Patents by Inventor Hoang Anh TUAN

Hoang Anh TUAN 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).

  • Symbol recognition device and traffic sign recognition device
    Patent number: 9959473
    Abstract: In a symbol recognition device, each histogram computation module receives an image of each partial region of a recognition target region in a binarized image and computes a frequency distribution of pixels of a given color in each line or column in the partial region; each run length determination module receives an image of each partial region of the recognition target region and determines whether or not a line or column of pixels of the given color having a certain length is present in the partial region; a control module feeds pixel information of the partial regions, read by scanning the binarized image stored in the image memory, into the histogram computation modules and the run length determination modules; a determination module determines a symbol included in the binarized image based on computation results of the histogram computation modules and determination results of the run length determination modules.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: May 1, 2018
    Assignee: HIROSHIMA UNIVERSITY
    Inventors: Tetsushi Koide, Hoang Anh Tuan, Masaharu Yamamoto, Tsubasa Mishima
  • SYMBOL RECOGNITION DEVICE AND TRAFFIC SIGN RECOGNITION DEVICE
    Publication number: 20160210520
    Abstract: In a symbol recognition device, each histogram computation module receives an image of each partial region of a recognition target region in a binarized image and computes a frequency distribution of pixels of a given color in each line or column in the partial region; each run length determination module receives an image of each partial region of the recognition target region and determines whether or not a line or column of pixels of the given color having a certain length is present in the partial region; a control module feeds pixel information of the partial regions, read by scanning the binarized image stored in the image memory, into the histogram computation modules and the run length determination modules; a determination module determines a symbol included in the binarized image based on computation results of the histogram computation modules and determination results of the run length determination modules.
    Type: Application
    Filed: March 29, 2016
    Publication date: July 21, 2016
    Inventors: Tetsushi KOIDE, Hoang Anh TUAN, Masaharu YAMAMOTO, Tsubasa MISHIMA