Patents by Inventor Lim WANG-Q

Lim WANG-Q 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).

  • Adaptive in-loop filter with multiple feature-based classifications
    Patent number: 11297341
    Abstract: A decoder is described, which receives an encoded data stream. The encoded data stream includes data representing a picture and a classification mode parameter. The classification mode parameter specifies a certain classification to be applied to samples in the picture, the certain classification selected from a plurality of classifications. The decoder decodes the encoded data stream to obtain a reconstructed picture and the classification mode parameter, classifies samples of the reconstructed picture into one of a plurality of classes using the certain classification specified by the classification mode parameter, and filters the samples of the reconstructed picture. A sample is filtered using a filter for the class into which the sample has been classified.
    Type: Grant
    Filed: August 6, 2020
    Date of Patent: April 5, 2022
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Johannes Erfurt, Lim Wang-Q, Mischa Siekmann, Heiko Schwarz, Detlev Marpe, Thomas Wiegand
  • ADAPTIVE IN-LOOP FILTER WITH MULTIPLE FEATURE-BASED CLASSIFICATIONS
    Publication number: 20200366918
    Abstract: A decoder is described, which receives an encoded data stream. The encoded data stream includes data representing a picture and a classification mode parameter. The classification mode parameter specifies a certain classification to be applied to samples in the picture, the certain classification selected from a plurality of classifications. The decoder decodes the encoded data stream to obtain a reconstructed picture and the classification mode parameter, classifies samples of the reconstructed picture into one of a plurality of classes using the certain classification specified by the classification mode parameter, and filters the samples of the reconstructed picture. A sample is filtered using a filter for the class into which the sample has been classified.
    Type: Application
    Filed: August 6, 2020
    Publication date: November 19, 2020
    Inventors: Johannes ERFURT, Lim WANG-Q, Mischa SIEKMANN, Heiko SCHWARZ, Detlev MARPE, Thomas WIEGAND
  • Upsampling and signal enhancement
    Patent number: 9830682
    Abstract: A signal which is to be quality-improved often suffers from the quality degradation in the spatial high frequency region more than compared to the spatial low frequency region. Accordingly a quality improvement is performed efficiently by combining the signal to be quality improved with a high frequency portion extracted from a sparse approximation of the signal to be quality improved.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: November 28, 2017
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Haricharan Lakshman, Heiko Schwarz, Detlev Marpe, Thomas Wiegand, Gitta Kutyniok, Lim Wang-Q
  • UPSAMPLING AND SIGNAL ENHANCEMENT
    Publication number: 20160048947
    Abstract: A signal which is to be quality-improved often suffers from the quality degradation in the spatial high frequency region more than compared to the spatial low frequency region. Accordingly a quality improvement is performed efficiently by combining the signal to be quality improved with a high frequency portion extracted from a sparse approximation of the signal to be quality improved.
    Type: Application
    Filed: October 26, 2015
    Publication date: February 18, 2016
    Inventors: Haricharan LAKSHMAN, Heiko SCHWARZ, Detlev MARPE, Thomas WIEGAND, Gitta KUTYNIOK, Lim WANG-Q