用于实时数字稳像的灰度投影算法研究  

Real-Time Digital Image Stabilization System Based on Gray Projection Algorithm

作　　者：汪小勇[1] 李奇[1] 徐之海[1] 冯华君[1] 陈跃庭[1] 

机构地区：[1]浙江大学现代光学仪器国家重点实验室,杭州310027

出　　处：《光子学报》2006年第8期1268-1271,共4页Acta Photonica Sinica

基　　金：浙江省教育厅科研项目(20051007);浙江大学光学仪器国家重点实验室开放课题(LMOI-0401);嘉兴市科技计划资助(No.20043009)

摘　　要：基于灰度投影算法构建了一个实时数字图像稳定系统,阐述了灰度投影算法应用于数字稳像的基本问题.深入分析和研究了算法在稳像系统中的中值滤波、区域选择、参考帧选择等优化问题.该系统的硬件由振动平台、光学镜头、CCD、图像采集卡和计算机构成;软件编程基于DirectShow平台,通过VisualC++实现.通过对稳像试验结果的定量评价与分析表明,该灰度投影稳像算法具有简捷、快速、准确的特征,是实现摄像机实时数字稳像的一种切实可行的方法.A real-time digital image stabilization system was presented, which was based on the gray projection algorithm. It demonstrates the application of gray projection algorithm in the field of digital image stabilization,as well as the algorithm optimizations of median filter, region selection and regerenced frame selection in image stabilization system. The hardware of this system consists of vibration platform, optical lens,CCD, A/D card and computer. The software programming is implemented in Visual C＋＋ programming environment on the DirectShow platform. Through quantitative analysis and evaluation, the result of image stabilization test shows the convenient,quick and accurate characteristics of gray projection algorithm. Also,it demonstrates itself as a feasible approach for real--time digital stabilization of cameras.

关 键 词：稳像系统 灰度投影算法 实时图像处理 中值滤波 

分 类 号：TN942.2[电子电信—信号与信息处理]