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http://dx.doi.org/10.5392/JKCA.2021.21.01.119

A Study on the Performance Characteristics of Image Vehicle Detectors Depending on the Environment  

Oh, Ju-Sam (한국건설기술연구원 미래융합연구본부)
Kim, Jin-Woo (한국건설기술연구원 미래융합연구본부)
Publication Information
The Journal of the Korea Contents Association / v.21, no.1, 2021 , pp. 119-128 More about this Journal
Abstract
The most typical method to generate traffic information is installing vehicle detectors and collecting various traffic variables. The information collection accuracy of a vehicle detector affects the reliability of the generated traffic information. The most universal vehicle detector is an image detector. This study installed a magnetic detector in the same position as an image detector and evaluated the accuracy of traffic volume and speed data depending on a variety of environment. Based on the evaluation, more errors occurred as the image detector was placed farther from the camera, whereas more errors were found to occur during the night rather than the day. Although rainfall did not affect the collection of traffic volume, it negatively affected speed data collection. Therefore, an analysis of the camera's view angle and its optimization depending on the camera installation position and height are required to enhance the currently operated image detector performance. It is judged that a separate performance evaluation criterion should be prepared in a bad weather environment.
Keywords
Magnetic Detector; Image Detector; Volume; Speed; Performance Evaluation Index;
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