Patents by Inventor Bhaskar Dey

Bhaskar Dey 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).

  • Foreground motion detection in compressed video data
    Patent number: 9712828
    Abstract: Technologies are generally described to identify foreground motion detection in compressed video data. In some examples, a foreground motion detection module may determine transform-coefficient-magnitude sums and motion-vector-magnitude sums associated with block coding units (BCUs) in compressed video data without decompressing the video data. The foreground motion detection module may also determine a background mean and a background co-variance associated with the compressed video data. To determine whether the BCU(s) contain foreground motion, the foreground motion detection module may determine a statistic based on the transform-coefficient-magnitude sums, the motion-vector magnitude sums, the background mean, and the background co-variance and compare the statistic to a threshold.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: July 18, 2017
    Assignee: INDIAN STATISTICAL INSTITUTE
    Inventors: Bhaskar Dey, Malay Kumar Kundu
  • FOREGROUND MOTION DETECTION IN COMPRESSED VIDEO DATA
    Publication number: 20160350934
    Abstract: Technologies are generally described to identify foreground motion detection in compressed video data. In some examples, a foreground motion detection module may determine transform-coefficient-magnitude sums and motion-vector-magnitude sums associated with block coding units (BCUs) in compressed video data without decompressing the video data. The foreground motion detection module may also determine a background mean and a background co-variance associated with the compressed video data. To determine whether the BCU(s) contain foreground motion, the foreground motion detection module may determine a statistic based on the transform-coefficient-magnitude sums, the motion-vector magnitude sums, the background mean, and the background co-variance and compare the statistic to a threshold.
    Type: Application
    Filed: July 23, 2015
    Publication date: December 1, 2016
    Inventors: Bhaskar Dey, Malay Kumar Kundu