Patents by Inventor Kazu Segawa

Kazu Segawa 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: 20110210970
    Abstract: A digital mirror apparatus that can reduce the uncomfortable feeling that the user who works while watching the displayed image feels in the horizontal direction and that can reduce the stress on the user. The digital mirror apparatus (100) for displaying an image of a user, which includes a posture identifying unit (102) which determines whether or not an image to be displayed is to be an image of a back of the user, and to generate posture information indicating a result of the determination, an image generating unit (103) which generates the image to be displayed by rendering three-dimensional model data of the user, and a display unit (104) which displays the image generated by the image generating unit (103), and the image generating unit (103) generates, as the image to be displayed, one of an image including a left-right reversed user image and an image including a left-right non-reversed user image, according to the posture information generated by the posture identifying unit (102).
    Type: Application
    Filed: June 16, 2009
    Publication date: September 1, 2011
    Inventor: Kazu Segawa
  • Patent number: 7212205
    Abstract: A curved surface image processing apparatus 100 according to the present invention that can render an object at higher speed and in higher quality by performing image processing using NURBS data includes: a data input unit 101 for receiving NURBS data; a coordinate transformation unit 102 for performing coordinate transformation on NURBS data; an animation control unit 103 for controlling animation data of each frame to be rendered; a data transformation unit 104 for transforming NURBS data into rational Bezier data; a patch division unit 105 for subdividing a rational Bezier surface patch; a normal determination unit 106 for calculating normals of control points of a divided surface patch; a perspective transformation unit 107 for performing perspective transformation on a divided surface patch; and a rendering unit 108 for rendering a surface patch.
    Type: Grant
    Filed: November 10, 2003
    Date of Patent: May 1, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Akira Uesaki, Akio Nishimura, Tadashi Kobayashi, Yoshiyuki Mochizuki, Kazu Segawa, Makoto Yamakura, Kazutaka Nishio, Hitoshi Araki, Kenji Nishimura
  • Publication number: 20040090437
    Abstract: A curved surface image processing apparatus 100 according to the present invention that can render an object at higher speed and in higher quality by performing image processing using NURBS data includes: a data input unit 101 for receiving NURBS data; a coordinate transformation unit 102 for performing coordinate transformation on NURBS data; an animation control unit 103 for controlling animation data of each frame to be rendered; a data transformation unit 104 for transforming NURBS data into rational Bezier data; a patch division unit 105 for subdividing a rational Bezier surface patch; a normal determination unit 106 for calculating normals of control points of a divided surface patch; a perspective transformation unit 107 for performing perspective transformation on a divided surface patch; and a rendering unit 108 for rendering a surface patch.
    Type: Application
    Filed: November 10, 2003
    Publication date: May 13, 2004
    Inventors: Akira Uesaki, Akio Nishimura, Tadashi Kobayashi, Yoshiyuki Mochizuki, Kazu Segawa, Makoto Yamakura, Kazutaka Nishio, Hitoshi Araki, Kenji Nishimura
  • Patent number: 5761401
    Abstract: An apparatus for parallel image generation has four geometric data buffers for storing four partial geometric data, respectively, and four image generators connected respectively to the four geometric data buffers. Each image generator generates a partial image data for every pixel in a frame. Further provided are four image mergers connected respectively to the four image generators. The four image mergers are also connected in series. An initial image generator for generating a background image is connected to the first image merger for merging the background image data and the partial image data from the first image generator. Each of the second to fourth image merger merges an output merged data from the previous image merger and the partial image data from the corresponding image generator.
    Type: Grant
    Filed: December 4, 1995
    Date of Patent: June 2, 1998
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tadashi Kobayashi, Akio Nishimura, Yorihiko Wakayama, Kiyoshi Maenobu, Kazu Segawa, Makoto Hirai, Kenji Nishimura, Toshiya Naka, Jiro Minehisa, Minobu Abe