Patents by Inventor Ajun Liu

Ajun Liu 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).

  • Method and system for upsampling a spatial layered coded video image
    Patent number: 8718130
    Abstract: The invention relates to video image compression technologies, and discloses a method and system for upsampling a spatial scalable coded video image so that during upsampling computation complexity may be reduced while coding performance is substantially unchanged. In the invention, the principle that human eyes are far less sensitive to a chrominance components than to a luminance components is utilized, and a simpler filter is adopted for the chrominance components than that for the luminance components during upsampling in I_BLINTRA_Base inter-layer prediction or residual samples image inter-layer prediction, thereby reducing effectively calculation complexity while coding performance is substantially unchanged.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: May 6, 2014
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Lianhuan Xiong, Yihua Tan, Zhang Wang, Ajun Liu
  • METHOD AND SYSTEM FOR UPSAMPLING A SPATIAL LAYERED CODED VIDEO IMAGE
    Publication number: 20080205513
    Abstract: The invention relates to video image compression technologies, and discloses a method and system for upsampling a spatial scalable coded video image so that during upsampling computation complexity may be reduced while coding performance is substantially unchanged. In the invention, the principle that human eyes are far less sensitive to a chrominance components than to a luminance components is utilized, and a simpler filter is adopted for the chrominance components than that for the luminance components during upsampling in I_BLINTRA_Base inter-layer prediction or residual samples image inter-layer prediction, thereby reducing effectively calculation complexity while coding performance is substantially unchanged.
    Type: Application
    Filed: April 11, 2008
    Publication date: August 28, 2008
    Applicant: Huawei Technologies Co., Ltd.
    Inventors: Lianhuan Xiong, Yihua Tan, Zhang Wang, Ajun Liu