Patents by Inventor Chengxing Zhai

Chengxing Zhai 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).

  • Systems and methods for tracking moving objects
    Patent number: 10301041
    Abstract: Systems and methods for tracking moving objects in accordance with embodiments of the invention are disclosed. In one embodiment of the invention, an object tracking system comprises a processor, a communications interface, and a memory configured to store an object tracking application. The object tracking application configures the processor to receive a sequence of images; estimate and subtract background pixel values from pixels in a sequence of images; compute sets of summed intensity values for different per frame pixel offsets from a sequence of images; identify summed intensity values from a set of summed intensity values exceeding a threshold; cluster identified summed intensity values exceeding the threshold corresponding to single moving objects; and identify a location of at least one moving object in an image based on at least one summed intensity value cluster.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: May 28, 2019
    Assignee: California Institute of Technology
    Inventors: Michael Shao, Shanti R. Rao, Bijan Nemati, Navtej Singh Saini, Russell Edward Trahan, III, Thomas A. Werne, Chengxing Zhai
  • Systems and Methods for Tracking Moving Objects
    Publication number: 20170358103
    Abstract: Systems and methods for tracking moving objects in accordance with embodiments of the invention are disclosed. In one embodiment of the invention, an object tracking system comprises a processor, a communications interface, and a memory configured to store an object tracking application. The object tracking application configures the processor to receive a sequence of images; estimate and subtract background pixel values from pixels in a sequence of images; compute sets of summed intensity values for different per frame pixel offsets from a sequence of images; identify summed intensity values from a set of summed intensity values exceeding a threshold; cluster identified summed intensity values exceeding the threshold corresponding to single moving objects; and identify a location of at least one moving object in an image based on at least one summed intensity value cluster.
    Type: Application
    Filed: June 9, 2017
    Publication date: December 14, 2017
    Applicant: California Institute of Technology
    Inventors: Michael Shao, Shanti R. Rao, Bijan Nemati, Navtej Singh Saini, Russell Edward Trahan, Thomas A. Werne, Chengxing Zhai