一种基于灰度投影算法的电子稳像方法  

An Electronic Image Stabilization Method Based on Projection Algorithm

作　　者：朱娟娟[1] 郭宝龙[1] 冯宗哲[1] 

机构地区：[1]西安电子科技大学机电工程学院ICIE研究所,西安710071

出　　处：《光子学报》2005年第8期1266-1269,共4页Acta Photonica Sinica

基　　金：国家自然科学基金资助(69975015);教育部优秀青年教师计划项目资助

摘　　要：针对图像序列的抖动,研究了摄像机的抖动和正常扫描这两种运动的特点,提出了一种带运动修正的投影稳像算法PMCA.该算法首先利用灰度投影算法求出原始序列运动矢量,然后采用平均值滤波对这些运动矢量进行了处理,为了防止由前一稳定帧补偿带来的错误传播,又做了运动修正,使用原始帧代替稳定帧作为待补偿帧.实验结果表明PMCA算法可以明显减轻序列抖动现象,而且能实时跟随真实扫描场景.An analysis of the causes of image motion is made and a research on the characteristics of the unwanted camera motion and the intentional camera movement is carried out. And then an EIS method based on projection algorithm PMCA is presented. Original estimated motion vectors are smoothed through a moving average filter. An error propagation control method is used to prevent boundary error. Experimental results show that this algorithm can effectively smooth out the unwanted camera motion and follow the intentional camera movement.

关 键 词：电子稳像 投影算法 运动估计 运动修正 运动补偿 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]