Detection of traffic signs based on Hough transform

This paper deals with the detection of circular traffic signs, such as prohibition signs, obligation signs etc. Compared with the existing methods, the proposed method has the following characters: firstly certain colour and shape characters are enhanced to emphasize traffic sign region; Secondly, gradient information based Hough transform is followed to estimate circle centre and radius, Finally, integration and projection method is adopted to extract the precise region of traffic sign. Experiments show that this method is efficient to detect circular traffic signs and can be used in real time system. For the covering abstract see ITRD E140665.

  • Authors:
    • ZHANG, C
    • ZHONG, C
    • ZHANG, W
  • Publication Date: 2007


  • English

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Filing Info

  • Accession Number: 01155237
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD
  • Created Date: Apr 23 2010 10:58AM