Self calibrating monocular camera measurement of traffic parameters.

Details

• Creators:
  Dailey, Daniel J.
• Corporate Creators:
  Transportation Northwest Regional Center X (TransNow) (UTC)
• Corporate Contributors:
  University of Washington. Dept. of Electrical Engineering ; United States. Department of Transportation. Office of the Secretary
• Subject/TRT Terms:
  • Traffic flow
  • Traffic surveillance
  • Cameras
  • Traffic measurement
  • Cameras--Calibration--Washington (State)
  • Monoculars--Calibration--Washington (State)
  • Traffic flow--Washington (State)--Measurement
  • Traffic monitoring--Washington (State)
• Publication/ Report Number:
  TNW2009-16
• Resource Type:
  Tech Report
• Geographical Coverage:
  Washington
• Edition:
  Final research report.
• Corporate Publisher:
  Transportation Northwest (TransNow) UTC
• Abstract:
  This proposed project will extend the work of previous projects that have developed algorithms and software ; to measure traffic speed under adverse conditions using un-calibrated cameras. The present implementation ; uses the WSDOT CCTV cameras mounted along freeway segments and has an interface for automated camera ; calibration and traffic speed and speed variance measuring and recording. The calibration algorithm is ; implemented as an operator in a pipelined architecture using the Java Advanced Imaging package. The ; algorithm uses features found on the freeway, such as fog lines and lane markers, to calibrate the camera. ; Arterials have different features, such as turn arrows and stop bars, that can be used for calibration. This effort ; will develop algorithms that calibrates cameras based on common features found on arterials and will ; implement the algorithm as a Java operator so that it extends the capabilities of the software to arterials. The ; result will be a portable system that can function on both freeways and arterials with only limited infrastructure ; investment. The utility of this project is to leverage existing software to make traffic parameter measurements ; on arterials where there are no loops, and to calibrate traffic measurement and management devices using these ; measurements.
  More +
• Format:
  PDF
• Funding:
  DTRT07-G-0010
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/17447/dot_17447_DS1.pdf
• File Type:
  [PDF - 1.37 MB]
• Collection(s):
  University Transportation Centers ; US Transportation Collection
• Main Document Checksum:
  urn:sha256:90a6ab3ced08583d60fa4d72a2bfa6ccd7062dad1ccc5096d6f5039159648a73