Color Tv Patents (Class 348/71)
  • Patent number: 11006817
    Abstract: In an endoscope system, an image processing section on a processor side detects a movement amount or a distance in an image. An endoscopic-procedure-scene classifying section classify, from a feature value, to which of endoscopic procedure scene a scene of an image corresponds and further determines whether reliability of the classified endoscopic procedure scene is low. When the reliability is low, the endoscopic-procedure-scene classifying section decides a target compression ratio from an endoscopic procedure scene classified in the past, and transmits a compression parameter corresponding to the target compression ratio to a wireless endoscope. The wireless endoscope performs wireless transmission of an image compressed with the compression parameter.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: May 18, 2021
    Assignee: OLYMPUS CORPORATION
    Inventor: Shinsuke Tani
  • Patent number: 10948634
    Abstract: A prism sheet includes a prism substrate having at least one cavity therein and a plurality of prism microstructures arranged on a light exit surface of the prism substrate.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: March 16, 2021
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Tao Li, Zhuhua Nie, Qingping Yin, Qian Wang, Jianan Wang, Site Cai
  • Patent number: 10942391
    Abstract: There is provided a display apparatus with an improved viewing angle. The display apparatus includes a display panel configured to receive light from a light source module, wherein the display panel includes: a liquid crystal panel; a first polarizing plate positioned on a rear side of the liquid crystal panel and a second polarizing plate positioned on a front side of the liquid crystal panel; and an optical layer positioned on a front surface of the second polarizing plate, wherein the optical layer includes: a resin layer having a first refractive index, and including an accommodating groove in which a light adjusting portion is disposed, the resin layer further including a light refractive pattern protruding toward a rear direction of the display panel; and an adhesive layer having a second refractive index different from the first refractive index, and bonding the resin layer with the second polarizing plate.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: March 9, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyung Jin Lee, Wook Jae Jeon, Young Chol Lee, Ju Hyun Lee, Tae Young Lee, Seung Hun Chae, Jun Sung Choi
  • Patent number: 10873711
    Abstract: A three-dimensional imaging system includes a ladar sensor with a first field of view adapted to produce a three-dimensional image. The system also includes a visible light camera with a second field of view overlapping the first field of view and adapted to produce a two-dimensional image output. At least one digital processor is connected to the ladar sensor and the visible light camera and adapted to merge the three-dimensional image output with the two-dimensional image output into a three-dimensional point cloud output.
    Type: Grant
    Filed: February 11, 2019
    Date of Patent: December 22, 2020
    Assignee: Continental Advanced Lidar Solutions US, LLC.
    Inventors: Roger Stettner, Brad Short, Patrick Gilliland, Thomas Laux, Laurent Heughebaert
  • Patent number: 10782511
    Abstract: An objective optical system includes in order from an object side to an image side, a first lens having a negative refractive power, an aperture stop, and a second lens having a positive refractive power. An image-side surface of the first lens is a surface which is concave toward the image side, and an image-side surface of the second lens is a surface which is convex toward the image side, and following conditional expressions (1), (2), (3), (4), (5), (6), and (7) are satisfied: 0.6<LL1is/LsL2i<1.25??(1) ?3<(LL1is/RL1i)×(LsL2i/RL2i)<?1.25??(2) ?2<fL22/(f×fL1)<?1.35??(3) 2<(nd1?1.63)×(?d1?31)??(4) 5<(n2?1.45)×(?d2?31)??(5) 1.63<nd1, and, 31<?d1??(6) 1.45<nd2, and, 31<?d2??(7).
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: September 22, 2020
    Assignee: OLYMPUS CORPORATION
    Inventor: Tsutomu Igarashi
  • Patent number: 10749244
    Abstract: A substrate for a medical device, a portion of which is brought into contact with or inserted into a subject. The substrate includes a patient circuit conductively connected to the portion that is configured to be brought into contact with or inserted into the subject, and a ground-side circuit configured to perform at least one of transmission of a signal, reception of a signal, and supply of electric power on the patient circuit. The ground-side circuit is grounded by a protective ground to ensure safety of a manipulator of the medical device. The substrate also includes an insulating layer between the patient circuit and the ground-side circuit providing insulation between the patient circuit and the ground-side circuit, and an isolated circuit provided apart from the patient circuit and the ground-side circuit on the insulating layer and having a different reference potential from the patient circuit and the ground-side circuit.
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: August 18, 2020
    Assignee: SONY OLYMPUS MEDICAL SOLUTIONS INC.
    Inventor: Kiyotaka Kanno
  • Patent number: 10667676
    Abstract: An electronic endoscope removably connected to a video processor in which a predetermined gamma characteristic is set includes: an image pickup device provided at a distal end of an insertion portion configured to be inserted into a subject, the image pickup device being configured to pick up an optical image of the subject to generate an image pickup signal; a gain circuit configured to amplify the image pickup signal using a predetermined gain parameter; a gamma characteristic recognition circuit configured to recognize the gamma characteristic of the video processor; and a gain adjustment circuit configured to set the gain parameter according to the gamma characteristic.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: June 2, 2020
    Assignee: OLYMPUS CORPORATION
    Inventors: Yasunori Matsui, Shinji Yamashita, Yuzuru Tanabe, Yuta Matsuno
  • Patent number: 10645255
    Abstract: A system and method for calibrating an endoscope having the camera and the light source close to each other in an enclosed environment. The system includes a colour chart plate, being specularly reflecting, having radially extending colour patches, and a circular central achromatic bright field that can handle the automatic gain control of the camera. The colour chart can be mounted into a container unit having mechanically connected holders to support the endoscope arm.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: May 5, 2020
    Assignee: BARCO NV
    Inventors: Lode De Paepe, Guillaume Spalla, Arnout Vetsuypens, Gert Van Hoey
  • Patent number: 10578921
    Abstract: A brightness homogenizing member comprising: an incidence surface and an emission surface, the brightness homogenizing member has a lamination structure in which the brightness homogenizing member has a layer of high refractive index and a layer of low refractive index are alternately laminated in a direction perpendicular to the emission surface, each of a plurality of the layers of high refractive index includes, on a light emission surface side, a light bending portion that bends at least a portion of light proceeding in a direction intersecting to the emission surface and cause the light to proceed in a direction in which an in-plane component parallel to the emission surface increases, in a case where the lamination structure is planarly viewed from a lamination direction in the lamination structure, the light bending portions are provided in different positions between the plurality of the layers of high refractive index.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: March 3, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Yukito Saitoh, Naoyoshi Yamada
  • Patent number: 10400967
    Abstract: An ophthalmic illumination system includes a light source to emit a light beam and a filter comprising a clear region to transmit visible light in the visible spectrum and a first filtered region to transmit visible light in a first spectral range. The filter is arranged within the optical path of the beam. The system includes a plurality of chromaticity sensors to receive a portion of the light beam transmitted by the filter and output a signal indicating chromaticity of the received beam. The system also includes a processor to receive the signal indicating chromaticity, compare the indicated chromaticity to a target chromaticity stored in memory and, based on the comparison, adjust the chromaticity of the light beam transmitted by the filter by generating a signal to move the filter from a first position in which the light beam is incident upon only the clear region to a second position in which the light beam is partially incident on both the clear region and the first filtered region.
    Type: Grant
    Filed: June 12, 2017
    Date of Patent: September 3, 2019
    Assignee: Novartis AG
    Inventor: Ronald T. Smith
  • Patent number: 10231600
    Abstract: An image processing apparatus has a color image obtaining means configured obtain color image data representing a color image of biographic tissues, a lesion determining means configured to determine whether each pixel of the color image is of a lesion part based on the color image data, and a marking means configured to apply a mark indicating a position of the lesion part on the color image based on a result of determination, and the mark is configured such that the color image at a background of the mark can be seen.
    Type: Grant
    Filed: February 8, 2016
    Date of Patent: March 19, 2019
    Assignee: HOYA CORPORATION
    Inventors: Yousuke Ikemoto, Tadashi Minakuchi, Atsushi Komoro, Toshio Tachibana, Noriko Ota
  • Patent number: 10159404
    Abstract: An endoscope apparatus includes: a light source that emits white light or narrow-band light; an image sensor having pixels; a color filter including a filter unit having a plurality of filters in which the number of filters for passing green wavelength band light and the number of filters for passing blue wavelength band light satisfy predetermined conditions; a first gain adjustment unit that adjusts a gain of an electric signal generated by the image sensor; a demosaicing processing unit that generates an image signal of a color component passing through a filter based on the electric signal whose gain has been adjusted by the first gain adjustment unit; a color conversion processing unit that performs color separation on an image signal when the light source unit emits the white light; and a second gain adjustment unit that adjusts a gain of each image signal subjected to the color conversion processing.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: December 25, 2018
    Assignee: OLYMPUS CORPORATION
    Inventor: Yasunori Morita
  • Patent number: 9974430
    Abstract: An ingestible scanning device includes, in an embodiment, a capsule housing having a transparent window and sized so as to be ingestible, a photo-sensing array located within the capsule housing, a mirror located within the housing and oriented to direct an image from a surface outside the transparent window to the photo-sensing array, and a light source for illuminating the surface outside the transparent window.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: May 22, 2018
    Assignee: Innurvation, Inc.
    Inventors: William Robert Bandy, Brian Glenn Jamieson, Kevin James Powell, Kenneth Edward Salsman, Robert Charles Schober, John Weitzner, Michael R. Arneson
  • Patent number: 9829737
    Abstract: Provided is a liquid crystal device including: a liquid crystal panel including a first substrate having a first vertical alignment film, a second substrate having a second vertical alignment film, a liquid crystal layer which is interposed between the first vertical alignment film and the second vertical alignment film and has a negative dielectric anisotropy, a first polarizing plate that is disposed on a light-incident side of the liquid crystal layer, and a second polarizing plate that is disposed on a light-emitting side of the liquid crystal layer; an illuminating device which is disposed on a light-incident side of the liquid crystal panel, and emits light toward the liquid crystal panel; and a light control member which is disposed on a light-emitting side of the liquid crystal panel, and diffuses light that is emitted from the liquid crystal panel in an azimuth angle direction and a polar angle direction viewed from a normal direction of the liquid crystal panel to control an emission direction of th
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: November 28, 2017
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Shohei Katsuta, Tsuyoshi Maeda, Hideomi Yui, Yuhsuke Tsuda
  • Patent number: 9717398
    Abstract: The invention relates to a lighting system for endoscopic examinations having a lighting unit that includes at least two LED elements for illuminating an area of examination that is to be observed by means of an endoscope optic. To create a lighting system for endoscopic examinations that ensures a constantly sufficient illumination of the area of examination, it is proposed according to the invention that the direction of radiation of the lighting unit can be displaced between a direction essentially perpendicular to the direction of observation of the endoscope optic upon insertion into the area of examination and a direction essentially in the direction of observation of the endoscope optic after insertion into the area of examination.
    Type: Grant
    Filed: September 21, 2006
    Date of Patent: August 1, 2017
    Assignee: Karl Storz GmbH & Co. KG
    Inventor: Klaus M. Irion
  • Patent number: 9706953
    Abstract: First illumination light of a first wavelength range, in which light absorption coefficient of blood hemoglobin varies with oxygen saturation thereof, is projected into a test subject body, to capture a first image signal from the first illumination light as reflected from inside the test subject body. Then second illumination light of a second wavelength range different from the first wavelength range is projected into a test subject body, to capture a second image signal from the second illumination light as reflected from inside the test subject body. A subject image of the test subject is produced from the second image signal. Oxygen saturation levels of the test subject are calculated using the first and second image signals. According to the calculated oxygen saturation levels, color properties of the subject image are changed to produce an oxygen saturation image.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: July 18, 2017
    Assignee: FUJIFILM CORPORATION
    Inventor: Takaaki Saito
  • Patent number: 9442019
    Abstract: An infrared imaging probe that includes an elongated wand and an electrically isolating connection between the imaging components, located at the distal end of the wand, and the image processing components, located at the proximal end of the wand.
    Type: Grant
    Filed: December 24, 2009
    Date of Patent: September 13, 2016
    Assignee: Fluke Corporation
    Inventors: Matthew F. Schmidt, Thomas J. McManus
  • Patent number: 9438874
    Abstract: An image processing apparatus capable of highly accurately detecting and correcting color shift of image data, caused by a chromatic difference of magnification. The image processing apparatus stores first color shift amount data including color shift amount information of the image data and accuracy information indicative of detection accuracy of the color shift. The image processing apparatus analyzes the image data to thereby determine second color shift amount data including color shift amount information of the image data and accuracy information indicative of detection accuracy of the color shift. The image processing apparatus corrects the color shift of the image data using the color shift amount information selected from the first and color shift amount data, based on the accuracy information included in the first color shift amount data and the accuracy information included in the second color shift amount data.
    Type: Grant
    Filed: August 20, 2014
    Date of Patent: September 6, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Masato Uchihara
  • Patent number: 9277205
    Abstract: Mixed mode imaging is implemented using a single-chip image capture sensor with a color filter array. The single-chip image capture sensor captures a frame including a first set of pixel data and a second set of pixel data. The first set of pixel data includes a first combined scene, and the second set of pixel data includes a second combined scene. The first combined scene is a first weighted combination of a fluorescence scene component and a visible scene component due to the leakage of a color filter array. The second combined scene includes a second weighted combination of the fluorescence scene component and the visible scene component. Two display scene components are extracted from the captured pixel data in the frame and presented on a display unit.
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: March 1, 2016
    Assignee: Intuitive Surgical Operations, Inc.
    Inventors: Wenyi Zhao, Jeffrey DiCarlo, Ian E. McDowall
  • Patent number: 9259140
    Abstract: An endoscope apparatus is an endoscope apparatus having an insertion portion having an image pickup device in a distal end portion, and a main body portion, and has a drive circuit that outputs a drive signal that drives the image pickup device, and a changing section that changes at least one of a pulse width and a peak value of a reset gate signal included in the drive signal, in response to a temperature of a vicinity of the image pickup device or the main body portion.
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: February 16, 2016
    Assignee: OLYMPUS CORPORATION
    Inventor: Masahiro Hirosawa
  • Patent number: 9254078
    Abstract: In a minimally invasive surgical system, an image capture unit includes a prism assembly and sensor assembly. The prism assembly includes a beam splitter, while the sensor assembly includes coplanar image capture sensors. Each of the coplanar image capture sensors has a common front end optical structure, e.g., the optical structure distal to the image capture unit is the same for each of the sensors. A controller enhances images acquired by the coplanar image capture sensors. The enhanced images may include (a) visible images with enhanced feature definition, in which a particular feature in the scene is emphasized to the operator of minimally invasive surgical system; (b) images having increased image apparent resolution; (c) images having increased dynamic range; (d) images displayed in a way based on a pixel color component vector having three or more color components; and (e) images having extended depth of field.
    Type: Grant
    Filed: February 23, 2014
    Date of Patent: February 9, 2016
    Assignee: Intuitive Surgical Operations, Inc.
    Inventor: Ian E. McDowall
  • Patent number: 9258549
    Abstract: Mixed mode imaging is implemented using a single-chip image capture sensor with a color filter array. The single-chip image capture sensor captures a frame including a first set of pixel data and a second set of pixel data. The first set of pixel data includes a first combined scene, and the second set of pixel data includes a second combined scene. The first combined scene is a first weighted combination of a fluorescence scene component and a visible scene component due to the leakage of a color filter array. The second combined scene includes a second weighted combination of the fluorescence scene component and the visible scene component. Two display scene components are extracted from the captured pixel data in the frame and presented on a display unit.
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: February 9, 2016
    Assignee: Intuitive Surgical Operations, Inc.
    Inventors: Jeffrey DiCarlo, Ian E. McDowall, Wenyi Zhao
  • Patent number: 9182279
    Abstract: An optical module includes a wavelength variable interference filter that selects light of a predetermined wavelength from incident light, and can change the wavelength of emitted light; a global shutter imaging element that accumulates electric charges while being exposed to the emitted light, and outputs a detection signal in response to the accumulated electric charges; an imaging element controller for setting a photodetection period during which the electric charges are accumulated in the imaging element, and a standby period during which the electric charges accumulated in the imaging elements are reset; and a spectroscopic controller for controlling the wavelength change driving of the emitted light. The imaging element controller sets the duration of the standby period to a minimum drive time for changing the wavelength or greater. The spectroscopic controller starts the wavelength change driving at the start of the standby period.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: November 10, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Danjun Zhao, Tetsuo Tatsuda, Shinichi Arazaki
  • Patent number: 9107603
    Abstract: An electronic endoscope system includes a light source apparatus, a CCD, and a processor apparatus. The light source apparatus applies illumination light to a target portion. The target portion includes a surface blood vessel and a subsurface blood vessel. The CCD captures light reflected from the target portion. The processor apparatus generates an image based on an imaging signal from the CCD. The processor apparatus has a suppression processor. Out of the surface blood vessel and the subsurface blood vessel in an image, the suppression processor reduces contrast of a non-target blood vessel relative to that of a target blood vessel to suppress or reduce display of the non-target blood vessel relative to that of the target blood vessel.
    Type: Grant
    Filed: December 23, 2011
    Date of Patent: August 18, 2015
    Assignee: FUJIFILM CORPORATION
    Inventor: Toshihiko Kaku
  • Patent number: 9106786
    Abstract: An Ethernet-based image transmitting/receiving system including a image transmitting device configured to generate and transmit a packet including at least one multiplexed signal of a luminance signal and a chrominance signal; an image receiving device configured to receive the packet, extract the luminance signal and the chrominance signal from the multiplexed signal of the packet, store the luminance signal and the chrominance signal, and output the luminance signal and the chrominance signal by synchronizing lines with each other based on the synchronization information; and an Ethernet cable configured to connect the image transmitting device to the image receiving device and transmit the packet.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: August 11, 2015
    Assignee: SAMSUNG TECHWIN CO., LTD.
    Inventor: Hak-jae Kim
  • Patent number: 9066676
    Abstract: An endoscopic image display apparatus reads taken image data in which a taken image outputted from an endoscope is recorded, and reproduces and displays the taken image. The taken image data includes intensity information about a plurality of fundamental color components. The endoscopic image display apparatus includes an intensity changing unit which selectively reduces intensity of a specific color component in the taken image data by using the intensity information.
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: June 30, 2015
    Assignee: FUJIFILM CORPORATION
    Inventors: Wataru Sasaki, Goro Miura, Kunimasa Shimizu, Atsushi Misawa, Yasuhiro Asai
  • Patent number: 9041793
    Abstract: A method of using a scanning microscope to rapidly form a digital image of an area. The method includes performing an initial set of scans to form a guide pixel set for the area and using the guide pixel set to identify regions representing structures of interest in the area. Then, performing additional scans of the regions representing structures of interest, to gather further data to further evaluate pixels in the regions, and not scanning elsewhere in the area.
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: May 26, 2015
    Assignee: FEI COMPANY
    Inventors: Cliff Bugge, Brandon van Leer
  • Publication number: 20150138329
    Abstract: Embodiments of the invention include a method and system for displaying an in vivo imaging procedure. The method includes receiving real-time image data captured by the capsule, and continuously generating an updated summarized color bar, said color bar comprising color strips and time scale marks. The color bar is calculated based on color values of received image data, and is updated continuously as new image data is received. The displayed time period is periodically updated, for example based on pre determined fixed time intervals, based on varying time intervals, or based on an accumulated amount of received image data. Other methods of determining the periodic updates may be used.
    Type: Application
    Filed: May 2, 2013
    Publication date: May 21, 2015
    Inventors: Ori Braun, Yaniv Ben Zriham, Elisha Rabinowitz, Tomer Carmeli, Jeremy Pinchas Gerber
  • Patent number: 9025017
    Abstract: A method for detecting a capsule camera entering into or exiting the GI tract, includes (a) taking a first test image under the condition that an illumination system of the capsule camera is disabled; (b) taking a second test image under the same condition as the first test image; (c) comparing selected corresponding pixel values of the first test image and the second test image to determine if a significant change in pixel values has occurred; and (d) upon detecting the significant change in pixel values, determining if the capsule camera has entered or exited the GI tract, and performing operations appropriate to follow such determination.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: May 5, 2015
    Assignee: Capso Vision, Inc.
    Inventor: Kang-Huai Wang
  • Publication number: 20150092090
    Abstract: An image processing apparatus includes a reference image signal outputting unit that outputs a reference image signal in which color information of a plurality of colors is included in a chart image in a display plane or a time axis, a color display information detection unit that detects color display information of an image displayed on a displaying unit based on the reference image signal, a profile generation unit that generates a display characteristic profile of the displaying unit using the detected color display information and the color information of the chart image, a display characteristic correcting unit that generates a color correction image signal obtained by correcting an image signal to be output which is input from a modality based on the display characteristic profile, and a standardization processing unit that converts the generated color correction image signal to a standardization image signal.
    Type: Application
    Filed: September 29, 2014
    Publication date: April 2, 2015
    Inventor: Nobuyuki MIURA
  • Publication number: 20150092036
    Abstract: It is a method of driving a MOS type imaging element in which pixels having sensitivities for different colors are arranged two-dimensionally, in which the imaging element has at least two types of read-out lines having different pixel arrangements to read out a charge signal of the pixels, and the method includes driving such that a read-out time interval of a charge signal of at least one type of read-out line among the read-out lines is longer than a read-out time interval of another type of read-out line and a charge accumulating period of each pixel of the one type of read-out line is longer than a charge accumulating period of each pixel of said another type of read-out line.
    Type: Application
    Filed: September 26, 2014
    Publication date: April 2, 2015
    Applicant: FUJIFILM CORPORATION
    Inventor: Masaaki KOSHIBA
  • Publication number: 20150049177
    Abstract: Methods and arrangements for detecting osteoarthritis (OA) relate to image processing for enhancing, visualizing and quantifying the fibrillation structure of cartilage using endoscopes. A structure enhancement method comprises obtaining input data, conversion to intensity data, preprocess filtering, intensity fluctuation filtering and contrast enhancement. The degeneration is quantified by a degeneration index (DI) algorithm, applied to the structure enhanced image. Results are then compiled in an output frame presentation.
    Type: Application
    Filed: February 6, 2013
    Publication date: February 19, 2015
    Inventors: Anders Johansson, Åke P. Öberg, Tommy Sundqvist, Fredrik Persson
  • Patent number: 8957952
    Abstract: In a processor of a wireless image transmission system that transmits, by radio communication, an image signal obtained by converting an image obtained by an endoscope apparatus, a communication state detection unit monitors a communication state of radio communication. An editing unit edits the image signal according to a mode in which the endoscope apparatus obtains an image when the deterioration of a communication state is detected by the communication state detection unit. A transmission unit transmits the image signal output from the editing unit to a receiver.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: February 17, 2015
    Assignee: Olympus Medical Systems Corp.
    Inventors: Junichi Tashiro, Masashi Umemura, Hideki Tashiro
  • Publication number: 20150042775
    Abstract: An efficient demosaicing method includes reconstructing missing green pixels after estimating green-red color difference signals and green-blue color difference signals that are used in the reconstruction, and then constructing missing red and blue pixels using the color difference signals. This method creates a full resolution frame of red, green and blue pixels. The full resolution frame of pixels is sent to a display unit for display. In an efficient demosaicing process that includes local contrast enhancement, image contrast is enhanced to build and boost a brightness component from the green pixels, and to build chromatic components from all of the red, green, and blue pixels. Color difference signals are used in place of the red and blue pixels in building the chromatic components.
    Type: Application
    Filed: August 5, 2014
    Publication date: February 12, 2015
    Inventor: Wenyi Zhao
  • Publication number: 20140340497
    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.
    Type: Application
    Filed: May 13, 2014
    Publication date: November 20, 2014
    Applicant: FUJIFILM Corporation
    Inventor: Norimasa SHIGETA
  • Publication number: 20140320620
    Abstract: A lesion evaluation information generator including a processor configured to, when executing processor-executable instructions stored in a memory, determine a hue value and a saturation value of each of pixels of an endoscopic image based on an acquired endoscopic color image data, determine, for at least a part of the pixels of the endoscopic image, a correlation value between color information of each individual pixel and reference color data, based on a hue correlation value between the hue value of each individual pixel and a reference hue value of the reference color data, and a saturation correlation value between the saturation value of each individual pixel and a reference saturation value of the reference color data, and generate an evaluation value for evaluating a severity of a lesion in the endoscopic image, by integrating the correlation value of each individual pixel.
    Type: Application
    Filed: April 24, 2014
    Publication date: October 30, 2014
    Applicants: Kyoto University, HOYA CORPORATION
    Inventors: Yousuke IKEMOTO, Hiroshi NAKASE, Minoru MATSUURA, Takuya YOSHINO, Hirokazu HIGUCHI
  • Patent number: 8866835
    Abstract: A color adjustment system for a display device includes a computer device, and a display device for displaying an image. The display device selectably displays a plurality of color temperature color presets. The computer device makes a white point adjustment to the display device, based on a color temperature color preset selected from among the plurality of color temperature color presets by a selecting operation from the computer device.
    Type: Grant
    Filed: October 1, 2009
    Date of Patent: October 21, 2014
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hideki Tanizoe, Hidenori Sakai, Yasuhiro Arakawa, Hiroshi Ueno
  • Patent number: 8854445
    Abstract: An endoscope apparatus includes an image pickup section equipped with a color separation section that picks up an image of returning light from a subject illuminated by an illumination section, an emphasis processing section that performs emphasis processing on sharpness of an image signal generated from the output signal of the image pickup section and a storage section that stores information for modifying processing contents of the emphasis processing, wherein the storage section stores information for setting image signals to be subjected to emphasis processing in first and second observation modes in which images are picked up under illumination of white light and narrow band light respectively to a luminance signal and a color difference signal, and the emphasis processing section performs emphasis processing on the luminance signal with a greater emphasis characteristic than the color difference signal over an entire frequency domain.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: October 7, 2014
    Assignee: Olympus Medical Systems Corp.
    Inventor: Kenji Yamazaki
  • Publication number: 20140293031
    Abstract: There is provided an image processing device including an image information acquisition unit configured to acquire a captured image from an endoscope, an adjustment information acquisition unit configured to acquire color calibration information about color calibration performed in a display device on which the captured image is displayed, a transmission unit configured to transmit, to a printing device, print data corresponding to the acquired captured image, and a correction value acquisition unit configured to acquire a correction value used for performing, on the print data, correction that is corresponding to the color calibration of the acquired color calibration information.
    Type: Application
    Filed: March 21, 2014
    Publication date: October 2, 2014
    Applicant: Sony Corporation
    Inventor: Hiroe Honma
  • Publication number: 20140225992
    Abstract: In a minimally invasive surgical system, an image capture unit includes a prism assembly and sensor assembly. The prism assembly includes a beam splitter, while the sensor assembly includes coplanar image capture sensors. Each of the coplanar image capture sensors has a common front end optical structure, e.g., the optical structure distal to the image capture unit is the same for each of the sensors. A controller enhances images acquired by the coplanar image capture sensors. The enhanced images may include (a) visible images with enhanced feature definition, in which a particular feature in the scene is emphasized to the operator of minimally invasive surgical system; (b) images having increased image apparent resolution; (c) images having increased dynamic range; (d) images displayed in a way based on a pixel color component vector having three or more color components; and (e) images having extended depth of field.
    Type: Application
    Filed: April 22, 2014
    Publication date: August 14, 2014
    Applicant: Intuitive Surgical Operations, Inc.
    Inventor: IAN McDOWALL
  • Publication number: 20140204188
    Abstract: 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.
    Type: Application
    Filed: March 14, 2014
    Publication date: July 24, 2014
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Daiki ARIYOSHI, Kazuhiro GONO, Kenji YAMAZAKI, Ryo MACHIDA
  • Publication number: 20140176680
    Abstract: In one embodiment of the invention, an apparatus is disclosed including an image sensor, a color filter array, and an image processor. The image sensor has an active area with a matrix of camera pixels. The color filter array is in optical alignment over the matrix of the camera pixels. The color filter array assigns alternating single colors to each camera pixel. The image processor receives the camera pixels and includes a correlation detector to detect spatial correlation of color information between pairs of colors in the pixel data captured by the camera pixels. The correlation detector further controls demosaicing of the camera pixels into full color pixels with improved resolution. The apparatus may further include demosaicing logic to demosaic the camera pixels into the full color pixels with improved resolution in response to the spatial correlation of the color information between pairs of colors.
    Type: Application
    Filed: February 25, 2014
    Publication date: June 26, 2014
    Applicant: Intuitive Surgical Operations, Inc.
    Inventors: Jeffrey DiCarlo, David D. Scott, Wenyi Zhao
  • Publication number: 20140176692
    Abstract: An image with an expanded depth of field is more effectively acquired while reducing the manufacturing cost, without enlarging the apparatus. Provided is an endoscope system including: an objective optical system that is provided at an insertion portion tip and that acquires a subject image; an optical path division means for dividing the subject image into two optical images with different focuses; an imaging element that forms the two optical images with different focuses at the same time to acquire two images; an image correction means that corrects the two images acquired by the imaging element so that differences other than the focuses become substantially the same; and an image combination processing unit that selects an image with a relatively high contrast in predetermined corresponding areas between the two images corrected by the image correction means to generate a combined image.
    Type: Application
    Filed: December 22, 2013
    Publication date: June 26, 2014
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Hiroshi Tsuyuki, Takeshi Suga, Masao Sambongi
  • Patent number: 8711252
    Abstract: An image processing device includes a normal light image acquisition section that acquires a normal light image, the normal light image being an image that includes information within a wavelength band of white light, a special light image acquisition section that acquires a special light image, the special light image being an image that includes information within a specific wavelength band, a normal light motion vector information calculation section that calculates normal light motion vector information based on a feature quantity included in the normal light image, the normal light motion vector information indicating a motion vector between a plurality of normal light images, and a noise reduction section that reduces an amount of noise included in the special light image based on the normal light motion vector information calculated by the normal light motion vector information calculation section.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: April 29, 2014
    Assignee: Olympus Corporation
    Inventor: Seigo On
  • Patent number: 8698884
    Abstract: A light source apparatus includes: a first light source unit including a plurality of light sources arranged therein, the plurality of light sources each emitting illuminating light in a first wavelength band; a second light source unit including a plurality of light sources arranged therein, the plurality of light sources each emitting illuminating light in a second wavelength band; an in-light source light guiding channel that guides the light emitted from the first light source unit and the light emitted from the second light source unit to a proximal end-side input end of a light guiding channel in an endoscope; and a light source control section that, based on endoscope information from an endoscope information storing section, divides the plurality of light sources in the first light source unit into a first light source group, light from which enters a vicinity of an optical axis of the proximal end-side input end of the light guiding channel in the endoscope, and a second light source group in a perip
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: April 15, 2014
    Assignee: Olympus Medical Systems Corp.
    Inventor: Hirokazu Godo
  • Patent number: 8698885
    Abstract: In one embodiment of the invention, an apparatus is disclosed including an image sensor, a color filter array, and an image processor. The image sensor has an active area with a matrix of camera pixels. The color filter array is in optical alignment over the matrix of the camera pixels. The color filter array assigns alternating single colors to each camera pixel. The image processor receives the camera pixels and includes a correlation detector to detect spatial correlation of color information between pairs of colors in the pixel data captured by the camera pixels. The correlation detector further controls demosaicing of the camera pixels into full color pixels with improved resolution. The apparatus may further include demosaicing logic to demosaic the camera pixels into the full color pixels with improved resolution in response to the spatial correlation of the color information between pairs of colors.
    Type: Grant
    Filed: February 14, 2011
    Date of Patent: April 15, 2014
    Assignee: Intuitive Surgical Operations, Inc.
    Inventors: Jeffrey DiCarlo, David D. Scott, Wenyi Zhao
  • Patent number: 8681208
    Abstract: An image processing device includes a special light image acquisition section that acquires an image including an object image that includes information in a specific wavelength band as a special light image, an attention area detection section that detects an attention area based on a feature quantity of each pixel of the special light image, a disappearance determination section that determines whether or not the attention area has disappeared from a display target area based on a detection result for the attention area, the display target area being an area displayed on an output section, a guide information generation section that generates guide information about the attention area that has disappeared based on a determination result of the disappearance determination section, and an output control section that controls output of information including the guide information generated by the guide information generation section.
    Type: Grant
    Filed: April 15, 2011
    Date of Patent: March 25, 2014
    Assignee: Olympus Corporation
    Inventor: Koichiro Yoshino
  • Patent number: 8675058
    Abstract: An electronic endoscope apparatus includes a connection unit for selectively connecting a plurality of machine types of electronic endoscopes which use different color information obtainment methods and a plurality of replacement tables which are provided for the plurality of machine types of electronic endoscopes respectively, and each of which stores a correspondence between values representing colors which can be obtained by each of the electronic endoscopes by photographing an observation object and values representing the true colors of the observation object. The electronic endoscope apparatus distinguishes the machine type of the electronic endoscope and replaces the values of obtained colors by using the replacement table for the distinguished machine type. Further, the electronic endoscope apparatus stores setting information for each purpose of examination, and further performs image processing, based on selected setting information, on the image of which the values of the colors have been replaced.
    Type: Grant
    Filed: October 20, 2005
    Date of Patent: March 18, 2014
    Assignees: Fujinon Corporation, FUJIFILM Corporation
    Inventors: Yoshifumi Donomae, Kazunori Abe
  • Publication number: 20140063216
    Abstract: In an oxygen saturation level measurement mode, a color image sensor images an internal body portion alternately irradiated with measurement light and normal light. A normal image is produced from image data obtained under irradiation with the normal light. An oxygen saturation level is calculated from image data obtained under irradiation with the measurement light. Based on the oxygen saturation level, a hyperoxic region and a hypoxic region are determined in the normal image. A color balance process and a color enhancement process are applied to the hyperoxic region to improve visibility of depressions and projections of internal body tissue and a blood vessel pattern. A gain process is applied to the hypoxic region to make distinct color variations according to the degree of the oxygen saturation level.
    Type: Application
    Filed: August 29, 2013
    Publication date: March 6, 2014
    Applicant: FUJIFILM Corporation
    Inventor: Masahiro KUBO
  • Patent number: 8659648
    Abstract: In an endoscope apparatus, a first color separation section separates an image picked up by an image pickup section into a first luminance signal and a first color difference signal, then a first color conversion section and a second color separation section convert the first luminance signal and the first color difference signal to first three primary color signals and second three primary color signals respectively, a signal intensity ratio calculation circuit calculates a signal intensity ratio among the first three primary color signals, matrix coefficients of the second color separation section are changed based on the calculated signal intensity ratio and the second color separation section converts the first luminance signal and the second color difference signal to the second three primary color signals.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: February 25, 2014
    Assignee: Olympus Medical Systems Corp.
    Inventor: Kenji Yamazaki