Patents by Inventor Alberto Tomita, Jr.

Alberto Tomita, Jr. 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).

  • Extraction and tracking of image regions arranged in time series
    Patent number: 7492944
    Abstract: Methods and apparatus for effectively identifying the occlusion of objects, such as persons, having a high degree of freedom. In an example embodiment, after initialization, an image is input, and an image region is extracted from image data. The distance is employed that is obtained when the shape of a two-dimensional histogram in the color space is transformed into the feature space. A graph is formed by using the regions between the frames. A confidence factor is provided and image features are provided as weights to the edges that connect the nodes. Processing is performed and the confidence factor is examined. A connection judged less possible to be a path is removed. When there is only one available connection for the occlusion point, this connection is selected.
    Type: Grant
    Filed: July 17, 2006
    Date of Patent: February 17, 2009
    Assignee: International Business Machines Corporation
    Inventors: Ajith Kumar Narayanan, Alberto Tomita, Jr., Takaaki Murao, Tomio Echigo
  • Image processing method, image processing system and storage medium therefor
    Patent number: 7251364
    Abstract: Methods and apparatus for effectively identifying the occlusion of objects, such as persons, having a high degree of freedom. In an example embodiment, after initialization, an image is input, and an image region is extracted from image data. The distance is employed that is obtained when the shape of a two-dimensional histogram in the color space is transformed into the feature space. A graph is formed by using the regions between the frames. A confidence factor is provided and image features are provided as weights to the edges that connect the nodes. Processing is performed and the confidence factor is examined. A connection judged less possible to be a path is removed. When there is only one available connection for the occlusion point, this connection is selected.
    Type: Grant
    Filed: September 12, 2001
    Date of Patent: July 31, 2007
    Assignee: International Business Machines Corporation
    Inventors: Alberto Tomita, Jr., Takaaki Murao, Tomio Echigo