Effect of Camera Angle on Precision of Parameters for Traffic Accident in Video Detection

Traffic monitoring is not only used to collect traffic information but also used to analyze the cause of traffic accident. However, the accuracy of video image detection system is dependent upon many factors such as the camera height, location, and angle above the roadway. There is small number of research in this field at present. This paper discusses the effect of different camera angles on the precision of parameters for analysis of traffic accident. The angle scope ranges from 0 degree to 90 degrees. The result shows that camera angle plays a key role in the precision of parameters for traffic accident analysis. A corresponding relationship existed deeply between the precision of parameters and camera angle. The analytical results lead to recommendations on use of video to detect traffic parameters.