Patents by Inventor Shekhar Madnani

Shekhar Madnani 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).

  • Publication number: 20130259392
    Abstract: A system and method for the identification and analysis of cadence pattern is disclosed. The method uses previous and current fields to generate the difference between the field values. The difference of these values along with the field relations is passed to the state machine to generate the state of the top and bottom fields. Based on the top and bottom state the cadence signature is generated and by using the Fourier analysis the principle frequency of repeated cadence pattern signature sequence is identified. Each of the cadence signatures present in the cadence pattern signature sequence is decoded to calculate the pull-down value of the cadence pattern. The pull down value then gives the actual cadence pattern.
    Type: Application
    Filed: July 15, 2012
    Publication date: October 3, 2013
    Inventors: Praney Mahajan, Shekhar Madnani
  • Patent number: 8432976
    Abstract: The invention provides a method, system and computer program product for detecting field order of a video sequence. The method includes processing a top and bottom field picture of a first frame and a second frame, in which the first and second frames are consecutive frames of a video sequence. Difference frames are obtained by calculating the difference of the top and bottom field pictures of the first and second frames. Thereafter, field order is detected using the difference frames.
    Type: Grant
    Filed: January 12, 2011
    Date of Patent: April 30, 2013
    Assignee: Interra Systems Inc.
    Inventors: Shekhar Madnani, Raman Kumar Sonkhla
  • Publication number: 20120176538
    Abstract: The invention provides a method, system and computer program product for detecting field order of a video sequence. The method includes processing a top and bottom field picture of a first frame and a second frame, in which the first and second frames are consecutive frames of a video sequence. Difference frames are obtained by calculating the difference of the top and bottom field pictures of the first and second frames. Thereafter, field order is detected using the difference frames.
    Type: Application
    Filed: January 12, 2011
    Publication date: July 12, 2012
    Inventors: Shekhar Madnani, Raman Kumar Sonkhla
  • Patent number: 8150191
    Abstract: A method and system for calculating a blur artifact in a video are disclosed. The video includes a series of frames captured at a predefined interval of time. The frames include one or more pixels. Calculating the blur artifact in the video includes identifying a focused area in a set of frames. Further, edges are detected in each of the frames. Furthermore, the blur artifact is calculated as a ratio of number of blurred pixels and total number edge pixels.
    Type: Grant
    Filed: October 14, 2008
    Date of Patent: April 3, 2012
    Assignee: Interra Systems Inc.
    Inventor: Shekhar Madnani
  • Patent number: 8049817
    Abstract: A method and system for calculating an interlace artifact in image data are disclosed. A motion picture of the image data comprises a series of frames, captured at a predefined interval of time. During processing of the motion picture, the frames are divided into fields, each field comprising one or more pixels. A difference between the pixels of the fields is calculated. Thereafter, edges of the pixels are calculated in the fields. The method and system then identify the focused area in the fields. To calculate the interlace artifact in the motion picture, the displacement of the focused area is calculated by using motion vectors. The artifacts are calculated as a ratio of a number of pixels based on motion vector calculation.
    Type: Grant
    Filed: October 2, 2008
    Date of Patent: November 1, 2011
    Assignee: Interra Systems Inc.
    Inventors: Shekhar Madnani, Shailesh Kumar
  • Publication number: 20100092100
    Abstract: A method and system for calculating a blur artifact in a video are disclosed. The video includes a series of frames captured at a predefined interval of time. The frames include one or more pixels. Calculating the blur artifact in the video includes identifying a focused area in a set of frames. Further, edges are detected in each of the frames. Furthermore, the blur artifact is calculated as a ratio of number of blurred pixels and total number edge pixels.
    Type: Application
    Filed: October 14, 2008
    Publication date: April 15, 2010
    Inventor: Shekhar Madnani
  • Publication number: 20100085475
    Abstract: A method and system for calculating an interlace artifact in image data are disclosed. A motion picture of the image data comprises a series of frames, captured at a predefined interval of time. During processing of the motion picture, the frames are divided into fields, each field comprising one or more pixels. A difference between the pixels of the fields is calculated. Thereafter, edges of the pixels are calculated in the fields. The method and system then identify the focused area in the fields. To calculate the interlace artifact in the motion picture, the displacement of the focused area is calculated by using motion vectors. The artifacts are calculated as a ratio of a number of pixels based on motion vector calculation.
    Type: Application
    Filed: October 2, 2008
    Publication date: April 8, 2010
    Inventors: Shekhar Madnani, Shailesh Kumar