Patents by Inventor Ruihui Di

Ruihui Di 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: 11508089
    Abstract: A method of wheel encoder to camera calibration, including receiving a LiDAR (Light Detection and Ranging) signal, receiving a camera signal, receiving a wheel encoder signal, calibrating the camera signal to the LiDAR signal, calibrating the wheel encoder signal to the LiDAR signal and calibrating the camera signal to the wheel encoder signal based on the calibration of the camera signal to the LiDAR signal and the wheel encoder signal to the LiDAR signal.
    Type: Grant
    Filed: March 5, 2021
    Date of Patent: November 22, 2022
    Assignee: Black Sesame Technologies Inc.
    Inventors: Yu Huang, Ruihui Di, Zheng Qi, Jizhang Shan
  • Publication number: 20220283298
    Abstract: A method of determining a vehicle position and a vehicle velocity, including receiving a camera image sequence based on a camera borne by a vehicle and determining a camera pose based on the camera image sequence. The method includes determining a global position system location based on a global position system receiver borne by the vehicle, determining an inertial movement signal based on an inertial movement unit borne by the vehicle and receiving a wheel encoder signal from a wheel of the vehicle. The method additionally includes determining at least one of the vehicle positions and the vehicle velocity based on at least two of the camera pose, the global position system location, the inertial movement signal and the wheel encoder signal in temporal synchronization.
    Type: Application
    Filed: March 5, 2021
    Publication date: September 8, 2022
    Inventors: Ruihui Di, Yu Huang, Jizhang Shan
  • Publication number: 20220284626
    Abstract: A method of wheel encoder to camera calibration, including receiving a LiDAR (Light Detection and Ranging) signal, receiving a camera signal, receiving a wheel encoder signal, calibrating the camera signal to the LiDAR signal, calibrating the wheel encoder signal to the LiDAR signal and calibrating the camera signal to the wheel encoder signal based on the calibration of the camera signal to the LiDAR signal and the wheel encoder signal to the LiDAR signal.
    Type: Application
    Filed: March 5, 2021
    Publication date: September 8, 2022
    Inventors: Yu Huang, Ruihui Di, Zheng Qi, Jizhang Shan
  • Publication number: 20220019244
    Abstract: The position of a UAV within a three-dimensional space is changed based on a change in position of a controller of the UAV. First and second sensor data are produced using sensors of the controller to maintain stable altitude output for the UAV. The first sensor data indicates a geolocation of the controller, and the second sensor data indicates a barometric pressure of an environment in which the controller is located. The first and second sensor data are post-processed using a complementary filter based on respective altitude measurements of the first and second sensor data to determine an altitude of the controller. A position of the controller is determined within a three-dimensional space based on the altitude. Data indicative of the position of the controller within the three-dimensional space is then transmitted to the UAV to cause a change in a position of the UAV within the three-dimensional space.
    Type: Application
    Filed: August 3, 2021
    Publication date: January 20, 2022
    Inventors: Ruihui Di, Ashwani Arya, Mehran Ferdowsi, Nirmit Kamalbhai Shah
  • Patent number: 11099581
    Abstract: The position of a UAV within a three-dimensional space is changed based on a change in position of a controller of the UAV. First and second sensor data are produced using sensors of the controller to maintain stable altitude output for the UAV. The first sensor data indicates a geolocation of the controller, and the second sensor data indicates a barometric pressure of an environment in which the controller is located. The first and second sensor data are post-processed using a complementary filter based on respective altitude measurements of the first and second sensor data to determine an altitude of the controller. A position of the controller is determined within a three-dimensional space based on the altitude. Data indicative of the position of the controller within the three-dimensional space is then transmitted to the UAV to cause a change in a position of the UAV within the three-dimensional space.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: August 24, 2021
    Assignee: GoPro, Inc.
    Inventors: Ruihui Di, Ashwani Arya, Mehran Ferdowsi, Nirmit Kamalbhai Shah
  • Publication number: 20190094887
    Abstract: The position of a UAV within a three-dimensional space is changed based on a change in position of a controller of the UAV. First and second sensor data are produced using sensors of the controller to maintain stable altitude output for the UAV. The first sensor data indicates a geolocation of the controller, and the second sensor data indicates a barometric pressure of an environment in which the controller is located. The first and second sensor data are post-processed using a complementary filter based on respective altitude measurements of the first and second sensor data to determine an altitude of the controller. A position of the controller is determined within a three-dimensional space based on the altitude. Data indicative of the position of the controller within the three-dimensional space is then transmitted to the UAV to cause a change in a position of the UAV within the three-dimensional space.
    Type: Application
    Filed: March 8, 2018
    Publication date: March 28, 2019
    Inventors: Ruihui Di, Ashwani Arya, Mehran Ferdowsi, Nirmit Kamalbhai Shah