Patents by Inventor Chengwei DUAN

Chengwei DUAN 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: 9904856
    Abstract: A method for detecting a target object in a blind area of a vehicle is provided by embodiments of the application. The method includes: acquiring at least one frame of an image generated by shooting a blind area of a vehicle by a shooting device; extracting an image feature of an area where at least one predetermined detection gate is located in the image; and matching the image feature of the area where the predetermined detection gate is located with a matching template of the predetermined detection gate to determine a target object. An apparatus for detecting a target object in a blind area of a vehicle is further provided by embodiments of the application.
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: February 27, 2018
    Assignee: NEUSOFT CORPORATION
    Inventors: Wei Liu, Chengwei Duan, Huai Yuan
  • Patent number: 9519831
    Abstract: A method for detecting a generalized passerby includes: acquiring an input image; determining whether a preset common feature of a wheel exists in the input image; selecting an image window at left side or right side or upper side of a center of a region where the preset common feature of the wheel is located in a case that the preset common feature of the wheel exists in the input image; inputting the selected image window into a preset upper-body classifier; detecting whether an upper body of a passerby exists in the selected image window and outputting a first detection result.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: December 13, 2016
    Assignee: NEUSOFT CORPORATION
    Inventors: Wei Liu, Chengwei Duan, Liying Chai, Bing Yu, Huai Yuan
  • Publication number: 20150339533
    Abstract: A method for detecting a target object in a blind area of a vehicle is provided by embodiments of the application. The method includes: acquiring at least one frame of an image generated by shooting a blind area of a vehicle by a shooting device; extracting an image feature of an area where at least one predetermined detection gate is located in the image; and matching the image feature of the area where the predetermined detection gate is located with a matching template of the predetermined detection gate to determine a target object. An apparatus for detecting a target object in a blind area of a vehicle is further provided by embodiments of the application.
    Type: Application
    Filed: March 2, 2015
    Publication date: November 26, 2015
    Inventors: Wei LIU, Chengwei Duan, Huai Yuan
  • Publication number: 20150186723
    Abstract: A method and an apparatus for detecting a generalized passerby are provided, the method includes: acquiring an input image; determining whether a preset common feature of a wheel exists in the input image; selecting an image window at left side or right side or upper side of a center of a region where the preset common feature of the wheel is located in a case that the preset common feature of the wheel exists in the input image; inputting the selected image window into a preset upper-body classifier; detecting whether an upper body of a passerby exists in the selected image window and outputting a first detection result.
    Type: Application
    Filed: December 8, 2014
    Publication date: July 2, 2015
    Inventors: Wei LIU, Chengwei DUAN, Liying CHAI, Bing YU, Huai YUAN