Patents by Inventor Mingkai Shao

Mingkai Shao 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: 20220210432
    Abstract: A processing apparatus and video encoding method are provided which include receiving a portion of a video sequence and determining complexities for blocks of pixels of the portion of the video sequence. Quantization parameter values for corresponding blocks of pixels are selected based on complexities of the corresponding blocks and visually perceived coding artifacts of the corresponding blocks produced by the quantization parameter values. The blocks of pixels are encoded, using the selected quantization parameter values. The blocks of pixels are decoded and the portion of the video sequence is provided for display.
    Type: Application
    Filed: December 28, 2020
    Publication date: June 30, 2022
    Applicant: ATI Technologies ULC
    Inventors: Feng Pan, Crystal Yeong-Pian Sau, Wei Gao, Mingkai Shao, Dong Liu, Ihab M. A. Amer, Gabor Sines
  • Publication number: 20220210429
    Abstract: Methods and devices are provided for encoding video. By using co-sited gradient and variance values to detect text and line in frames of the video. A processor is configured to receive a plurality of frames of video, determine, for a portion of a frame, a variance of the portion of the frame and a gradient of the portion of the frame and encode, using one of a plurality of different encoding qualities, the portion of the frame based on the gradient and the variance of the portion of the frame. Encoding is performed at both the sub-frame level and frame level. The portion of the frame is classified into one of a plurality of categories based on the gradient and variance and encoded based on the category.
    Type: Application
    Filed: December 30, 2020
    Publication date: June 30, 2022
    Applicant: ATI Technologies ULC
    Inventors: Mehdi Saeedi, Sai Harshita Tupili, Yang Liu, Mingkai Shao, Gabor Sines
  • Publication number: 20220210479
    Abstract: Methods and apparatus provide cloud-based video encoding that generates encoded video data by one or more encoders in a cloud platform for a plurality of cloud encoding sessions. The methods and apparatus generate operational improvement tradeoff data in response to operational encoding metrics associated with the one or more encoders and change operational characteristics of the one or more encoders for at least one of the cloud encoding sessions based on the operational improvement tradeoff data.
    Type: Application
    Filed: December 31, 2020
    Publication date: June 30, 2022
    Inventors: Wei Gao, Ihab Amer, Feng Pan, Mingkai Shao, Crystal Sau, Dong Liu, Gabor Sines, Yang Liu
  • Publication number: 20220092760
    Abstract: Calculating, for each frame of a plurality of frames, a corresponding quality value; calculating, for each frame of the plurality of frames, based on one or more visual attributes of a frame, a weight for the corresponding quality value of the frame; calculating an aggregate quality value for the plurality of frames based on the weight and the corresponding quality value for each frame of the plurality of frames; and providing an assessment of the plurality of frames based on the aggregate quality value for the plurality of frames.
    Type: Application
    Filed: September 24, 2020
    Publication date: March 24, 2022
    Inventors: FENG PAN, YANG LIU, CRYSTAL SAU, WEI GAO, MINGKAI SHAO, DONG LIU, IHAB AMER, GABOR SINES
  • Patent number: 8553769
    Abstract: An encoder and method for encoding data in a scalable data compression format are described. In particular, process for encoding spatially scalable video are described in which the base layer uses downscaled residuals from a full-resolution encoding of the video in its motion estimation process. The downscaled residuals may also be used in the coding mode selection process at the base layer.
    Type: Grant
    Filed: January 19, 2011
    Date of Patent: October 8, 2013
    Assignee: BlackBerry Limited
    Inventors: Dake He, Mingkai Shao
  • Publication number: 20120183056
    Abstract: An encoder and method for encoding data in a scalable data compression format are described. In particular, process for encoding spatially scalable video are described in which the base layer uses downscaled residuals from a full-resolution encoding of the video in its motion estimation process. The downscaled residuals may also be used in the coding mode selection process at the base layer.
    Type: Application
    Filed: January 19, 2011
    Publication date: July 19, 2012
    Inventors: Dake He, Mingkai Shao