Patents by Inventor Vijayakumar Nagarajan

Vijayakumar Nagarajan 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).

  • System and method for sub-pixel interpolation in motion vector estimation
    Patent number: 7792192
    Abstract: A sub-pixel interpolation technique is provided for motion vector estimation during video coding. In one embodiment, this is accomplished by interpolating adjacent pixels at fractional horizontal, vertical, and diagonal locations in a macroblock of (M×N) pixels, such that there are no overlapping interpolations, to generate values for sub-pixels associated with the macroblock of (M×N) pixels.
    Type: Grant
    Filed: November 19, 2004
    Date of Patent: September 7, 2010
    Assignee: Analog Devices, Inc.
    Inventor: Vijayakumar Nagarajan
  • System and method for sub-pixel interpolation in motion vector estimation
    Publication number: 20060109910
    Abstract: The present invention provides an efficient sub-pixel interpolation technique for motion vector estimation during video coding. In one embodiment, this is accomplished by interpolating adjacent pixels at fractional horizontal, vertical, and diagonal locations in a macroblock of (M×N) pixels, such that there are no overlapping interpolations, to generate values for sub-pixels associated with the macroblock of (M×N) pixels.
    Type: Application
    Filed: November 19, 2004
    Publication date: May 25, 2006
    Inventor: Vijayakumar Nagarajan