Patent application number | Description | Published |
20080306338 | LIVING BODY OBSERVATION APPARATUS - A white light from a lamp passes through R, G, and B filters of a rotating filter and turns into broadband R, G, and B frame sequential illumination lights. The lights are applied to a living mucous membrane in a body cavity through an electronic endoscope, and sequential image pickup is performed by a CCD. Output signals from the CCD are sequentially switched by a selector in a filter circuit. An R signal, a G signal, and a B signal pass through the filter circuit | 12-11-2008 |
20080306343 | ENDOSCOPIC DEVICE - An endoscopic device of the present invention comprises: an endoscope having an image pickup unit that outputs a picked up an image of a subject as an image pickup signal; an image pickup signal amplification unit; a light source unit; a light intensity control unit that controls an amount of light; a spectral unit that penetrates light in a band based on predetermined characteristics; a brightness control unit that controls a brightness of an image displayed on a display unit; and a mode switching unit that switches a first mode for emitting first illumination light and a second mode for emitting second illumination light having a band narrower than the first illumination light, wherein the brightness control unit controls the light intensity control unit and then controls the image pickup signal amplification unit in the second mode. | 12-11-2008 |
20090021578 | Image Processor and Endoscope Apparatus - An image processor includes a filter process circuit for executing a filtering of image data picked up by an image pickup unit with a plurality of spatial filters, a brightness calculation circuit for calculating a brightness in a local area of the image data, a weighting circuit for weighting an output of the filter process circuit in accordance with an output of the filter process circuit and/or an output of the brightness calculation circuit, and an inverse filter process circuit for executing an inverse filter process with respect to an output of the weighting circuit to generate process image data. | 01-22-2009 |
20090036741 | ENDOSCOPIC APPARATUS - An endoscopic apparatus according to the invention has an illumination unit capable of emitting to a subject first narrow band light having a wavelength band in a blue region and second narrow band light having a wavelength band in a green region, an image pickup unit which picks up a first subject image when the subject in the living body is illuminated with the first narrow band light, and picks up a second subject image when the subject in the living body is illuminated with the second narrow band light, a storage unit which stores the first subject image as a green component and a blue component, and stores the second subject image as a red component and a blue component, and a color tone conversion unit which performs predetermined color conversion processing to form an image of a predetermined object as an image having a predetermined first color. | 02-05-2009 |
20090040298 | LIVING BODY OBSERVATION DEVICE - A light source unit, which is connected to a control unit and an endoscope, radiates a pre-determined light quantity of white light based on a signal from the control unit. The light source unit includes a lamp as a white light source, an infrared cut filter, a light quantity limiting filter, being inserted/removed on an optical path, for limiting light quantity in a pre-determined wavelength region of white light, a filter insertion/removal driving unit for inserting/removing the light quantity limiting filter on an optical path, and a condensing lens for outputting white light. For example, when a transmission rate of a blue band is 100%, the light quantity limiting filter limits transmission rates of other bands to 50%. This improves S/N in discrete spectral image generation with illumination light in a visible light region. | 02-12-2009 |
20090041319 | LIVING BODY OBSERVATION SYSTEM - A living body observation system of the present invention includes an illumination unit for sequentially emitting as an illumination light a plurality of broad band lights and at least one narrow band light to a subject in a living body to illuminate the subject; an image pickup unit for picking up each image of the subject illuminated by the illumination unit and outputting the image as an image pickup signal; a first image generation unit for, based on the image pickup signals, generating a first observation image according to the plurality of broad band lights, and generating a second observation image according to at least one broad band light of the plurality of broad band lights, and the at least one narrow band light, using predetermined signal processing; and a second image generation unit for combining the first observation image and the second observation image to generate one image. | 02-12-2009 |
20090066787 | IMAGE PROCESSING DEVICE FOR ENDOSCOPE AND ENDOSCOPE APPARATUS - An image processing device for an endoscope includes an image processing section which performs signal processing for generating an image signal to be observed as an endoscope image, for a signal picked up with an image pickup device equipped in the endoscope, a tone correcting circuit section which corrects a tone for the image signal, and a switching section which switches an observation mode or a type for observing as an endoscope image, and changes a correction characteristic of a tone by the tone correcting circuit section in accordance with switching of the observation mode or the type. | 03-12-2009 |
20090132184 | FLOW RATE ESTIMATION METHOD OF BLOOD PUMP - In a flow rate estimation method of a blood pump, a general flow rate estimation formula which includes a correction term is formed based on a plurality of blood pumps. Measured data obtained from an objective blood pump implanted inside a patient is substituted into the correction term, thus forming a flow rate estimation formula of the objective blood pump. The flow rate Q of the objective blood pump is estimated based on the flow rate estimation formula and the values of the rotational speed N and the consumption current I of the motor of the objective blood pump, and the attribute data Z of the blood of the patient. | 05-21-2009 |
20090141125 | ENDOSCOPE APPARATUS - A band-limiting filter of the invention exhibits a trimodal filter characteristic, and includes, for example, band-limiting transmittance filter characteristic portions Rb, Gb, and Bb for wavelength regions of red, green, and blue, respectively. More specifically, the band-limiting transmittance filter characteristic portions Rb, Gb, and Bb, for example, have bandpass characteristics in which the respective center wavelengths are 630 nm (full width at half maximum λ1=30 to 90 nm), 540 nm (full width at half maximum λ2=20 to 60 nm), and 440 nm (full width at half maximum λ3=50 to 80 nm). This makes it possible to obtain an image of a predetermined color tone by restraining an influence of spectral sensitivity characteristic of an image pickup device when the band-limiting filter is applied to a synchronous type endoscope for performing color image pickup to perform observation under normal illumination light. | 06-04-2009 |
20090149706 | ENDOSCOPE APPARATUS AND SIGNAL PROCESSING METHOD THEREOF - A respective band signal conversion section of the present invention generates WLI-R, WL-G, and WLI-B for generating a normal observation light image and NBI-R, NBI-G, and NBI-B for generating a narrow-band light image from an RGB image signal obtained by irradiation with frame sequential light of a set of a rotary filter, and a synthesis circuit synthesizes frame sequential color signals of WLI-R, WLI-G, and WLI-B and frame sequential color signals of NBI-R, NBI-G, and NBI-B. Thus it is possible to simultaneously observe a same living tissue in real time in the normal light observation image and narrow-band light observation with a simple configuration. | 06-11-2009 |
20100073731 | IMAGE GENERATING APPARATUS - An image generating apparatus according to the present invention includes: a first light source unit that emits light in a first wavelength band to a subject; a second light source unit that emits light in a second wavelength band, which is a part of the first wavelength band, to the subject; an image pickup unit that picks up an image of the subject and outputs the image as an image pickup signal; a light cut filter unit that cuts light in the second wavelength band reflected from the subject; and a complementary processing unit that applies complementary processing to a component equivalent to the second wavelength band cut by the light cut filter unit in the image of the subject picked up by the image pickup unit in a state in which the subject is illuminated by the light in the first wavelength band. | 03-25-2010 |
20110077782 | BLOOD PUMP FLOW RATE ESTIMATION DEVICE - In a flow rate estimation device of a blood pump, a general flow rate estimation formula which includes a correction term is formed based on a plurality of blood pumps. Measured data obtained from an objective blood pump implanted inside a patient is substituted into the correction term, thus forming a flow rate estimation formula of the objective blood pump. The flow rate Q of the objective blood pump is estimated based on the flow rate estimation formula and the values of the rotational speed N and the consumption current I of the motor of the objective blood pump, and the attribute data Z of the blood of the patient. | 03-31-2011 |
20140204188 | ENDOSCOPE APPARATUS AND DETERIORATION DETECTION METHOD OF POLARIZATION ELEMENT OF ENDOSCOPE - An endoscope apparatus includes a flash memory that stores a reference value of a color balance adjustment value of an endoscopic image of an endoscope that picks up an object through a polarizer. The endoscope calculates, from the reference value and the color balance adjustment value of the endoscope after elapse of a predetermined time period, an amount of change in the color balance adjustment value; judges whether or not the calculated amount of change is equal to or larger than a predetermined threshold; and, when the amount of change is equal to or larger than the predetermined threshold, outputs a predetermined output. | 07-24-2014 |