一种图像抖动下的目标位置测量方法

根据舰载摄像机获取的图像序列抖动现象,提出了一种基于单目视觉测量技术的运动目标位置测量方法.该方法利用数字图像处理算法提取目标的质心,以灰度投影差值作为特征量估计图像当前帧的抖动矢量,结合摄像机的二维运动模型,计算目标去除抖动后的坐标.将此方法应用于运动轨迹已知的运动目标图像序列,能够去除舰船抖动的影响,获取目标的实际位置,具有很好的稳定性.

Research on Target Position Measurement Based on Jitter Image

According to the jitter image sequence acquired by ship-borne camera,this paper proposed a moving target position measurement method based on monocular vision.This method firstly used digital image processing algorithms to extract the target centroid.Then it estimated image dithering vector of the current frame with gray projection difference.At last,it calculated the target centroid by combining with two-dimensional motion model of the camera.This method was applied in the image sequence of target.And the trajectory of the moving target is known.It can calculate actual location of the target by removing the effect of ship jitter,and it has a good stability.