Patents by Inventor Prabhanjana Kumar Nallani

Prabhanjana Kumar Nallani 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).

  • Method and system to detect and quantify blockiness in video files
    Patent number: 8111929
    Abstract: A method and system for detecting and quantifying blockiness in a video file is disclosed. The video file is a file that has been decompressed by using standard DCT algorithms. The method includes segmenting each frame of the video file into multiple blocks. The method also involves comparing the intensity gradients of each block with one or more threshold values. The one or more threshold values represent predefined intensity variation characteristics. Further, the method includes determining the intensity variation parameters of each block, based on the comparison. Thereafter, a blockiness index is calculated for each block, after which a blockiness value is calculated for each frame. Finally, a blockiness level is assigned to each frame, based on its blockiness value. The blockiness level is a comparative measure of the blockiness of a frame that represents the blockiness content in the frame.
    Type: Grant
    Filed: February 29, 2008
    Date of Patent: February 7, 2012
    Assignee: Interra Systems Inc.
    Inventors: Praveen Kumar Tiwari, Abhishek Kumar Tiwary, Anuj Verma, Manik Gupta, Prabhanjana Kumar Nallani
  • Method and system to detect and quantify blockiness in video files
    Publication number: 20090220152
    Abstract: A method and system for detecting and quantifying blockiness in a video file is disclosed. The video file is a file that has been decompressed by using standard DCT algorithms. The method includes segmenting each frame of the video file into multiple blocks. The method also involves comparing the intensity gradients of each block with one or more threshold values. The one or more threshold values represent predefined intensity variation characteristics. Further, the method includes determining the intensity variation parameters of each block, based on the comparison. Thereafter, a blockiness index is calculated for each block, after which a blockiness value is calculated for each frame. Finally, a blockiness level is assigned to each frame, based on its blockiness value. The blockiness level is a comparative measure of the blockiness of a frame that represents the blockiness content in the frame.
    Type: Application
    Filed: February 29, 2008
    Publication date: September 3, 2009
    Inventors: Praveen Kumar Tiwari, Abhishek Kumar Tiwary, Anuj Verma, Manik Gupta, Prabhanjana Kumar Nallani