Patents by Inventor Otsu Makoto

Otsu Makoto 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).

  • Method of separated color foreground and background pixel improvement
    Patent number: 6701009
    Abstract: A method for separating foreground and background image pixels from other pixels. The method determines if a current pixel is an edge pixel, and then selects a window of pixels surrounding the current pixel if it is on an edge. This window is then analyzed to produce a classification of a gradient field within the window, and defines foreground and background image pixel values depending upon the classification. Once foreground and background pixel positions are defined, the process interpolates the value for the current pixel. The accurate designation of foreground and background pixels eliminates or mitigates any color misregistration error in the pixel value.
    Type: Grant
    Filed: June 6, 2000
    Date of Patent: March 2, 2004
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: Otsu Makoto, William Ho Chang