VIDEO IMAGE PROCESSING TO CREATE A SPEED SENSOR

Image processing has been applied to traffic analysis in recent years with different goals. In this report, a new approach is presented for extracting vehicular speed information, given a sequence of real-time traffic images. The authors extract moving edges and process the resulting edge information to obtain quantitative geometric measurements of vehicles. This differs from existing approaches because the authors use simple geometric relations obtained directly from the image instead of using reference objects to perform camera calibrations. This method allows the recovery of the physical descriptions of traffic scenes without explicit camera calibration. In this report, extensive experiments using images from active Transportation Management System (TMS) freeway cameras are reported. The results presented in this report demonstrate the validity of the authors' approach, which requires neither direct camera control nor placement of a calibration object in the environment. The authors further argue that it is straightforward to extend this method to other related traffic applications.

• Record URL:
  http://www.wsdot.wa.gov/Research/Reports/400/465.1.htm
• Record URL:
  http://www.wsdot.wa.gov/research/reports/fullreports/465.1.pdf
• 
• Corporate Authors:

  Washington State Transportation Center

  University of Washington, 1107 NE 45th Street, Suite 535
  Seattle, WA  United States  98105

  Washington State Department of Transportation

  Transportation Building, 310 Maple Park Avenue SE, P.O. Box 47300
  Olympia, WA  United States  98504-7300

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Dailey, Donald J
  • Li, Li
  • 0000-0002-7580-3559
• Publication Date: 2000-4

Language

• English

Media Info

• Features: Appendices; Figures; References;
• Pagination: 51 p.

Subject/Index Terms

• TRT Terms: Image processing; Motor vehicles; Speed; Speed detectors; Television cameras; Video imaging detectors
• Subject Areas: Highways; Operations and Traffic Management; I73: Traffic Control;

Filing Info

• Accession Number: 00795421
• Record Type: Publication
• Report/Paper Numbers: WA-RD 465.1,, Research Report
• Contract Numbers: Agreement T9903, Task 75
• Files: TRIS, ATRI, USDOT, STATEDOT
• Created Date: Jul 28 2000 12:00AM