Abstract: A filter device includes: delay units serially connected to delay an input signal and output a delayed signal; multiplication units multiplying the delayed signal by a filter coefficient based on a predetermined value and a multiplying factor adjustment value; a coefficient adjustment unit that, when a multiplication result obtained by multiplying the predetermined value by the multiplying factor adjustment value exceeds a maximum value of a filter-coefficient representation range, divides the multiplication result exceeding the maximum value by the maximum value, and outputs a quotient of division as a coefficient adjustment value; a signal conversion unit outputting a signal obtained by adding after-filter-coefficient-multiplication signals outputted by the multiplication units and an adjusted signal obtained by adjusting a corresponding delayed signal using the coefficient adjustment value; and a division unit generating an output signal by dividing the signal outputted by the signal conversion unit by the

Abstract: A filter device includes: delay units serially connected to delay an input signal and output a delayed signal; multiplication units multiplying the delayed signal by a filter coefficient based on a predetermined value and a multiplying factor adjustment value; a coefficient adjustment unit that, when a multiplication result obtained by multiplying the predetermined value by the multiplying factor adjustment value exceeds a maximum value of a filter-coefficient representation range, divides the multiplication result exceeding the maximum value by the maximum value, and outputs a quotient of division as a coefficient adjustment value; a signal conversion unit outputting a signal obtained by adding after-filter-coefficient-multiplication signals outputted by the multiplication units and an adjusted signal obtained by adjusting a corresponding delayed signal using the coefficient adjustment value; and a division unit generating an output signal by dividing the signal outputted by the signal conversion unit by the

Abstract: A plug of a connector for connecting an optical waveguide provided in a medical instrument includes: a coupling portion configured to be inserted into a receptacle of the connector; a connecting surface formed at an end in a first direction in which the coupling portion is inserted into the receptacle; an opening portion provided on the connecting surface, the opening portion having a recessed shape; and a holding portion configured to hold the optical waveguide such that an end face of the optical waveguide is directed in the first direction. The holding portion and the optical waveguide are disposed on a side of a second direction with respect to the connecting surface, the second direction being opposite to the first direction.

Abstract: A scanning endoscope system includes an optical fiber for guiding illumination light, an actuator configured to displace an irradiation position of the illumination light emitted through the optical fiber, and a controller. The controller generates a driving signal having periodicity for driving the actuator and supplies the driving signal via a predetermined signal line connected to the actuator, determines presence or absence of occurrence of a trouble in the predetermined signal line based either on a current value of an electric current flowing in the predetermined signal line at predetermined timing in a period for one cycle of the driving signal or a voltage value of a voltage applied to the actuator at the predetermined timing, and obtains a determination result that a trouble has occurred in the predetermined signal line when detecting that the current value continuously deviates predetermined times from a predetermined threshold range.

Abstract: An optical scanning observation system includes: a light-guide that guides illumination light; an actuator that causes the end portion of the light-guide to oscillate, to thereby be capable of shifting an irradiation position of the illumination light emitted to an object; a light detection section that generates a light detection signal based on return light from the object, and output the generated light detection signal; an error angle acquisition section that acquires an error angle indicating a degree of deviation of the irradiation position of the illumination light; and an image generation section that generates a rotated image by rotating pixel information acquired by converting the light detection signal outputted from the light detection section by an angle acquired by subtracting the error angle from a desired angle of rotation.

Abstract: A scanning endoscope apparatus includes: a light source unit; an illumination fiber inserted inside an insertion portion of an endoscope, the illumination fiber being configured to guide illuminating light from a proximal end to a distal end; an actuator configured to drive the distal end of the optical fiber so that the illuminating light outputted from the illumination fiber is scanned on a subject; a memory configured to store correlation coefficient information on a correlation coefficient between a drive signal for driving the actuator and a displacement amount of the actuator; and a controller, and the controller detects a current of the drive signal for driving the actuator and corrects the drive signal for driving the actuator based on the correlation coefficient information and a value of the detected current so that the displacement amount of the actuator becomes a predetermined value.

Abstract: An image pickup apparatus includes a light source apparatus emitting a first or a second illumination light to an object, an image pickup device acquiring an image of the object, and a CPU switching between a first mode where the image is picked up with the first illumination light and a second mode where the image is picked up with the second illumination light, being able to set at least one of a processing parameter for processing an image and a brightness control parameter before switching the illumination light to the illumination light corresponding to the mode or after switching to the corresponding illumination light is completed, and controlling whether the processing parameter is set before switching of the illumination light is started or after switching is completed according to the mode switching from the first to the second mode or from the second to the first mode.

Abstract: An endoscope processor is an endoscope processor used in combination with a scanning type endoscope capable of scanning an object by displacing an irradiation position of illumination light to be radiated to the object, and includes: an image generation portion configured to respectively generate a plurality of color images according to return light of the illumination light radiated to the object; a correction processing portion configured to perform processing of acquiring a correction magnification for correcting a scanning width or a view angle of the scanning type endoscope in accordance with a reference value; and an image correction portion configured to perform magnification chromatic aberration correction processing for correcting a magnification chromatic aberration among the plurality of color images uniformly scaled according to the correction magnification.

Abstract: An image processing apparatus for scanning endoscope includes: a number-of-interpolations determination section that receives detection signals from a detector for sequentially sampling return light from a subject and determines a number of detection signals used in an interpolation process by an interpolation section based on distances between a coordinate position of a predetermined lattice point in pixel data of a raster scan system and sampling coordinate positions of the detection signals around the coordinate position of the predetermined lattice point; and the interpolation section that generates pixel data of the predetermined lattice point by using signals of the sampling coordinate positions, wherein a number of the signals is equal to the number of detection signals determined by the number-of-interpolations determination section near the sampling coordinate position corresponding to the coordinate position of the predetermined lattice point.

Abstract: An image pickup apparatus includes an endoscope configured to have an image pickup section in which a plurality of pixels are provided, and a storage section configured to store scope individual information, a binning processing section configured to split an image into a plurality of regions so that one region includes a plurality of pixel signals, and add up the pixel signals for each region to obtain a binning pixel signal, a binning brightness detection section configured to detect brightness of the region, a blend processing section configured to set a weight in the region on the basis of the brightness, and weight and composite the pixel signals and the binning pixel signal to generate a composite image, and a control section configured to control the binning processing section in accordance with the scope individual information.

Abstract: A scanning endoscope apparatus includes: a light source unit; an illumination fiber inserted inside an insertion portion of an endoscope, the illumination fiber being configured to guide illuminating light from a proximal end to a distal end; an actuator configured to drive the distal end of the optical fiber so that the illuminating light outputted from the illumination fiber is scanned on a subject; a memory configured to store correlation coefficient information on a correlation coefficient between a drive signal for driving the actuator and a displacement amount of the actuator; and a controller, and the controller detects a current of the drive signal for driving the actuator and corrects the drive signal for driving the actuator based on the correlation coefficient information and a value of the detected current so that the displacement amount of the actuator becomes a predetermined value.

Abstract: An endoscope apparatus has an illuminating unit that performs illumination with a first light once and performs illumination with a second light a plurality of times within a predetermined time period, an image pickup unit that outputs a first image pickup signal based on the illumination with the first light and a second image pickup signal based on the illumination with the second light, a clipping processing unit that clips the first and the second image pickup signals, a brightness calculating unit that calculates a first brightness, a composite ratio calculating unit that calculates a composite ratio according to a brightness target value and the first brightness, a composite processing unit that combines the first and the second image pickup signals according to the composite ratio, and a setting unit that sets a clip level according to the composite ratio.

Abstract: An image pickup apparatus includes an endoscope configured to have an image pickup section in which a plurality of pixels are provided, and a storage section configured to store scope individual information, a binning processing section configured to split an image into a plurality of regions so that one region includes a plurality of pixel signals, and add up the pixel signals for each region to obtain a binning pixel signal, a binning brightness detection section configured to detect brightness of the region, a blend processing section configured to set a weight in the region on the basis of the brightness, and weight and composite the pixel signals and the binning pixel signal to generate a composite image, and a control section configured to control the binning processing section in accordance with the scope individual information.

Abstract: An image processing apparatus for scanning endoscope includes: a number-of-interpolations determination section that receives detection signals from a detector for sequentially sampling return light from a subject and determines a number of detection signals used in an interpolation process by an interpolation section based on distances between a coordinate position of a predetermined lattice point in pixel data of a raster scan system and sampling coordinate positions of the detection signals around the coordinate position of the predetermined lattice point; and the interpolation section that generates pixel data of the predetermined lattice point by using signals of the sampling coordinate positions, wherein a number of the signals is equal to the number of detection signals determined by the number-of-interpolations determination section near the sampling coordinate position corresponding to the coordinate position of the predetermined lattice point.

Abstract: An image pickup apparatus includes a light source apparatus emitting a first or a second illumination light to an object, an image pickup device acquiring an image of the object, and a CPU switching between a first mode where the image is picked up with the first illumination light and a second mode where the image is picked up with the second illumination light, being able to set at least one of a processing parameter for processing an image and a brightness control parameter before switching the illumination light to the illumination light corresponding to the mode or after switching to the corresponding illumination light is completed, and controlling whether the processing parameter is set before switching of the illumination light is started or after switching is completed according to the mode switching from the first to the second mode or from the second to the first mode.

Abstract: An endoscope apparatus has an illuminating unit that performs illumination with a first light once and performs illumination with a second light a plurality of times within a predetermined time period, an image pickup unit that outputs a first image pickup signal based on the illumination with the first light and a second image pickup signal based on the illumination with the second light, a clipping processing unit that clips the first and the second image pickup signals, a brightness calculating unit that calculates a first brightness, a composite ratio calculating unit that calculates a composite ratio according to a brightness target value and the first brightness, a composite processing unit that combines the first and the second image pickup signals according to the composite ratio, and a setting unit that sets a clip level according to the composite ratio.

Abstract: A normal light CCD 11 is driven via a normal light CCD control section 25 by a timing signal from a timing circuit section 29 of a video processor 20. At the same time, a fluorescence CCD 12 is driven via a fluorescence CCD control section 26. Then, an image pickup signal according to an RGB frame sequential method from the normal light CCD 11 is processed by a normal light image video circuit section 27 and a normal color image is created while an image pickup signal from the fluorescence CCD 12 is processed by a fluorescence image video circuit section 28, and an image pickup signal of a subject excited by blue illumination light and transmitted through a fluorescence transmitting filter 13 is extracted to create a fluorescence image of the subject.

Abstract: An endoscope apparatus includes image pickup section that outputs a first picked-up image based on illuminating light of a first band, and a second picked-up image based on the illuminating light of a second band within a predetermined time period, brightness calculating section that calculates a first brightness by color conversion matrix processing using a first image pickup signal and a second image pickup signal based on illumination of the second band by first predetermined times, and calculates a second brightness by color conversion matrix processing using the first image pickup signal and a second image pickup signal based on illumination of the second band by times other than the first predetermined times, and synthesizing section that synthesizes the first and the second image pickup signals based on a ratio of a difference value of the first brightness and a target brightness, and the second brightness.

Abstract: An adapter for endoscope includes: an image pickup device driving signal generation circuit; an image signal output circuit; an endoscope identification information reception circuit receiving endoscope ID information; a ROM storing adapter ID information about the adapter; a flash memory storing parameters for adjustment; and a control section performing control to store the parameters for adjustment into the flash memory according to a command from a processor to write the parameters for adjustment, and read the parameters for adjustment stored in the flash memory and output the parameters for adjustment stored in the flash memory to the processor according to a command from the processor to read the parameters for adjustment.

Abstract: A medical apparatus includes: a first illumination window through which a first illumination light from a first light source is irradiated to a subject; a second illumination window at different position than the first illumination window, through which a second illumination light from a second light source is irradiated to the subject; an electronic image pickup section which picks up subject images; an image creation section which generates observation images based on image pickup signals obtained by the electronic image pickup section; a light adjustment section which synchronously adjusts respective amounts of illumination lights irradiated from the first and second illumination windows; and a control unit which controls the light adjustment section or image creation section to maintain color tone of the observation image to a predetermined one according to increase/decrease of the illumination light amount from the first illumination window.