Patents by Inventor Aditya Vashistha

Aditya Vashistha 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).

  • Patent number: 8947600
    Abstract: A method, system and computer-readable media for detecting scene changes in a video that includes providing by one or more computing devices a plurality of passes through the video where a plurality of detected scenes from a first pass in a conventional method are identified and a second pass through the detected scenes are provided by the computing device. A plurality of scene boundary differences corresponding to the detected scenes, a fixed average, and a varying average are computed by the computing device. The scene boundary difference is compared with the fixed average and the varying average and if the scene boundary difference is less than the fixed average and the varying average, the detected scenes are combined else the detected scene being an abrupt scene change is determined. The steps of computing a varying average to combining the detected scenes are repeated by the computing device.
    Type: Grant
    Filed: November 3, 2011
    Date of Patent: February 3, 2015
    Assignee: Infosys Technologies, Ltd.
    Inventors: Aditya Vashistha, Rajarathnam Nallusamy, Sanjoy Paul
  • Publication number: 20130113999
    Abstract: A method, system and computer-readable media for detecting scene changes in a video that includes providing by one or more computing devices a plurality of passes through the video where a plurality of detected scenes from a first pass in a conventional method are identified and a second pass through the detected scenes are provided by the computing device. A plurality of scene boundary differences corresponding to the detected scenes, a fixed average, and a varying average are computed by the computing device. The scene boundary difference is compared with the fixed average and the varying average and if the scene boundary difference is less than the fixed average and the varying average, the detected scenes are combined else the detected scene being an abrupt scene change is determined. The steps of computing a varying average to combining the detected scenes are repeated by the computing device.
    Type: Application
    Filed: November 3, 2011
    Publication date: May 9, 2013
    Applicant: INFOSYS TECHNOLOGIES, LTD.
    Inventors: Aditya Vashistha, Rajarathnam Nallusamy, Sanjoy Paul
  • Patent number: 8379911
    Abstract: A method for watermarking of video content is provided. An averaged scene image is computed for each scene of video content by performing averaging of frames present in each scene of video content. For each averaged scene image a set of random numbers are generated using a secret key to identify pixels at random locations of the averaged scene image. The secret key is associated with a watermark pattern corresponding to each averaged scene image. The identified pixels in each averaged scene image are mapped to each pixel of corresponding watermark pattern to obtain respective mapped pixels. Using respective mapped pixels, values of verification information are fetched and assigned using predetermined rules. The values of verification information are arranged to obtain first visual cryptographic share of watermark pattern for each averaged scene image.
    Type: Grant
    Filed: February 15, 2011
    Date of Patent: February 19, 2013
    Assignee: Infosys Technologies Limited
    Inventors: Aditya Vashistha, Rajarathnam Nallusamy, Sanjoy Paul
  • Publication number: 20120148089
    Abstract: A method for watermarking of video content is provided. An averaged scene image is computed for each scene of video content by performing averaging of frames present in each scene of video content. For each averaged scene image a set of random numbers are generated using a secret key to identify pixels at random locations of the averaged scene image. The secret key is associated with a watermark pattern corresponding to each averaged scene image. The identified pixels in each averaged scene image are mapped to each pixel of corresponding watermark pattern to obtain respective mapped pixels. Using respective mapped pixels, values of verification information are fetched and assigned using predetermined rules. The values of verification information are arranged to obtain first visual cryptographic share of watermark pattern for each averaged scene image.
    Type: Application
    Filed: February 15, 2011
    Publication date: June 14, 2012
    Applicant: INFOSYS TECHNOLOGIES LIMITED
    Inventors: Aditya Vashistha, Rajarathnam Nallusamy, Sanjoy Paul