车载行驶安全监控系统的横向振动误差修正

车载行驶安全监控系统利用CCD图像传感器获取图像．车辆运行过程中由于横向振动等诸多原因容易造成图像模糊，严重影响后续对驾驶员工作状况的检测。基于系统图像数据模型及图像数据采集手段，运用数学模型与傅立叶变换相结合的方法解决由于车辆横向振动造成的图像无法准确判别的问题，经实验结果证明，能够清除横向振动干扰而获得良好的图像，以此有效地监控驾驶员的工作状态并适时作出危险预警。

Lateral Vibration Correction in on-board Driving Safety Monitoring System

On-board driving safety monitoring system acquires images, which are probably blurred due to lateral vibration such as unfixed factors in driving of vehicles. This makes it impossible to detect driving states in the following stages. Image data modeling and image data acquisition of the system are discussed and problems for not correctly recognizing images are solved due to lateral vibration of the vehicle, based on mathematical model and Fourier transform. Experimental results prove that the methods can eliminate vehicles lateral vibration interference to get good image for following processing, as well as the system effectively monitors the driver＇s working state and warns him in case of danger.