Patents by Inventor Norishiqe Morimoto

Norishiqe Morimoto 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 processing apparatus and method therefor
    Patent number: 7046817
    Abstract: It is one object of the present invention to prevent embedded verification information from being lost even when a quantization process is performed after verification information has been embedded. A pre-embedding portion 32 converts a image data value so that quantized values not changing by error introduced through the embedding process. A hash value calculator 300 calculates a hash value using image data and key information, and a hash value embedding portion 302 embeds the hash value in the image data. An output format converter 304 quantizes the image data in which the hash value is embedded, and generates JPEG data.
    Type: Grant
    Filed: January 18, 2001
    Date of Patent: May 16, 2006
    Assignee: International Business Machines Corporation
    Inventors: Kohichi Kamijoh, Norishiqe Morimoto, Satoko Tonegawa
  • Image processing apparatus and method therefor
    Publication number: 20010010729
    Abstract: It is one object of the present invention to prevent embedded verification information from being lost even when a quantization process is performed after verification information has been embedded. A pre-embedding portion 32 converts a image data value so that quantized values not changing by error introduced through the embedding process. A hash value calculator 300 calculates a hash value using image data and key information, and a hash value embedding portion 302 embeds the hash value in the image data. An output format converter 304 quantizes the image data in which the hash value is embedded, and generates JPEG data.
    Type: Application
    Filed: January 18, 2001
    Publication date: August 2, 2001
    Inventors: Kohichi Kamijoh, Norishiqe Morimoto, Satoko Tonegawa