EVALUATION OF VIDEO RECOGNITION EQUIPMENT FOR NUMBER-PLATE MATCHING. SECOND INTERNATIONAL CONFERENCE ON ROAD TRAFFIC MONITORING

This paper describes how a number-plate recogniser unit (NRU) developed by computer recognition systems Ltd (CRS) have been evaluated for transport planning purposes. This has required both laboratory and field trials. Topics covered include a detailed statistical analysis of the error rates associated with the different number-plate syntaxes and character sets currently in use, under a wide variety of conditions. From this information statistical procedures for matching complete and partial registration data and for coping with spurious matches in origin/destination, journey time and entry-exit flows in a network are being devised to take into account the error characteristics of the survey technique, which involves an analysis of the errors detected during trials. The physical issues involved in using automated registration plate recognition are also being studied such as the choice of camera equipment, location of test sites and weather conditions. (Author/TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0852963734
• Corporate Authors:

  Institution of Electrical Engineers

  Savoy Place
  London WC2R 0BL, NY  England  10016-5997
• Authors:
  • Williams, P G
  • KIRBY, H R
  • Montgomery, F O
  • Boyle, R D
• Publication Date: 1989

Media Info

• Pagination: p. 89-93
• Serial:
  • Publication of: INSTITUTION OF ELECTRICAL ENGINEERS
  • Publisher: Institution of Electrical Engineers
  • ISSN: 0537-9989

Subject/Index Terms

• TRT Terms: Automatic control; Automation; Errors; License plates; Origin and destination; Television; Traffic flow; Traffic surveys; Travel time; Trip length
• ITRD Terms: 6471: Analysis (math); 3882: Automatic; 6440: Error; 697: Journey time; 1346: Number plate; 687: Origin destination traffic; 6949: Television; 671: Traffic flow; 676: Traffic survey
• Subject Areas: Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 00493057
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 0-85296373-4
• Files: ITRD, TRIS
• Created Date: May 31 1990 12:00AM