Patents by Inventor Yaofei Feng

Yaofei Feng 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).

  • Hybrid Parking Detection
    Publication number: 20150117705
    Abstract: The present invention combines the strengths of the background-subtraction and edge-detection algorithm for parking detection. Being computationally efficient, the background-subtraction algorithm is used whenever possible. On the other hand, being robust, the edge-detection algorithm is used at calibration points, or when the background-subtraction algorithm cannot reliably determine the parking state.
    Type: Application
    Filed: January 5, 2014
    Publication date: April 30, 2015
    Applicant: ChengDu HaiCun IP Technology LLC
    Inventors: Guobiao ZHANG, Yaofei FENG, Bruce Bing WANG
  • Parked vehicle detection based on edge detection
    Patent number: 8923565
    Abstract: The present invention discloses a method for detecting parked vehicles based on edge detection. For each parking space, its boundary comprises an exposed edge, which is not occluded by any parked vehicle. Its primary detected edges are the detected edges that are substantially parallel to the exposed edge. A parking space is detected as occupied if its primary detected edges satisfy at least one of these conditions: (1) their total number is more than a pre-determined minimum number; and/or, (2) their total length is more than a pre-determined minimum length.
    Type: Grant
    Filed: January 5, 2014
    Date of Patent: December 30, 2014
    Assignees: ChengDu HaiCun IP Technology LLC
    Inventors: Guobiao Zhang, Yaofei Feng, Bruce Bing Wang