【摘要】 提出基于视觉伺服的汽车几何参数测量方法。通过视频图像采集系统采集汽车图像,应用Sobel算子得到边缘增强图像,应用Hough变换得到图像的特征点,利用特征点与摄像机光轴偏差驱动伺服机构,通过伺服机构的运动计算出汽车的几何参数。研制了原理性试验样机,并对所提出的方法进行了试验验证。更多还原

【Abstract】 The visual servo-based measuring method for vehicle geometric parameters is presented in this paper.The vehicle images are obtained by using video image acquisition system.Sobel operator is applied to get edge enhanced images.The characteristic points are detected with Hough transform.The servo unit is actuated by the departure of characteristic points from optical axis of video camera.Finally,vehicle geometric parameters are obtained by calculating the motor steps in servo unit.The proposed method is verified by the tests conducted on prototype produced.更多还原