Patents by Inventor Hengchen DAI

Hengchen DAI 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: 11875511
    Abstract: The present disclosure provides a method and an apparatus for semantic segmentation of an image, capable of solving the problem in the related art associated with low speed and inefficiency in semantic segmentation of images. The method includes: receiving the image; performing semantic segmentation on the image to obtain an initial semantic segmentation result; and inputting image information containing the initial semantic segmentation result to a pre-trained convolutional neural network for semantic segmentation post-processing, so as to obtain a final semantic segmentation result. With the solutions of the present disclosure, the initial semantic segmentation result can be post-processed using the convolutional neural network, such that the speed and efficiency of the semantic segmentation of the image can be improved.
    Type: Grant
    Filed: December 20, 2021
    Date of Patent: January 16, 2024
    Assignee: BEIJING TUSEN ZHITU TECHNOLOGY CO., LTD.
    Inventors: Hengchen Dai, Naiyan Wang
  • Publication number: 20230360260
    Abstract: The present disclosure provides a method and an apparatus for determining an attitude angle of a camera fixed to a rigid object in a vehicle along with an Inertial Measurement Unit (IMU). In some embodiments, the method includes: obtaining IMU attitude angles outputted from the IMU and images captured by the camera; determining a target IMU attitude angle corresponding to each frame of image based on respective capturing time of the frames of images and respective outputting time of the IMU attitude angles; and determining an attitude angle of the camera corresponding to each frame of image based on a predetermined conversion relationship between a camera coordinate system for the camera and an IMU coordinate system for the IMU and the target IMU attitude angle corresponding to each frame of image.
    Type: Application
    Filed: July 18, 2023
    Publication date: November 9, 2023
    Inventor: Hengchen DAI
  • Patent number: 11715232
    Abstract: The present disclosure provides a method and an apparatus for determining an attitude angle of a camera, capable of improving the accuracy of the attitude angle of the camera, and in turn the accuracy of the attitude of the camera that is obtained based on the attitude angle of the camera. The present disclosure can also improve the accuracy of object distance measurement and vehicle positioning based on the attitude angle of the camera. In the method for determining an attitude angle of a camera, the camera is fixed to one and the same rigid object in a vehicle along with an Inertial Measurement Unit (IMU).
    Type: Grant
    Filed: April 5, 2021
    Date of Patent: August 1, 2023
    Assignee: BEIJING TUSEN ZHITU TECHNOLOGY CO., LTD.
    Inventor: Hengchen Dai
  • Publication number: 20220114731
    Abstract: The present disclosure provides a method and an apparatus for semantic segmentation of an image, capable of solving the problem in the related art associated with low speed and inefficiency in semantic segmentation of images. The method includes: receiving the image; performing semantic segmentation on the image to obtain an initial semantic segmentation result; and inputting image information containing the initial semantic segmentation result to a pre-trained convolutional neural network for semantic segmentation post-processing, so as to obtain a final semantic segmentation result. With the solutions of the present disclosure, the initial semantic segmentation result can be post-processed using the convolutional neural network, such that the speed and efficiency of the semantic segmentation of the image can be improved.
    Type: Application
    Filed: December 20, 2021
    Publication date: April 14, 2022
    Inventors: Hengchen DAI, Naiyan WANG
  • Patent number: 11205271
    Abstract: The present disclosure provides a method and an apparatus for semantic segmentation of an image, capable of solving the problem in the related art associated with low speed and inefficiency in semantic segmentation of images. The method includes: receiving the image; performing semantic segmentation on the image to obtain an initial semantic segmentation result; and inputting image information containing the initial semantic segmentation result to a pre-trained convolutional neural network for semantic segmentation post-processing, so as to obtain a final semantic segmentation result. With the solutions of the present disclosure, the initial semantic segmentation result can be post-processed using the convolutional neural network, such that the speed and efficiency of the semantic segmentation of the image can be improved.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: December 21, 2021
    Assignee: BEIJING TUSEN ZHITU TECHNOLOGY CO., LTD.
    Inventors: Hengchen Dai, Naiyan Wang
  • Publication number: 20210225030
    Abstract: The present disclosure provides a method and an apparatus for determining an attitude angle of a camera, capable of improving the accuracy of the attitude angle of the camera, and in turn the accuracy of the attitude of the camera that is obtained based on the attitude angle of the camera. The present disclosure can also improve the accuracy of object distance measurement and vehicle positioning based on the attitude angle of the camera. In the method for determining an attitude angle of a camera, the camera is fixed to one and the same rigid object in a vehicle along with an Inertial Measurement Unit (IMU).
    Type: Application
    Filed: April 5, 2021
    Publication date: July 22, 2021
    Inventor: Hengchen DAI
  • Patent number: 10970873
    Abstract: The present disclosure provides a method and an apparatus for determining an attitude angle of a camera, capable of improving the accuracy of the attitude angle of the camera, and in turn the accuracy of the attitude of the camera that is obtained based on the attitude angle of the camera. The present disclosure can also improve the accuracy of object distance measurement and vehicle positioning based on the attitude angle of the camera. In the method for determining an attitude angle of a camera, the camera is fixed to one and the same rigid object in a vehicle along with an Inertial Measurement Unit (IMU).
    Type: Grant
    Filed: January 15, 2019
    Date of Patent: April 6, 2021
    Assignee: TUSIMPLE, INC.
    Inventor: Hengchen Dai
  • Publication number: 20200020102
    Abstract: The present disclosure provides a method and an apparatus for semantic segmentation of an image, capable of solving the problem in the related art associated with low speed and inefficiency in semantic segmentation of images. The method includes: receiving the image; performing semantic segmentation on the image to obtain an initial semantic segmentation result; and inputting image information containing the initial semantic segmentation result to a pre-trained convolutional neural network for semantic segmentation post-processing, so as to obtain a final semantic segmentation result. With the solutions of the present disclosure, the initial semantic segmentation result can be post-processed using the convolutional neural network, such that the speed and efficiency of the semantic segmentation of the image can be improved.
    Type: Application
    Filed: September 20, 2019
    Publication date: January 16, 2020
    Inventors: Hengchen DAI, Naiyan WANG
  • Publication number: 20190259176
    Abstract: The present disclosure provides a method and an apparatus for determining an attitude angle of a camera, capable of improving the accuracy of the attitude angle of the camera, and in turn the accuracy of the attitude of the camera that is obtained based on the attitude angle of the camera. The present disclosure can also improve the accuracy of object distance measurement and vehicle positioning based on the attitude angle of the camera. In the method for determining an attitude angle of a camera, the camera is fixed to one and the same rigid object in a vehicle along with an Inertial Measurement Unit (IMU).
    Type: Application
    Filed: January 15, 2019
    Publication date: August 22, 2019
    Inventor: Hengchen Dai