Mobile mapping for the automated analysis of road signage and delineation

A portable mobile stereo vision system designed for the assessment of road signage and delineation (lines and road studs or `cat eyes') in low light conditions is presented. This novel system allows both geometric and photometric measurements to be made on objects in a scene. Using the system, it has been shown that retro-reflectors, and in particular road signs, can be identified by nature of their reflective properties. In addition, a novel imaging application has been investigated that facilitates the detection of defective road studs. Any objects examined can also be positioned on a national grid through the fusion of stereo vision with global positioning system technology. Automated feature extraction and analysis routines make the system fully autonomous. (A)

  • Availability:
  • Authors:
    • MCLOUGHLIN, S
    • DEEGAN, C
    • MULVIHILL, C
    • FITZGERALD, C
    • MARKHAM, C
  • Publication Date: 2008

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 01095485
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD
  • Created Date: Apr 25 2008 9:29AM