基于零检测和矢量滤波的帧频提升算法  

Frame Rate Up-Conversion Algorithm Based on Zero Detection and Vector Filter

作　　者：罗韬[1] 姚素英[2] 高静[2] 

机构地区：[1]天津大学计算机科学与技术学院,天津300072 [2]天津大学电子信息工程学院,天津300072

出　　处：《天津大学学报》2009年第8期702-706,共5页Journal of Tianjin University(Science and Technology)

基　　金：国家自然科学基金资助项目(60576025);天津市科委技术攻关基金资助项目(04318451)

摘　　要：针对格式转换领域提出了一种自适应帧频提升算法.该算法通过使用改进的三步搜索(ITSS)算法进行运动估计,并引入零检测和矢量滤波器对运动矢量进行修正.另外,运动补偿过程中采用的自适应加权算法可以有效地消除噪声的影响,保持图像中的运动边界的同时有效减小插值误差,增加适用性,提高图像质量.实验结果表明,该算法计算简便且易实现,具有较好的信噪比和视觉效果.A self-adaptive frame rate up-conversion algorithm for video format conversion was proposed in the paper. Improved 3-step block-matching （ITSS） algorithm was used for motion estimation algorithm. The motion vector was revised by zero detection and vector filter. In addition,weighted-adaptive motion-compensation interpolation （WAMCI）can effectively reduce the impact of noise,remain the moving boundaries of images and reduce the interpolation error effectively,increase the adaptability and improve the quality of image. Experimental results show that the method is easy to compute and realize, and has a better signal-to-noise ratio and visual performance.

关 键 词：帧频提升 运动估计 运动补偿 零检测 矢量滤波器 

分 类 号：TN941.3[电子电信—信号与信息处理]