Patents by Inventor Zhiqian Wang

Zhiqian Wang 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).

  • System and process for detecting, tracking and counting human objects of interest
    Patent number: 7965866
    Abstract: A method of identifying, tracking, and counting human objects of interest based upon at least one pair of stereo image frames taken by at least one image capturing device, comprising the steps of: obtaining said stereo image frames and converting each said stereo image frame to a rectified image frame using calibration data obtained for said at least one image capturing device; generating a disparity map based upon a pair of said rectified image frames; generating a depth map based upon said disparity map and said calibration data; identifying the presence or absence of said objects of interest from said depth map and comparing each of said objects of interest to existing tracks comprising previously identified objects of interest; for each said presence of an object of interest, adding said object of interest to one of said existing tracks if said object of interest matches said one existing track, or creating a new track comprising said object of interest if said object of interest does not match any of sai
    Type: Grant
    Filed: July 3, 2007
    Date of Patent: June 21, 2011
    Assignee: ShopperTrak RCT Corporation
    Inventors: Zhiqian Wang, William C. Kastilahn
  • SYSTEM AND PROCESS FOR DETECTING, TRACKING AND COUNTING HUMAN OBJECTS OF INTEREST
    Publication number: 20090010490
    Abstract: A method of identifying, tracking, and counting human objects of interest based upon at least one pair of stereo image frames taken by at least one image capturing device, comprising the steps of: obtaining said stereo image frames and converting each said stereo image frame to a rectified image frame using calibration data obtained for said at least one image capturing device; generating a disparity map based upon a pair of said rectified image frames; generating a depth map based upon said disparity map and said calibration data; identifying the presence or absence of said objects of interest from said depth map and comparing each of said objects of interest to existing tracks comprising previously identified objects of interest; for each said presence of an object of interest, adding said object of interest to one of said existing tracks if said object of interest matches said one existing track, or creating a new track comprising said object of interest if said object of interest does not match any of sai
    Type: Application
    Filed: July 3, 2007
    Publication date: January 8, 2009
    Applicant: ShopperTrak RCT Corporation
    Inventors: Zhiqian Wang, William C. Kastilahn