基于道路监控的高速公路作业区碰撞风险预警

王博,刘昌赫,张驰,张敏,邬贵冬

Crash risk early warning in highway work zone based on road surveillance camera

Bo WANG,Changhe LIU,Chi ZHANG,Min ZHANG,Guidong WU

图 2 相机标定与坐标系投影

Fig.2 Camera calibration and coordinate system projection