计算机应用研究2018，Vol.35Issue(2)：615-618,623,5.DOI:10.3969/j.issn.1001-3695.2018.02.063
基于特征建模的H.264到AVS-S2监控视频转码快速帧间模式选择算法研究
Fast inter mode decision algorithm for surveillance video transcoding from H.264 to AVS-S2 based on feature modeling
摘要
Abstract
In order to reduce the high computational complexity for surveillance video transcoding from H.264/AVC to AVS-S2,this paper presented a fast inter mode decision algorithm based on feature modeling.The algorithm firstly transcoded a small number of frames in a cascade transcoder and trained a model based on the motion features in H.264/AVC and the corresponding best modes in AVS-S2.Then the remaining frames were quickly transcoded by selecting the candidate modes for AVS-S2 according to the model.The number of candidate modes can be further reduced for the background macroblocks by judging the foreground or background characteristics.Experimental results show that the proposed algorithm efficiently reduces the computational complexity during transcoding.Due to the fact that this model can be updated in real-time according to the video content,this algorithm improved the transcoding performance of better PSNR quality and lower bitrates compared with the previous mode mapping algorithm.关键词
监控视频转码/特征建模/快速帧间模式选择/H.264/AVC/AVS-S2Key words
surveillance video transcoding/feature modeling/fast inter mode decision/H.264/AVC/AVS-S2分类
信息技术与安全科学引用本文复制引用
王萍,李子旭..基于特征建模的H.264到AVS-S2监控视频转码快速帧间模式选择算法研究[J].计算机应用研究,2018,35(2):615-618,623,5.基金项目
国家自然科学基金资助项目(61202180,61133008) （61202180,61133008）
