Patents by Inventor Maojian Xiang

Maojian Xiang 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 of adding encoded range-of-interest location, type, and adjustable quantization parameters per macroblock to video stream
    Patent number: 11533493
    Abstract: A video encoding method is provided in the present invention. The method includes: determining a range of interest ROI in an ith frame, wherein the ROI comprises at least one ROI macroblock; extracting characteristic information of the at least one ROI macroblock, wherein the characteristic information comprises location information and type information of the at least one ROI macroblock; determining a quantization parameter QP corresponding to each of the at least one ROI macroblock; encoding the characteristic information of the at least one ROI macroblock according to the determined QP corresponding to each ROI macroblock, to obtain an ROI characteristic stream of the ith frame; and adding, to a video stream of the ith frame, the QP corresponding to each ROI macroblock and the ROI characteristic stream of the ith frame, to perform sending, wherein the video stream of the ith frame is obtained by encoding the ROI and a non-ROI comprised in the ith frame.
    Type: Grant
    Filed: January 26, 2021
    Date of Patent: December 20, 2022
    Assignee: SHANDONG RUIXIN SEMICONDUCTOR TECHNOLOGY CO., LTD
    Inventors: Minsheng Wang, Maojian Xiang, Xiaojun Liu
  • Method of Adding Encoded Range-of-Interest Location, Type, and Adjustable Quantization Parameters Per Macroblock to Video Stream
    Publication number: 20210176476
    Abstract: A video encoding method is provided in the present invention. The method includes: determining a range of interest ROI in an ith frame, wherein the ROI comprises at least one ROI macroblock; extracting characteristic information of the at least one ROI macroblock, wherein the characteristic information comprises location information and type information of the at least one ROI macroblock; determining a quantization parameter QP corresponding to each of the at least one ROI macroblock; encoding the characteristic information of the at least one ROI macroblock according to the determined QP corresponding to each ROI macroblock, to obtain an ROI characteristic stream of the ith frame; and adding, to a video stream of the ith frame, the QP corresponding to each ROI macroblock and the ROI characteristic stream of the ith frame, to perform sending, wherein the video stream of the ith frame is obtained by encoding the ROI and a non-ROI comprised in the ith frame.
    Type: Application
    Filed: January 26, 2021
    Publication date: June 10, 2021
    Inventors: Minsheng WANG, Maojian XIANG, Xiaojun LIU
  • Method of adding encoded range-of-interest location, type and adjustable quantization parameters per macroblock to video stream
    Patent number: 10939126
    Abstract: A video encoding method is provided in the present invention. The method includes: determining a range of interest ROI in an ith frame, wherein the ROI comprises at least one ROI macroblock; extracting characteristic information of the at least one ROI macroblock, wherein the characteristic information comprises location information and type information of the at least one ROI macroblock; determining a quantization parameter QP corresponding to each of the at least one ROI macroblock; encoding the characteristic information of the at least one ROI macroblock according to the determined QP corresponding to each ROI macroblock, to obtain an ROI characteristic stream of the ith frame; and adding, to a video stream of the ith frame, the QP corresponding to each ROI macroblock and the ROI characteristic stream of the ith frame, to perform sending, wherein the video stream of the ith frame is obtained by encoding the ROI and a non-ROI comprised in the ith frame.
    Type: Grant
    Filed: May 7, 2020
    Date of Patent: March 2, 2021
    Assignee: GUANGZHOU ZHIJING TECHNOLOGY CO., LTD
    Inventors: Minsheng Wang, Maojian Xiang, Xiaojun Liu