Patents by Inventor Junyang LIU

Junyang 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).

  • Patent number: 12623344
    Abstract: The present invention provides a method for robot assisted multi-view 3D scanning measurement based on path planning. Firstly, establishing a virtual simulation platform to complete the setting of measurement poses and measurement paths and perform the path evaluations of measurement paths, which improves the measurement efficiency and guarantees the measurement safety. Then, completing the preliminary hand-eye calibration based on the properties of Kronecker product, which reduces the system noise in the process of calibration and the error influence caused by the calculation, and the preliminary hand-eye calibration is optimized by establishing a reprojection error cost function as the fitness function of the particle swarm optimization algorithm, which further improves the accuracy of hand-eye calibration and guarantees the registration quality of single-view point cloud.
    Type: Grant
    Filed: April 28, 2023
    Date of Patent: May 12, 2026
    Assignee: UNIVERSITY OF ELECTRONIC SCIENCE AND TECHNOLOGY OF CHINA
    Inventors: Chun Yin, Yan Gao, Zhongbao Yan, Kai Chen, Yuhua Cheng, Xutong Tan, Junyang Liu
  • Publication number: 20230339112
    Abstract: Robot assisted multi-view 3D scanning measurement based on path planning includes firstly, establishing a virtual simulation platform to complete the setting of measurement poses and measurement paths and perform the path evaluations of measurement paths. Then, completing the preliminary hand-eye calibration based on the properties of Kronecker product, and the preliminary hand-eye calibration is optimized by establishing a reprojection error cost function as the fitness function of the particle swarm optimization algorithm. Lastly, moving the robot to the measurement poses of the planned measurement paths, obtaining a single-view point cloud of the measured object and transforming it from the camera coordinate system to the robot base coordinate system to obtain a registered single-view point cloud based on the optimized hand-eye matrix.
    Type: Application
    Filed: April 28, 2023
    Publication date: October 26, 2023
    Applicant: UNIVERSITY OF ELECTRONIC SCIENCE AND TECHNOLOGY OF CHINA
    Inventors: Chun YIN, Yan GAO, Zhongbao YAN, Kai CHEN, Yuhua CHENG, Xutong TAN, Junyang LIU