Patents by Inventor Yizhi TANG

Yizhi TANG 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, apparatus, device and medium for calibrating pose relationship between vehicle sensor and vehicle
    Patent number: 11157766
    Abstract: A method, apparatus, device, and medium for calibrating a pose relationship between a vehicle sensor and a vehicle are provided. The method includes: acquiring, by a field-end sensor mounted in a side edge area of the calibration environment, a first image of the calibration environment, and acquiring a second image of the calibration environment by a vehicle sensor, different identifier units being laid on a spatial plane of the calibration environment; determining a first pose transformation relationship between a vehicle coordinate system and a world coordinate system based on the first image; determining a second pose transformation relationship between a vehicle sensor coordinate system and the world coordinate system based on the second image; and calibrating the pose relationship between the vehicle sensor and the vehicle using the above determined pose transformation relationships.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: October 26, 2021
    Assignee: Beijing Baidu Netcom Science and Technology Co., Ltd.
    Inventors: Chengzhi Han, Yizhi Tang, Fei Yan
  • METHOD, APPARATUS, DEVICE AND MEDIUM FOR CALIBRATING POSE RELATIONSHIP BETWEEN VEHICLE SENSOR AND VEHICLE
    Publication number: 20200394445
    Abstract: A method, apparatus, device, and medium for calibrating a pose relationship between a vehicle sensor and a vehicle are provided. The method includes: acquiring, by a field-end sensor mounted in a side edge area of the calibration environment, a first image of the calibration environment, and acquiring a second image of the calibration environment by a vehicle sensor, different identifier units being laid on a spatial plane of the calibration environment; determining a first pose transformation relationship between a vehicle coordinate system and a world coordinate system based on the first image; determining a second pose transformation relationship between a vehicle sensor coordinate system and the world coordinate system based on the second image; and calibrating the pose relationship between the vehicle sensor and the vehicle using the above determined pose transformation relationships.
    Type: Application
    Filed: December 9, 2019
    Publication date: December 17, 2020
    Inventors: Chengzhi HAN, Yizhi TANG, Fei YAN