Patents by Inventor Mei T. GUO

Mei T. GUO 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: 12348786
    Abstract: A cross-component based filtering system is disclosed for video coders and decoders. The filtering system may include a filter having an input for a filter offset and an input for samples reconstructed from coded video data representing a native component of source video on which the filter operates. The offset may be generated at least in part from a sample classifier that classifies samples reconstructed from coded video data representing a color component of the source video orthogonal to the native component according to sample intensity.
    Type: Grant
    Filed: November 2, 2022
    Date of Patent: July 1, 2025
    Assignee: APPLE INC.
    Inventors: Yixin Du, Alexandros Tourapis, Yunfei Zheng, Jun Xin, Alican Nalci, Mei T. Guo, Yeqing Wu, Hsi-Jung Wu
  • Publication number: 20230142771
    Abstract: A filtering system for video coders and decoders is disclosed that includes a feature detector having an input for samples reconstructed from coded video data representing a color component of source video, and having an output for data identifying a feature recognized therefrom, an offset calculator having an input for the feature identification data from the feature detector and having an output for a filter offset, and a filter having an input for the filter offset from the offset calculator and an input for the reconstructed samples, and having an output for filtered samples. The filtering system is expected to improve operations of video coder/decoder filtering systems by selecting filtering offsets from analysis of recovered video data in a common color plane as the samples that will be filtered.
    Type: Application
    Filed: November 2, 2022
    Publication date: May 11, 2023
    Inventors: Yixin DU, Alexandros TOURAPIS, Yunfei ZHENG, Jun XIN, Mukta S. Gore, Alican NALCI, Mei T. GUO, Yeqing WU, Hsi-Jung WU
  • Publication number: 20230143147
    Abstract: A cross-component based filtering system is disclosed for video coders and decoders. The filtering system may include a filter having an input for a filter offset and an input for samples reconstructed from coded video data representing a native component of source video on which the filter operates. The offset may be generated at least in part from a sample classifier that classifies samples reconstructed from coded video data representing a color component of the source video orthogonal to the native component according to sample intensity.
    Type: Application
    Filed: November 2, 2022
    Publication date: May 11, 2023
    Inventors: Yixin DU, Alexandros TOURAPIS, Yunfei ZHENG, Jun XIN, Alican NALCI, Mei T. GUO, Yeqing WU, Hsi-Jung WU