Evaluation of Video Detection Systems and Development of Application Guidelines at Signalized Intersections

Download or read book Evaluation of Video Detection Systems and Development of Application Guidelines at Signalized Intersections written by PeiFeng Fu and published by . This book was released on 2010 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report documents the results of a study on evaluating three major video imaging vehicle detection systems (VIVDS) currently deployed in Nevada's urban areas. The report first provides a brief review of the features and functions of some major VIVDSs. The evaluation was based on videos collected at selected intersections in both Northern Nevada and Southern Nevada. The dataset included a total of 10 intersections consisting of 30 intersection approaches and about 48 hours of video for each approach. These videos were directly recorded with detection overlays from the VIVDSs at the sites. The detection accuracy was later verified manually by watching video playbacks in the lab. The performance of the VIVDS was assessed based on the accuracy level, taking into account the total missed and false detections. Missed and false detections were the two major sources of error considered in this study. Specific detection errors and possible causes were discussed for each site. Recommendations were provided for potentially reducing video detection errors. A set of guidelines were also provided for improving VIVDS' performance at existing intersections or future deployments.