Patents by Inventor Hefeng Chen

Hefeng Chen 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).

  • Moving object recognition, speed estimation, and tagging
    Patent number: 10949982
    Abstract: Techniques for estimating speed for an object in a video (either stream or file) are described. In particular, once an object has been recognized, additional data (such as size) for that recognized object is used in a determination of a 3D position of that object in a plurality of frames. An estimated speed may be found using a difference between 3D positions of the object in different frames over the time between the frames.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: March 16, 2021
    Assignee: Amazon Technologies, Inc.
    Inventors: Qia Wang, Siva Somasundaram, Hefeng Chen, Vijay Gopal Joshi