Patents by Inventor SIN YU CHEN

SIN YU 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).

  • Vehicle license plate recognition method and system thereof
    Patent number: 8509486
    Abstract: A vehicle license plate recognition method and a system thereof are disclosed. A region where a vehicle license plate image exists is detected according to the edge densities of an input image and a vehicle license plate specification. A text area of the vehicle license plate image is divided into a plurality of character images. The character images are binarized to obtain a plurality of binarized character images. A plurality of characters is recognized from the binarized character images. The characters are recombined to form a character string. The abovementioned steps are repeated to obtain a new character string from another image of the same vehicle, which is captured at a next time point. The character string is compared with the new character string character by character to obtain a comparison result for verifying reliability of recognition through a voting technique.
    Type: Grant
    Filed: October 26, 2011
    Date of Patent: August 13, 2013
    Assignee: National Chiao Tung University
    Inventors: Jun-Wei Hsieh, Sin Yu Chen
  • VEHICLE LICENSE PLATE RECOGNITION METHOD AND SYSTEM THEREOF
    Publication number: 20120106802
    Abstract: A vehicle license plate recognition method and a system thereof are disclosed. A region where a vehicle license plate image exists is detected according to the edge densities of an input image and a vehicle license plate specification. A text area of the vehicle license plate image is divided into a plurality of character images. The character images are binarized to obtain a plurality of binarized character images. A plurality of characters is recognized from the binarized character images. The characters are recombined to form a character string. The abovementioned steps are repeated to obtain a new character string from another image of the same vehicle, which is captured at a next time point. The character string is compared with the new character string character by character to obtain a comparison result for verifying reliability of recognition through a voting technique.
    Type: Application
    Filed: October 26, 2011
    Publication date: May 3, 2012
    Applicant: NATIONAL CHIAO TUNG UNIVERSITY
    Inventors: JUN-WEI HSIEH, SIN YU CHEN