基于道路标线的交通事故现场摄影测量研究

Application of Photogrammetry in Traffic Accident Scene Measurement Based on Road Mark

论述了基于普通相机的交通事故现场测量技术基本理论,提出了一种利用道路标线作为标定参考物的新的标定方法,在小波多尺度边缘检测基础上,利用Harris角点提取对图像进行分析处理,对影响摄影测量精度的有关参数进行了简要描述,对一个实际事故现场的部分数据进行了分析,验证了设计的算法。

The Basic theory of photogrammetry in accident survey with common CCD camera was introduced. A new calibration strategy using the road mark to replace traditional reference object was proposed. Based on the multi-scale wavelet transformation, the accident scene image was processed to get the cross points with Harris algorithm. Some influence factors was considered to improve the measuring accuracy. A practical measurement sample was present to verify the algorithm,