For Compensating Inverse Transform Mismatch, E.g., Idct Mismatch (epo) Patents (Class 375/E7.028)
  • Low-complexity two-dimensional (2D) separable transform design with transpose buffer management
    Patent number: 9998740
    Abstract: Methods are provided for reducing the size of a transpose buffer used for computation of a two-dimensional (2D) separable transform. Scaling factors and clip bit widths determined for a particular transpose buffer size and the expected transform sizes are used to reduce the size of the intermediate results of applying the 2D separable transform. The reduced bit widths of the intermediate results may vary across the intermediate results. In some embodiments, the scaling factors and associated clip bit widths may be adapted during encoding.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: June 12, 2018
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventor: Osman Gokhan Sezer
  • Low-complexity two-dimensional (2D) separable transform design with transpose buffer management
    Patent number: 9503737
    Abstract: Methods are provided for reducing the size of a transpose buffer used for computation of a two-dimensional (2D) separable transform. Scaling factors and clip bit widths determined for a particular transpose buffer size and the expected transform sizes are used to reduce the size of the intermediate results of applying the 2D separable transform. The reduced bit widths of the intermediate results may vary across the intermediate results. In some embodiments, the scaling factors and associated clip bit widths may be adapted during encoding.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: November 22, 2016
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventor: Osman Gokhan Sezer
  • Systems and methods for reduced bit-depth processing in video-related data with frequency weighting matrices
    Patent number: RE42745
    Abstract: Embodiments of the present invention comprise systems and methods for processing of data related to video wherein reduced bit depth intermediate calculations are enabled.
    Type: Grant
    Filed: January 19, 2010
    Date of Patent: September 27, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Louis J. Kerofsky
  • Systems and methods for reduced bit-depth processing in video-related data with frequency weighting matrices
    Patent number: RE44138
    Abstract: Embodiments of the present invention comprise systems and methods for processing of data related to video wherein reduced bit depth intermediate calculations are enabled.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: April 9, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Louis Joseph Kerofsky
  • Systems and methods for reduced bit-depth processing in video-related data with frequency weighting matrices
    Patent number: RE44234
    Abstract: Embodiments of the present invention comprise systems and methods for processing of data related to video wherein reduced bit depth intermediate calculations are enabled.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: May 21, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Louis Joseph Kerofsky
  • Systems and methods for reduced bit-depth processing in video-related data with frequency weighting matrices
    Patent number: RE44285
    Abstract: Embodiments of the present invention comprise systems and methods for processing of data related to video wherein reduced bit depth intermediate calculations are enabled.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: June 11, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Louis Joseph Kerofsky
  • Systems and methods for reduced bit-depth processing in video-related data with frequency weighting matrices
    Patent number: RE44319
    Abstract: Embodiments of the present invention comprise systems and methods for processing of data related to video wherein reduced bit depth intermediate calculations are enabled.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: June 25, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Louis Joseph Kerofsky
  • Systems and methods for reduced bit-depth processing in video-related data with frequency weighting matrices
    Patent number: RE44891
    Abstract: Embodiments of the present invention comprise systems and methods for processing of data related to video wherein reduced bit depth intermediate calculations are enabled.
    Type: Grant
    Filed: May 23, 2013
    Date of Patent: May 13, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Louis Joseph Kerofsky