Patents by Inventor Kosuke Yamaoka

Kosuke Yamaoka 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).

  • Image segmentation apparatus and image segmentation method
    Patent number: 7853075
    Abstract: A pixel-value detecting circuit (1) detects RGB values of each pixel of an input image and outputs the detected RGB values to a connection weight determining circuit (2). When both of two adjacent pixels have achromatic color, the connection weight determining circuit (2) determines a first connection weight, which is a connection weight between the two pixels, by using only the RGB values. When one of the two pixels has achromatic color, the connection weight determining circuit (2) determines, as a connection weight, a second connection weight that is smaller than the first connection weight, by using the RGB values and saturations. When both of the two pixels have chromatic color, the connection weight determining circuit (2) determines, as a connection weight, a third connection weight that is greater than or equal to the first connection weight, by using the RGB values and hues.
    Type: Grant
    Filed: July 31, 2008
    Date of Patent: December 14, 2010
    Assignee: Hiroshima University
    Inventors: Hans Juergen Mattausch, Tetsushi Koide, Kosuke Yamaoka
  • IMAGE SEGMENTATION APPARATUS AND IMAGE SEGMENTATION METHOD
    Publication number: 20100202684
    Abstract: A pixel-value detecting circuit (1) detects RGB values of each pixel of an input image and outputs the detected RGB values to a connection weight determining circuit (2). When both of two adjacent pixels have achromatic color, the connection weight determining circuit (2) determines a first connection weight, which is a connection weight between the two pixels, by using only the RGB values. When one of the two pixels has achromatic color, the connection weight determining circuit (2) determines, as a connection weight, a second connection weight that is smaller than the first connection weight, by using the RGB values and saturations. When both of the two pixels have chromatic color, the connection weight determining circuit (2) determines, as a connection weight, a third connection weight that is greater than or equal to the first connection weight, by using the RGB values and hues.
    Type: Application
    Filed: July 31, 2008
    Publication date: August 12, 2010
    Inventors: Hans Juergen Mattausch, Tetsushi Koide, Kosuke Yamaoka