a shadow to the cut-out image, based on illumination condition information indicating an illumination condition for the observation target in the imaging of the real image; and execute superimposition processing of generating a superimposed image by superimposing the cut-out image that has been subjected to the shade and shadow processing, on the real image.

Abstract: An image processing apparatus includes circuitry configured to: set a luminance adjustment mode to one of a first luminance adjustment mode that performs luminance adjustment with preset sensitivity and a second luminance adjustment mode that has sensitivity of the luminance adjustment lower than the sensitivity of the first luminance adjustment mode and suppresses luminance of a high luminance region based on an observation state of an imager configured to capture a target; and perform the luminance adjustment in the set luminance adjustment mode.

Abstract: A cooling device includes: a casing including an air intake port and an air exhaust port; a single heat releaser including a plurality of fins arranged in a gas flow path from the air intake port to the air exhaust port; a first heat diffuser arranged in the casing, connected to a first heat generation body generating heat at time of driving and the single heat releaser in a heat-transferable manner, and arranged at a position forming a part of the gas flow path passing through a space between the plurality of fins; and a second heat diffuser arranged in the casing, connected to a second heat generation body generating heat at time of driving and the single heat releaser in a heat-transferable manner, and arranged at a position forming a part of the gas flow path passing through the space between the plurality of fins.

Abstract: A medical light source device includes: a light emitting element; and a processor comprising hardware. The processor is configured to: determine a light source control value; and control the light emitting element to emit light with a light emission amount according to the light source control value by controlling at least one of a supply time of a current and a current value that are supplied to the light emitting element. The processor is further configured to: turn off the light emitting element in the readout period, when the light source control value decreases from a first value to a second value; and turn on the light emitting element in the readout period, when the light source control value increases from a third value, different from the second value, to a fourth value.

Abstract: A medical image processing apparatus includes: image signal acquiring circuitry configured to acquire: a first image signal generated by capturing light of a first wavelength band with an image sensor; and a second image signal generated by capturing light of a second wavelength band different from the first wavelength band with the image sensor, the first image signal and the second image signal being not subjected to the demosaic processing, and the image sensor including a color filter in which filter groups having spectroscopic properties different from each other are arranged in a specific form; a first signal path including a demosaic processor configured to execute the demosaic processing to the first image signal; and a second signal path diverged from the first signal path on a path former part from the demosaic processor, in which the demosaic processing is not executed to the second image signal.

Abstract: A medical observation apparatus includes: a camera configured to capture an observation object to output an imaging signal; a support configured to movably support the camera; and controller circuitry configured to control, when a normal observation mode with white light is switched to a special-light observation mode with special light, the support such that the camera is moved to a position so as to obtain a working distance that is set for the special-light observation mode and that is shorter than a working distance in the normal observation mode.

Abstract: An endoscope apparatus includes: a first endoscope that includes a first observation optical system; a second endoscope that includes a second observation optical system different from the first observation optical system, an exit pupil diameter of the second endoscope being larger than an exit pupil diameter of the first endoscope; an imaging device that is connected to one of the first and the second endoscopes, and includes an aperture diaphragm configured to pass light output from the connected one of the first and the second endoscopes, and an imaging unit configured to receive the light passed through the aperture diaphragm and convert the received light into an electric signal; and an image processing device configured to generate an image by using the electric signal generated by the imaging device. A minimum aperture diameter of the aperture diaphragm is larger than the exit pupil diameter of the first endoscope.

Abstract: A medical observation device includes an imaging unit configured to photograph an image of an operation site, and a holding unit configured to be connected with the imaging unit and have rotary shafts which are operable with at least six degrees of freedom. Among the rotary shafts, at least two shafts are active shafts whose driving is controlled based on states of the rotary shafts, and at least one shaft is a passive shaft which is rotated according to direct external manipulation accompanying contact.

Abstract: Provided is a medical display device capable of improving convenience for a medical worker. Provided is a medical display device including a display device capable of changing the degree of transparency of a display screen, a holding device that holds the display device, and a control device that controls the degree of transparency of the display screen and controls display on the display screen, wherein the display device is held by the holding device so as to be arranged between an operation part of a patient and a medical worker who performs medical practice for the patient.

Abstract: An image processing device includes: a memory; and a processor comprising hardware, wherein the processor is configured to: receive agent observation image information including information of a plurality of pixels obtained by capturing an image based on fluorescence from a subject administered with an agent that emits fluorescence upon being irradiated with excitation light in a predetermined wavelength band; amplify pixel values of the plurality of pixels by executing first gain processing on the agent observation image information; and reduce pixel values of pixels lower than a predetermined threshold by executing reduction processing on the agent observation image information after the first gain processing.

Abstract: A light source device includes: a first light source configured to emit first light including a white wavelength band or one or more wavelength bands of at least red, green, and blue; a second light source configured to emit second light including a specific wavelength band included in the first light; a first detector configured to detect an amount of the light of the specific wavelength band in the first light; a first optical member configured to multiplex light of a wavelength band different from the specific wavelength band in the first light, and the second light; and a processor configured to control the first light source based on a detection result of the first detector.

Abstract: A camera head for an endoscope includes: a casing grasped by a user and detachably connected to an insertion unit inserted into a subject, the insertion unit taking an object image from the subject; an optical element having translucency and configured to seal the casing by being provided in the casing; an imaging element provided in the casing and configured to capture the object image taken into the casing through the optical element; and a dew condensation forming unit provided in the casing and having a smaller thermal resistance value than the optical element, the dew condensation forming unit functioning as a transmission path of heat between inside and outside of the casing.

Abstract: A medical light source device includes: a first light emitting device configured to emit light; an optical member provided on an optical path of the light emitted from the first light emitting device, and configured to emit a part of the light emitted by the first light emitting device in a first direction and emit rest of the light in a second direction different from the first direction; an illumination optical system provided on the optical path of the light emitted in the first direction by the optical member and configured to guide incident light to be emitted to an outside; a detector disposed on the optical path of the light emitted in the second direction by the optical member and configured to detect an amount of incident light; and an optical path changer configured to change the optical path of the light emitted from the first light emitting device in accordance with the amount of light detected by the detector.

Abstract: A medical image processing apparatus includes: a receiver configured to obtain a captured image resulting from image capture of exciting light that is shed on an observed object and is provided by way of the observed object, and of fluorescent light that is excited by the exciting light and is provided from the observed object; and an image processor configured to perform image processing on the captured image. A light receiving surface of the image sensor is provided with a color filter. The captured image includes plural pieces of first component information about colors corresponding to the spectral characteristics of the plurality of filter groups, respectively. The image processor is configured to generate second component information by combining at least two pieces of first component information, and perform color correction processing that corrects the plural pieces of first component information based on the second component information.

Abstract: An image processing device includes: a memory; and a processor including hardware. The processor is configured to: execute, on first observed image information input externally and having predetermined number of pixels generated by capturing a subject, expansion processing to expand number of pixels up to a resolution of a display configured to display a display image having highest resolution among a plurality of displays being connectable to the image processing device, and generate and output second observed image information having number of pixels larger than the predetermined number of pixels; and execute reduction processing to reduce the number of pixels on the second observed image information, and generate and output third observed image information having number of pixels smaller than the predetermined number of pixels.

Abstract: A medical observation apparatus includes: a camera configured to capture an object image of an observation target; a support configured to support the camera so as to be rotatable about a plurality of mutually-different shafts; a memory configured to store the position of the camera; a brake configured to switch between: a permission state for permitting the camera to rotate about at least one of the plurality of shafts; and a restriction state for restricting the rotation; and a controller configured to perform a reproduction process for switching the brake to the permission state, and thereafter switching the brake from the permission state to the restriction state when the support is operated according to an external force applied to the support by an operator and the camera is located at the position of the camera stored in the memory.