Patents by Inventor Katsuto Sakamoto

Katsuto Sakamoto 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 and apparatus for detecting local features of video, and recording medium storing the method
    Patent number: 7184593
    Abstract: A method of detecting local features of video which includes the steps of: extracting a first static image and a second static image from a video made up of a plurality of static images; calculating a feature quantity of the first static image and a feature quantity of the second static image; detecting the second static image having a feature quantity such that a difference in feature quantity between the first static image and the second static image satisfies a predetermined condition; and displaying the second static image thus detected and the feature quantity difference in one-to-one correspondence.
    Type: Grant
    Filed: July 26, 2005
    Date of Patent: February 27, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Katsuto Sakamoto, Junichi Hatooka, Hirokazu Amemiya, Mitsuteru Omata, Yoshinobu Hagihara, Toshihide Saga
  • Method and apparatus for detecting local features of video, and recording medium storing the method
    Publication number: 20050254711
    Abstract: A method of detecting local features of video which includes the steps of: extracting a first static image and a second static image from a video made up of a plurality of static images; calculating a feature quantity of the first static image and a feature quantity of the second static image; detecting the second static image having a feature quantity such that a difference in feature quantity between the first static image and the second static image satisfies a predetermined condition; and displaying the second static image thus detected and the feature quantity difference in one-to-one correspondence.
    Type: Application
    Filed: July 26, 2005
    Publication date: November 17, 2005
    Inventors: Katsuto Sakamoto, Junichi Hatooka, Hirokazu Amemiya, Mitsuteru Omata, Yoshinobu Hagihara, Toshihide Saga
  • Method and apparatus for detecting local features of video, and recording medium storing the method
    Patent number: 6937764
    Abstract: A method of detecting local features of video which includes the steps of: extracting a first static image and a second static image from a video made up of a plurality of static images; calculating a feature quantity of the first static image and a feature quantity of the second static image; detecting the second static image having a feature quantity such that a difference in feature quantity between the first static image and the second static image satisfies a predetermined condition; and displaying the second static image thus detected and the feature quantity difference in one-to-one correspondence.
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: August 30, 2005
    Assignee: Hitachi, Ltd.
    Inventors: Katsuto Sakamoto, Junichi Hatooka, Hirokazu Amemiya, Mitsuteru Omata, Yoshinobu Hagihara, Toshihide Saga
  • Method and appartus for detecting local features of video, and recording medium storing the method
    Publication number: 20040046895
    Abstract: A method of detecting local features of video which includes the steps of: extracting a first static image and a second static image from a video made up of a plurality of static images; calculating a feature quantity of the first static image and a feature quantity of the second static image; detecting the second static image having a feature quantity such that a difference in feature quantity between the first static image and the second static image satisfies a predetermined condition; and displaying the second static image thus detected and the feature quantity difference in one-to-one correspondence.
    Type: Application
    Filed: August 28, 2003
    Publication date: March 11, 2004
    Inventors: Katsuto Sakamoto, Junichi Hatooka, Hirokazu Amemiya, Mitsuteru Omata, Yoshinobu Hagihara, Toshihide Saga