Patents by Inventor Zijian Orson Zhu

Zijian Orson Zhu 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).

  • Real time robust localization via visual inertial odometry
    Patent number: 11747144
    Abstract: A camera-based localization system is provided. The camera-based localization system may assist an unmanned vehicle to continue its operation in a GPS-denied environment with minimal increase in vehicular cost and payload. In one aspect, a method, a computer-readable medium, and an apparatus for localization via visual inertial odometry are provided. The apparatus may construct an optical flow based on feature points across a first video frame and a second video frame captured by a camera of the apparatus. The apparatus may refine the angular velocity and the linear velocity corresponding to the second video frame via solving a quadratic optimization problem constructed based on the optical flow, the initial values of the angular velocity and the linear velocity corresponding to the second video frame. The apparatus may estimate the pose of the apparatus based on the refined angular velocity and the refined linear velocity.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: September 5, 2023
    Assignee: Agency for Science, Technology and Research
    Inventors: Zhengguo Li, Jinghong Zheng, Zijian Orson Zhu, Qinyuan Ren, Kong Wah Wan, Wei Yun Yau
  • REAL TIME ROBUST LOCALIZATION VIA VISUAL INERTIAL ODOMETRY
    Publication number: 20200025570
    Abstract: A camera-based localization system is provided. The camera-based localization system may assist an unmanned vehicle to continue its operation in a GPS-denied environment with minimal increase in vehicular cost and payload. In one aspect, a method, a computer-readable medium, and an apparatus for localization via visual inertial odometry are provided. The apparatus may construct an optical flow based on feature points across a first video frame and a second video frame captured by a camera of the apparatus. The apparatus may refine the angular velocity and the linear velocity corresponding to the second video frame via solving a quadratic optimization problem constructed based on the optical flow, the initial values of the angular velocity and the linear velocity corresponding to the second video frame. The apparatus may estimate the pose of the apparatus based on the refined angular velocity and the refined linear velocity.
    Type: Application
    Filed: March 29, 2018
    Publication date: January 23, 2020
    Inventors: Zhengguo Li, Jinghong Zheng, Zijian Orson Zhu, Qinyuan Ren, Kong Wah Wan, Wei Yun Yau