摘要
提出一种应用于帧率提升系统的,根据内插帧各匹配块的均值SAD为检测依据的场景切换检测算法,解决场景切换时ME/MC算法因匹配失误产生严重块效应的问题.将当前内插帧的均值SAD_(curr)与前面已生成的内插帧的均值SAD_(pre)相除,所得商与经验阈值进行比较,若大于经验阈值则判定发生场景切换;否则,没有场景切换.帧率提升系统根据判定结果选择不同的算法产生内插帧.实验结果表明;与传统的检测算法相比,本文算法在场景切换检测的准确率上有明显的提升.
This paper proposes a scene change detection algorithm based on the mean SAD of the interpolated frame＇s matching blocks, which is used in frame rate up system. This algorithm is used to solve the serious block effect problems due to mismatch in ME/MC algorithm when the scene is changed. We divide the average of the current interpolated frame SADcurr by the average of the previously generated interpolated frames SADpro and compare the resulting quotient with the empirical threshold, if we find the quotient is greater than the threshold, it is determined that a scene change occurs ; otherwise, there has no scene change. The frame rate up system uses different interpolating algorithms based on the comparison results. Compared with the traditional detection algorithms, the experimental results show that the proposed algorithm has a significant improvement in the accuracy of scene change detection.
作者
段淑玉
陈艳
DUAN Shuyu;CHEN Yan(School of Computer Science and Communication Engineering,Liuzhou 545006,Guangxi University of Science and Technology,China)
出处
《广西科技大学学报》
2018年第4期92-98,共7页
Journal of Guangxi University of Science and Technology
基金
广西壮族自治区中青年教师基础能力提升项目(KY2016LX173)
广西科技大学科学基金项目(校科自1419213)资助
关键词
场景切换检测
块匹配
运动估计
帧率提升
scene change detection
block match
motion estimation
frame rate up
作者简介
段淑玉，硕士，讲师，研究方向：视频图像处理，E-mail：403733451@qq．com．
