Patents by Inventor Takeshi Nagayama

Takeshi Nagayama 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).

  • Patent number: 5920654
    Abstract: In an image processing system, an outline correction of image data and a smoothing for noise removal are performed. Generally, the outline correction is performed by emphasizing a high frequency component, and the smoothing is performed by removing the high frequency component. Within one image data, by properly switching the emphasizing and the removal of the high frequency component, while the outline correction is carried out, the noise removal can be performed. An absolute value of a high frequency component Fa extracted from the image data Pi by a first differential filter is compared with a discrimination threshold value K, and depending on the comparison result, either Fa or -Fa as the correction data Fo is selected by a selector and is added to the image data Pi. As a result, when Fo=Fa, the high frequency component is emphasized, and when Fo=-Fa, smoothing is performed. A pixel interpolation and a multi picture formation are also disclosed.
    Type: Grant
    Filed: December 14, 1995
    Date of Patent: July 6, 1999
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Jun Someya, Kazuhiro Chiba, Kazuyoshi Watabu, Yoshie Yamamoto, Mamoru Inamura, Takeshi Nagayama, Noriko Bamba, Noboru Sunada
  • Patent number: 5550936
    Abstract: In an image processing system, an outline correction of image data and a smoothing for noise removal are performed. Generally, the outline correction is performed by emphasizing a high frequency component, and the smoothing is performed by removing the high frequency component. Within one image data, by properly switching the emphasizing and the removal of the high frequency component, while the outline correction is carried out, the noise removal can be performed. An absolute value of a high frequency component Fa extracted from the image data Pi by a first differential filter is compared with a discrimination threshold value K, and depending on the comparison result, either Fa or -Fa as the correction data Fo is selected by a selector and is added to the image data Pi. As a result, when Fo=Fa, the high frequency component is emphasized, and when Fo=-Fa, smoothing is performed. A pixel interpolation and a multi picture formation are also disclosed.
    Type: Grant
    Filed: May 6, 1994
    Date of Patent: August 27, 1996
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Jun Someya, Kazuhiro Chiba, Kazuyoshi Watabu, Yoshie Yamamoto, Mamoru Inamura, Takeshi Nagayama, Noriko Bamba, Noboru Sunada
  • Patent number: D607532
    Type: Grant
    Filed: February 11, 2009
    Date of Patent: January 5, 2010
    Assignee: Daiwa Seiko, Inc.
    Inventors: Wataru Tsutsumi, Takeshi Nagayama
  • Patent number: D695379
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: December 10, 2013
    Assignee: Globeride, Inc.
    Inventors: Shuta Kano, Takeshi Nagayama, Daisuke Higuchi
  • Patent number: D731613
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: June 9, 2015
    Assignee: Globeride, Inc.
    Inventors: Shuta Kano, Takeshi Nagayama, Masakazu Noguchi, Daisuke Higuchi