| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 348070000 | Color sequential illumination | 12 |
| 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 |
| 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 |
| 20120257030 | ENDOSCOPE APPARATUS AND IMAGE ACQUISITION METHOD OF THE ENDOSCOPE APPARATUS - An endoscope apparatus is provided. The endoscope apparatus includes an illumination unit configured to selectively provide light of different wavelength bands and white light, a sensing unit configured to generate an image signal by receiving light of a near infrared wavelength band and light of a visible light band, and an image processing unit configured to generate a color image and a plurality of narrow band images from image signals of different wavelength bands generated by the sensing unit. The sensing unit includes a plurality of photodetection pixels, each photodetection pixel comprising an infrared sub-pixel for sensing near infrared light, a red sub-pixel for sensing red light, a blue sub-pixel for sensing blue light, and a green sub-pixel for sensing green light. | 10-11-2012 |
| 20130113908 | IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD - Provided is an image processing device including an illuminating portion that irradiates a subject with illumination light and excitation light; a fluorescence image-acquisition portion that acquires a fluorescence image by capturing fluorescence generated at the subject; a return-light image-acquisition portion that acquires a return-light image by capturing return light returning from the subject; a color-image generating portion that generates a plurality of color images by adding different types of color information that constitute a color space to the acquired fluorescence image and return-light image; and an image combining portion that combines the plurality of color images that have been generated, wherein at least one of the fluorescence image and the return-light image is subjected to, by the color-image generating portion), correction processing in which exponents for distance characteristics, which are approximated to exponential functions, for the fluorescence image and the return-light image are matched with each other. | 05-09-2013 |
| 20130162790 | ELECTRONIC ENDOSCOPE SYSTEM - An electronic endoscope system includes a light source that emits light including at least a visible light band; an optical filter that has a transmittance peak at a particular wavelength within a continuous wavelength band including at least the visible light band and that has a transmittance distribution which is larger than zero and is smaller than a half of the transmittance peak within an entire of the continuous wavelength band excepting the transmittance peak; an optical filter switching means that inserts the optical filter into an illumination optical path of the light source or retracts the optical filter from the illumination optical path; a color solid state image pick-up device that receives reflected light from a subject illuminated with illumination light which has passed through the optical filter or has not passed through the optical filter; and an image generating means that generates a color image which can be displayed on a monitor by processing an imaging signal output by the solid state image pick-up device. | 06-27-2013 |
| 20130286176 | IMAGING SYSTEM WITH A SINGLE COLOR IMAGE SENSOR FOR SIMULTANEOUS FLUORESCENCE AND COLOR VIDEO ENDOSCOPY - An endoscopic video system and method using a camera with a single color image sensor, for example a CCD color image sensor, for fluorescence and color imaging and for simultaneously displaying the images acquired in these imaging modes at video rates in real time is disclosed. The tissue under investigation is illuminated continuously with fluorescence excitation light and is further illuminated periodically using visible light outside of the fluorescence excitation wavelength range. The illumination sources may be conventional lamps using filters and shutters, or may include light-emitting diodes mounted at the distal tip of the endoscope. | 10-31-2013 |
| 20130293693 | ENDOSCOPE APPARATUS - An endoscope apparatus includes a light source device, an image pickup device, and an observation monitor. The video processor applies, on the basis of a difference between a first image signal having a peak wavelength of a spectral characteristic and a second image signal having a peak wavelength of the spectral characteristic that a value in the absorption characteristic is lower than the value in the absorption characteristic of the first image signal and a scattering characteristic of the living tissue is suppressed more than the scattering characteristic of the first image signal between a wavelength band including a maximum value and a wavelength band at a minimum value in an absorption characteristic of a living tissue, processing for enhancing the first image signal and generates an enhanced and corrected image signal. | 11-07-2013 |
| 20140362200 | IMAGE PROCESSING APPARATUS AND ENDOSCOPE - An embodiment of an image processing apparatus includes: an illuminating section which sequentially irradiates an object with a first and second illuminating light beams polarized in different directions. The section emits the polarized light beams sequentially so that the wavelength ranges of the light beams do not overlap with each other. The apparatus further includes: a polarization image sensor; a polarization mosaic processing section which obtains a first polarization image while the object is being irradiated with the first illuminating light beam and a second polarization image while the object is being irradiated with the second illuminating light beam; a depressed area detecting section which detects a depressed area on the surface of the object based on the polarization images; and an image forming section which forms an image representing the depressed area in an enhanced form. | 12-11-2014 |
| 20150022647 | ENDOSCOPE APPARATUS - An endoscope apparatus includes an illuminating section capable of irradiating a subject with a light in a first wavelength band and light in a second wavelength band, an image processing section including a color filter configured by a plurality of filters, the image processing section generating, from two image pickup signals respectively generated in a first pixel and a second pixel that respectively receive light in a predetermined wavelength band and light in a wavelength band different from the predetermined wavelength band among return lights from the subject, first and second image signals, a control section that determines whether the two image pickup signals can be separated into the first and second image signals, and an illumination control section that performs irradiation in a time division manner or simultaneous irradiation according to a determination result whether the separation is possible or not. | 01-22-2015 |
| 20150305607 | IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD, AND PROGRAM - 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. | 10-29-2015 |
| 20160089010 | ENDOSCOPE SYSTEM, PROCESSOR DEVICE, AND METHOD FOR OPERATING ENDOSCOPE SYSTEM - An endoscope system is provided with a light source unit for generating illumination light, an image sensor for imaging an object of interest irradiated with the illumination light, an image signal obtaining section, and a calculated image signal generator. The image signal obtaining section obtains a B | 03-31-2016 |
| 20160377856 | OPTICAL SCANNING OBSERVATION APPARATUS - An optical scanning observation apparatus includes: a light source selectively emitting a plurality of illumination lights of different colors; a light emission timing controller controlling light emission timing, based on a predetermined ratio of number of light emissions of each color of the illumination light emitted from the light source; a fiber guiding the illumination light from the light source; an actuator vibratory driving the tip part of the fiber; an optical system for irradiating the illumination light emitted from the fiber; an optical detector; and a signal processor. | 12-29-2016 |
