随着经济发展技术的进步,交通安全的管理手段快速提高,运用各种监控摄像设备、汽车行驶记录仪等提取的视频图像资料,通过分析、比对和计算,可解决交通事故司法鉴定中的许多问题。本文介绍了根据事故现场固定监控摄像记录和其它车辆的行驶记录仪记录的视频录像对目标车辆车速进行分析计算的两类问题。 With the development of economic development technology, traffic safety management tools to rapidly improve the use of a variety of surveillance cameras, car tachographs and other extracted video image data, through analysis, comparison and calculation, to solve the traffic accident forensic many questions. This paper introduces two kinds of problems of analyzing and calculating the speed of the target vehicle based on the video records recorded by the fixed surveillance camera record of the accident site and the tachograph of other vehicles.