基于Surfacelet变换和运动估计的自适应教学视频压缩  

Educational Video Compression Method based on Surfacelet Transform Domain and Motion Estimation

作　　者：马宏茹 李硕 MA Hongru;LI Shuo(School of Information,Dalian Jiaotong University,Dalian 116028,China)

机构地区：[1]大连交通大学信息学院,辽宁大连116028

出　　处：《大连交通大学学报》2021年第5期106-110,共5页Journal of Dalian Jiaotong University

摘　　要：为解决传统的教育视频压缩方法未能同时适应摄像机录制视频和屏幕录制视频的问题,采用变换域与运动估计相结合的方式,提出了一种基于Surfacelet变换域和运动估计的教学视频压缩方法,并根据视频帧间相关性,自适应地选取视频帧组,有效的兼顾了两种教育视频的特征.仿真实验证明,该方法不仅具有较高的压缩比,并且能够很好地还原视频内容.In order to solve the problem that the traditional educational video compression method cannot adapt to the camera recording video and the screen recording video at the same time,a combination of transform do-main and motion estimation is adopted,and a teaching video compression method is proposed based on sur-facelet transform domain and motion estimation.According to the correlation between video frames,the video frame group is selected adaptively,which effectively takes into account the characteristics of the two education-al videos.Simulation experiments prove that this method not only has a higher compression ratio,but also can restore video content well.

关 键 词：教育视频 视频压缩 Surfacelet变换 运动估计 运动补偿 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]