Patents by Inventor Liqiang Zheng

Liqiang Zheng 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: 11936861
    Abstract: Embodiments of this application relate to the video coding and compression field, and disclose an encoding method and apparatus, and a decoding method and apparatus, to resolve a problem that an existing split mode cannot satisfy a relatively complex texture requirement. The decoding method specifically includes: parsing a bitstream to determine a basic split mode for a current to-be-decoded picture block and a target derivation mode for a subpicture block of the current to-be-decoded picture block; splitting the current to-be-decoded picture block into N subpicture blocks in the basic split mode, where N is an integer greater than or equal to 2; deriving one derived picture block from at least two adjacent subpicture blocks in the N subpicture blocks in the target derivation mode; and decoding the derived picture block.
    Type: Grant
    Filed: November 16, 2020
    Date of Patent: March 19, 2024
    Assignees: Huawei Technologies Co., Ltd., Tsinghua University
    Inventors: Quanhe Yu, Jicheng An, Jianhua Zheng, Yongbing Lin, Liqiang Wang, Benben Niu, Ziwei Wei, Yun He
  • Publication number: 20240078777
    Abstract: The present disclosure relates to a control method of a virtual object, a control apparatus, a device and a medium. The method displays a target virtual scene in a target interactive interface, under the condition that there is a target virtual object in the plurality of virtual objects, displays a target control, the target virtual object being a virtual object controllable by the virtual subject in a non-contact manner; in response to receiving a trigger operation on the target control, causes the virtual subject to perform non-contact control on the target virtual object according to a control mode corresponding to the target control, wherein the target virtual scene includes a plurality of virtual objects and a virtual subject controlled by a user.
    Type: Application
    Filed: September 1, 2023
    Publication date: March 7, 2024
    Inventors: Haixing ZHENG, Xiao CHEN, Liqiang WANG, Songyun DING, Chuanzan LI
  • Publication number: 20220254258
    Abstract: Disclosed are a route altitude adjustment method, an unmanned aerial vehicle operation method, and a related apparatus. The route altitude adjustment method includes: acquiring an operating route and an initial height table corresponding to the operating route are acquired; and then, optimizing the initial height table by using the maximum vertical velocity and the maximum vertical acceleration of an unmanned aerial vehicle in a height direction to obtain a target height table including the plurality of interpolation points and a target height of each of the plurality of interpolation point, so that a vertical velocity for flight between any two adjacent interpolation points is less than the maximum vertical velocity and a vertical acceleration for flight between any three adjacent interpolation points is less than the maximum vertical acceleration, so that the unmanned aerial vehicle may always satisfy a flight performance requirements during flight.
    Type: Application
    Filed: April 29, 2022
    Publication date: August 11, 2022
    Applicant: GUANGZHOU XAIRCRAFT TECHNOLOGY CO., LTD.
    Inventor: Liqiang ZHENG
  • Patent number: 11119511
    Abstract: A method and a device for obstacle or ground recognition and flight control, and an aircraft. The method for obstacle or ground recognition includes: determining point cloud data of a region in front of an aircraft; dividing the region in front into several subareas, determining an altitude of each of the subregions based on the point cloud data in each of the subregions; performing linear fitting on the altitudes of the several subregions, and determining whether an obstacle and/or ground is present in the front region according to the fitting result.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: September 14, 2021
    Assignee: GUANGZHOU XAIRCRAFT TECHNOLOGY CO., LTD.
    Inventor: Liqiang Zheng
  • Publication number: 20200394924
    Abstract: A method for configuring navigation chart is provided. The method may include: acquiring a current flight position, posture information and a depth image detected at the current flight position of an unmanned aerial vehicle (S110); acquiring three-dimensional position information of each point according to the current flight position, the posture information and the depth image (S120); and projecting the three-dimensional position information of the each point into a local navigation chart taking the current flight position as a center according to a weight that is set respectively (S130). An automatic obstacle avoidance method, an automatic obstacle avoidance apparatus, a terminal and the unmanned aerial vehicle (800) are further provided.
    Type: Application
    Filed: October 26, 2018
    Publication date: December 17, 2020
    Applicant: Guangzhou Xaircraft Technology Co., Ltd
    Inventors: Liqiang ZHENG, Peng LIU
  • Publication number: 20200333806
    Abstract: A method and a device for obstacle or ground recognition and flight control, and an aircraft. The method for obstacle or ground recognition includes: determining point cloud data of a region in front of an aircraft; dividing the region in front into several subareas, determining an altitude of each of the subregions based on the point cloud data in each of the subregions; performing linear fitting on the altitudes of the several subregions, and determining whether an obstacle and/or ground is present in the front region according to the fitting result.
    Type: Application
    Filed: July 25, 2019
    Publication date: October 22, 2020
    Inventor: Liqiang Zheng