Patents Assigned to Telecommunications Advancement Organization of Japan
  • Patent number: 7305033
    Abstract: The present invention discloses a method of encoding and decoding motion picture, a motion picture encoding device and a motion picture decoding device, which enables high-efficiency coding capable of avoiding the occurrence of any block distortion. According to the present invention, motion estimation and motion compensation are performed based on patches divided according to the textural characteristics, in combination with global motion compensation of unpredicted regions for unintentional non-prediction, which partially changes between the key frames to deal with double-image or frame-out problems.
    Type: Grant
    Filed: October 15, 2003
    Date of Patent: December 4, 2007
    Assignees: Telecommunications Advancement Organization of Japan, Victor Company of Japan
    Inventor: Kunio Yamada
  • Publication number: 20040263638
    Abstract: In a color reproduction system, under constraint conditions where colorimetric values of a subject spectrum, calculated by a colorimetric-value calculation unit (21), match colorimetric values of a display spectrum of a six-primary-color display (3), a signal calculation unit (22) calculates display signals such that squared errors between the subject spectrum and the display spectrum are minimized within the gamut of the remaining degree of freedom by using Lagrange's method of undetermined coefficients or the reduced gradient method.
    Type: Application
    Filed: April 21, 2004
    Publication date: December 30, 2004
    Applicants: Telecommunications Advancement Organization of Japan, Olympus Corporation
    Inventors: Kenro Ohsawa, Masahiro Yamaguchi, Nagaaki Ohyama
  • Publication number: 20040257447
    Abstract: A color image reproduction system includes: a six-band camera (1) for generating a color video signal; a six-primary-color display (3) for receiving display-signal video data to display an image; and a video converter (2) for converting the color video signal into the display-signal video data using an input profile of the six-band camera (1) and an output profile of the six-primary-color display (3). An input profile assembly of the six-band camera (1) and an output profile assembly of the six-primary-color display (3) each include profile data corresponding to respective frames of an image.
    Type: Application
    Filed: April 12, 2004
    Publication date: December 23, 2004
    Applicant: Telecommunications Advancement Organization of Japan
    Inventors: Kenro Ohsawa, Hideto Motomura
  • Patent number: 6792043
    Abstract: An apparatus for retrieving moving image according to the present invention has an extracting unit for extracting the information of the feature quantity of the moving image from the fixed moving image data, an extracting unit for extracting the information of the unique identification of the moving image to identify the moving image according to the information of the feature quantity of the moving image, and a retrieving unit for retrieving and identifying the fixed moving image from the object moving image for retrieving by comparing the information of the unique identification of the moving image with the information of the unique identification of the moving image beforehand extracted from the object moving image.
    Type: Grant
    Filed: October 20, 1999
    Date of Patent: September 14, 2004
    Assignees: Telecommunications Advancement Organization of Japan, Matsushita Electric Industrial Co., Ltd.
    Inventors: Katsunao Takahashi, Nobuyoshi Terashima, Hideyoshi Tominaga
  • Patent number: 6724993
    Abstract: An optical transmitter-receiver that does not have a harmful effect on the human eye when an optical fiber is disconnected from the apparatus and is able to determine easily when the fiber has been reconnected. A normal signal detector and a dummy signal detector determine when a signal from another optical transmitter-receiver is no longer received due to disconnection of an optical fiber. This result switches an output switch and causes a second reference voltage to be transmitted to an optical output automatic controller, thereby reducing the power of a laser diode. At the same time, a signal switch provides a dummy signal having a low frequency to the laser diode in place of the normal signal, resulting in output of a dummy optical signal. At this time, the other optical transmitter-receiver also outputs a dummy optical signal. When the optical fiber is reconnected, the dummy signal transmitted from the other optical transmitter-receiver is detected.
    Type: Grant
    Filed: January 29, 2001
    Date of Patent: April 20, 2004
    Assignee: Telecommunications Advancement Organization of Japan
    Inventors: Yasuhiro Koike, Takeshi Ota
  • Patent number: 5926575
    Abstract: A processing of causing a face image of a person A as an object of encoding to be deformed in correspondence to expression and motion of a face image of a person B as a reference image. The expression change and the motion from the model wire-frame are treated as fitting information, and this fitting information is made WA1 with respect to a first image of an object for photographing, while is made Wb1 with respect to a second image of an object for photographing. For example, the fitting information from a model wire-frame W00 to an image A1 is Wa1, and the fitting information from the image A1 to the model wire-frame W00 is Wa1. Next, an image A2 into which the first image A1 is caused to be deformed by a texture Ta1 of the first image A1 and a wire-frame function Wb1 Wa1 is obtained through composition.
    Type: Grant
    Filed: November 7, 1996
    Date of Patent: July 20, 1999
    Assignees: Telecommunications Advancement Organization of Japan, Kabushiki Kaisha Toshiba
    Inventors: Kazuo Ohzeki, Hiroshi Harashima, Masahide Kaneko, Takahiro Saito
  • Patent number: 5694235
    Abstract: Upon picking up an image, light beams passing through a focal point of an image-forming lens are directed to an optical detector array comprising a plurality of optical detectors. Each optical detector selectively receives a light beam passing through the focal point with a particular different angle. By two-dimensionally scanning the focal point at a high speed by the use of a polygonal mirror and a vertical scanning section, a parallactic image of an object placed at a pickup/display position is picked up at a particular angle. Upon display, the parallactic image taken in a particular direction is projected from each light source of a light source array to the focal point. The focal point is two-dimensionally scanned at a high speed so that a stereoscopic image is displayed on the pickup/display position.
    Type: Grant
    Filed: March 7, 1996
    Date of Patent: December 2, 1997
    Assignees: Telecommunications Advancement Organization of Japan, NEC Corporation
    Inventor: Yoshihiro Kajiki