Patents by Inventor Goh Itoh

Goh Itoh has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20070211000
    Abstract: There is provided with an apparatus for image processing for displaying an image on a dot matrix type display device having a plurality of display elements each emitting single light, including: an image input unit configured to input an input image having pixels each including one or more color components; an image feature extraction unit configured to extract a feature of the input image; a filter processor configured to generate K subfield images by performing a filter process using K filters for the input image of one frame; a display order setting unit configured to set a display order of the K subfield images based on the feature of the input image; and an image display control unit configured to display the K subfield images in accordance with the display order on the display device in one frame period of the input image.
    Type: Application
    Filed: March 8, 2007
    Publication date: September 13, 2007
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Goh Itoh, Kazuyasu Ohwaki
  • Patent number: 7256836
    Abstract: There is provided an image processing method capable of improving the picture quality. The image processing method comprises: incorporating input frame pictures to be displayed on a display device, on the basis of an input picture signal and an input synchronizing signal which is synchronized with the input picture signal; recording the incorporated input frame pictures in an input frame memory; and producing output frame pictures from input frame pictures, which have been recorded in the input frame memory, by producing an interpolated picture or inserting a black raster picture or thinning out the frame pictures, between input frame pictures corresponding to a picture information of the input frame picture to be displayed, on the basis of the picture information and the input synchronizing signal and an output synchronizing signal.
    Type: Grant
    Filed: October 22, 2004
    Date of Patent: August 14, 2007
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Goh Itoh, Haruhiko Okumura
  • Publication number: 20070182700
    Abstract: A liquid crystal panel for displaying an input image and a black image during one frame period, a target black display period ratio calculating unit configured to obtain a black image display period occupying one frame period of the input image, a black display period ratio change amount calculating unit configured to obtain the amount of change in ratio of black display period for each of one or a plurality of frames, a black display period ratio determining unit configured to calculate the ratio of black display period for an actual display, a black display period control unit configured to control a period for displaying the input image and the black image on the image display unit, and a display luminance control unit configured to restrain variations in luminance of the image display unit during one frame period within a predetermined range are provided.
    Type: Application
    Filed: January 5, 2007
    Publication date: August 9, 2007
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Masahiro Baba, Goh Itoh
  • Publication number: 20070165719
    Abstract: A motion vector detection method includes extracting a first block from the m-th picture, extracting second blocks having a large correlation with respect to the first block from a (m+n)-th picture ((m+n) >m-th), detecting first motion vectors between the first and second blocks, extracting a third block located in spatially the same position as that of the first block from a (m+i)-th picture ((m+n) >(m+i) >m-th), computing second motion vectors of (n?l)/n times the first motion vectors, extracting a fourth block corresponding to a movement position of the third block from the (m+n)-th picture according to the second motion vector, and selecting an optimum motion vector maximizing a correlation between the third and fourth blocks from the first motion vectors.
    Type: Application
    Filed: March 15, 2007
    Publication date: July 19, 2007
    Inventors: Goh Itoh, Nao Mishima, Haruhiko Okumura
  • Publication number: 20070153903
    Abstract: A motion vector detection method includes extracting a first block from the m-th picture, extracting second blocks having a large correlation with respect to the first block from a (m+n)-th picture ((m+n)>m-th), detecting first motion vectors between the first and second blocks, extracting a third block located in spatially the same position as that of the first block from a (m+i)-th picture ((m+n)>(m+i)>m-th), computing second motion vectors of (n?1)/n times the first motion vectors, extracting a fourth block corresponding to a movement position of the third block from the (m+n)-th picture according to the second motion vector, and selecting an optimum motion vector maximizing a correlation between the third and fourth blocks from the first motion vectors.
    Type: Application
    Filed: March 15, 2007
    Publication date: July 5, 2007
    Inventors: Goh Itoh, Nao Mishima, Haruhiko Okumura
  • Publication number: 20070153904
    Abstract: A motion vector detection method includes extracting a first block from the m-th picture, extracting second blocks having a large correlation with respect to the first block from a (m+n)-th picture ((m+n)>m-th), detecting first motion vectors between the first and second blocks, extracting a third block located in spatially the same position as that of the first block from a (m+i)-th picture ((m+n)>(m+i)>m-th), computing second motion vectors of (n?1)/n times the first motion vectors, extracting a fourth block corresponding to a movement position of the third block from the (m+n)-th picture according to the second motion vector, and selecting an optimum motion vector maximizing a correlation between the third and fourth blocks from the first motion vectors.
    Type: Application
    Filed: March 15, 2007
    Publication date: July 5, 2007
    Inventors: Goh Itoh, Nao Mishima, Haruhiko Okumura
  • Publication number: 20070071296
    Abstract: A radiographic image processing apparatus includes a radiographic image inputting unit, an intermediate image generating unit, a large object image generating unit, and a small object image generating unit. The radio graphic image inputting unit inputs a radiographic image which is a frame of moving picture taken radiographically. The intermediate image generating unit generates an intermediate image whose pixel value is a maximum pixel value of pixels within each area of a first size in a radiographic image. The large object image generating unit generates a large object image whose pixel value is a minimum pixel value of pixels within each area of a second size in the intermediate image. The small object image generating unit generates a small object image whose pixel value is a difference between pixel value of the radiographic image and pixel value of the large object image corresponding to each pixel of the radiographic image.
    Type: Application
    Filed: March 20, 2006
    Publication date: March 29, 2007
    Inventors: Ryosuke Nonaka, Goh Itoh
  • Publication number: 20070057960
    Abstract: An image has pixels arranged in ((M lines)×(N columns)) each pixel having color information. A display has elements arranged in ((P lines)×(Q columns), 1<P<M, 1<Q<N). The image is separated into a first component and a second component based on a threshold. The first component has a spatial frequency not lower than the threshold. The second component has a spatial frequency lower than the threshold. The threshold is a ratio of the number of the elements to the number of the pixels. A plurality of first display components is generated from the first component by filter processing using a plurality of filters. A second display component is generated from the second component by filter processing. A plurality of sub-field images is generated by composing each of the plurality of first display components with the second display component. Each element of the display is driven using the color information of a pixel corresponding to the element in pixels of each of the plurality of sub-field images.
    Type: Application
    Filed: July 17, 2006
    Publication date: March 15, 2007
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Goh Itoh, Kazuyasu Ohwaki
  • Publication number: 20070040779
    Abstract: An image processing method for a liquid crystal display device includes: calculating first difference gradation, which is a difference between predicted attainment gradation and input gradation, the predicted attainment gradation being a predicted value of gradation which respective pixels of the liquid crystal display attain after one frame period after the respective pixels are driven to display a first frame, and the predicted attainment gradation being stored in a storage unit which stores the predicted attainment gradation, and the input gradation being gradation of a second frame which is displayed after the first frame; multiplying the first difference gradation by an enhancement coefficient; calculating enhanced gradation which is a sum of the first difference gradation multiplied by the enhancement coefficient and the predicted attainment gradation; calculating second difference gradation which is a difference between the enhanced gradation and the predicted attainment gradation; multiplying the seco
    Type: Application
    Filed: March 10, 2006
    Publication date: February 22, 2007
    Inventors: Masahiro Baba, Goh Itoh, Haruhiko Okumura
  • Publication number: 20070041658
    Abstract: An image matching apparatus for obtaining a correspondence relationship between a source image and a destination image, includes an potential force calculator that calculates potential energy based on a correlating relationship of images between each first lattice point on the source image and each second lattice point corresponding one-to-one to the first lattice point on the destination image, and calculates potential force that the second lattice points receives by gradient of the potential energy based on a position of each second lattice point and a position of each first lattice point corresponding to the second lattice point. The potential force calculator sets the potential force calculated last time to the potential force of this time with respect to the second lattice points determined not to execute the calculation process of the potential force.
    Type: Application
    Filed: March 14, 2006
    Publication date: February 22, 2007
    Inventors: Nao Mishima, Goh Itoh, Masahiro Baba
  • Patent number: 7180548
    Abstract: A method of generating an interpolation image includes inputting a first reference image, a second reference image and a third reference image of a video signal that continue in terms of time, generating a first interpolation image corresponding to a position of the second reference image from the first reference image and the third reference image, computing a correlation value expressing a correlation level between the second reference image and the first interpolation image, generating a second interpolation image corresponding to an interpolation position between the second reference image and the third reference image, and interposing the second interpolation image in the interpolation position when the correlation value is more than a threshold.
    Type: Grant
    Filed: March 25, 2004
    Date of Patent: February 20, 2007
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Nao Mishima, Kazuyasu Oowaki, Goh Itoh
  • Publication number: 20070008277
    Abstract: An image data processing apparatus divides image data into a plurality of pixel data including a set of pixel data corresponding to a set of signal lines of a display device selectively controlled by an element, and stores the divided image data. Corresponding to one of the divided plurality of image data, one of the stored plurality of pixel data is selected to generate differential data.
    Type: Application
    Filed: April 14, 2006
    Publication date: January 11, 2007
    Inventors: Haruhiko Okumura, Goh Itoh, Masahiro Baba, Masaki Miyatake
  • Publication number: 20060256238
    Abstract: A first motion vector is estimated by using a first frame and a second frame that follows the first frame. A support frame is generated from at least either the first or the second frame by using the first motion vector. The support frame is divided into a plurality of small blocks. Motion vector candidates are estimated by using the first and second frames, in relation to each of the small blocks. A small block on the first frame, a small block on the second frame and the small blocks on the support frame are examined. The small block on the first frame and the small block on the second frame correspond to each of the motion vector candidates. A second motion vector is selected from the motion vector candidates, and points the small block on the first frame and the small block on the second frame which have the highest correlation with each of the small blocks on the support frame. An interpolated frame is generated from at least either the first or the second frame by using the second motion vector.
    Type: Application
    Filed: July 21, 2006
    Publication date: November 16, 2006
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Nao Mishima, Goh Itoh
  • Publication number: 20060222077
    Abstract: A method for generating an interpolation frame between first and second reference frames includes dividing an interpolation frame into several interpolation areas; detecting a most correlated combination from several combinations between first reference areas and second reference areas for each interpolation area; obtaining a motion vector from the first and second reference areas; determining whether the first reference areas and the second reference areas are in a high-correlated area or a low-correlated area; giving the motion vector to the motion vector detected area, the motion vector detected area corresponding to the interpolation area which is determined to be the high-correlated area in the first and second reference areas; determining a motion vector to be given to the motion vector undetected area; and generating the interpolation frame based on the motion vector given to the motion vector detected area and the motion vector determined for the motion vector undetected area.
    Type: Application
    Filed: March 7, 2006
    Publication date: October 5, 2006
    Inventors: Kazuyasu Ohwaki, Goh Itoh, Nao Mishima
  • Patent number: 7106350
    Abstract: A liquid crystal display method to display an image according to an image signal, comprises changing a ratio of a display period and a non-display period of the image according to the image signal.
    Type: Grant
    Filed: July 6, 2001
    Date of Patent: September 12, 2006
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masahiro Baba, Goh Itoh, Hitoshi Kobayashi, Haruhiko Okumura, Hajime Yamaguchi, Rei Hasegawa
  • Publication number: 20060193535
    Abstract: An image matching method includes setting first and second lattices to first and second images respectively, computing potential force to each second lattice point of the second lattice by a gradient of an image correlation potential energy based on a position of each first lattice point and pixel thereof and a position of the second lattice point and pixel thereof, computing elasticity force to the second lattice point from elasticity energy between the second and adjacent lattice points, computing frictional force occurring at the second lattice point, performing a numerical analysis of an equation of motion regarding the second lattice point and based on the potential force, elasticity force and frictional force to obtain a convergence state of the second lattice points, and adding a new lattice point between an adjacent lattice point pair of second lattice points according to a distance between the adjacent lattice point pair.
    Type: Application
    Filed: February 16, 2006
    Publication date: August 31, 2006
    Inventors: Nao Mishima, Goh Itoh, Masahiro Baba
  • Patent number: 7098959
    Abstract: A first motion vector is estimated by using a first frame and a second frame that follows the first frame. A support frame is generated from at least either the first or the second frame by using the first motion vector. The support frame is divided into a plurality of small blocks. Motion vector candidates are estimated by using the first and second frames, in relation to each of the small blocks. A small block on the first frame, a small block on the second frame and the small blocks on the support frame are examined. The small block on the first frame and the small block on the second frame correspond to each of the motion vector candidates. A second motion vector is selected from the motion vector candidates, and points the small block on the first frame and the small block on the second frame which have the highest correlation with each of the small blocks on the support frame. An interpolated frame is generated from at least either the first or the second frame by using the second motion vector.
    Type: Grant
    Filed: September 9, 2003
    Date of Patent: August 29, 2006
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Nao Mishima, Goh Itoh
  • Publication number: 20060170616
    Abstract: A 3D image reproduction apparatus including a display and an optical system is described. The display includes a screen on which a plurality of pixels are arranged to display synthesis parallax images in units of arrayed sub regions. Each of the pixels includes three sub pixels that differ in color, and the sub pixels are laid out so that adjacent sub pixels differ in color. The optical system arranged in front of the screen of the display, forms a 3D image from synthesis parallax images displayed on the screen in units of arrayed sub regions.
    Type: Application
    Filed: July 8, 2003
    Publication date: August 3, 2006
    Inventors: Yuzo Hirayama, Kazuki Taira, Hajime Yamaguchi, Rieko Fukushima, Hitoshi Kobayashi, Goh Itoh
  • Patent number: 6970148
    Abstract: An image display method including dividing an original image for one frame period into a plurality of subfield images, arranging the subfield images in a direction of a time axis in an order of brightness of the subfield images, and displaying the arranged subfield images in the order of the brightness.
    Type: Grant
    Filed: July 9, 2002
    Date of Patent: November 29, 2005
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Goh Itoh, Masahiro Baba, Kazuki Taira, Haruhiko Okumura
  • Patent number: 6930752
    Abstract: An image processing method includes: discriminating between a still picture area and a motion picture area in an input image; enhancing edges with a quantity of edge enhancement larger in the motion picture area than in the still picture area; and outputting the input image having the enhanced edges. The output having the enhanced edges is displayed on a display unit.
    Type: Grant
    Filed: July 29, 2003
    Date of Patent: August 16, 2005
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masahiro Baba, Goh Itoh