rate control scheme for base layer in scalable video coding 基于可分级编码基本层的码率控制方法
so scalable video coding ( svc ) is presented . recently, it has been researched intensively and has got noteworthy achievement 于是可伸缩性视频编码(svc)便应运而生,并且成为近几年视频编码领域的研究热点,取得了显著的研究成果。
this thesis has focused on the key technologies of video transmission system, including fine granular scalable video coding, congestion control and error control technology 然而,由于视频的信息量大,且internet又是尽力型网络,因此internet上的视频通信也是一个研究难点。
due to its multiresolution, time / frequency localization and lower time complexity, wavelet is suitable for scalable video coding, which has been applied to coding algorithms such as ezw, spiht and ebcot 随着用于图像压缩的ezw、spiht和ebcot模型及用于视频压缩的3d-ezw、3d-spiht和3d-escot模型的出现,基于小波变换的嵌入编码已成为图像视频压缩研究的主流。
second, an adaptive rate-distortion model is proposed by extending directed acyclic graph model for fine granular scalable video coding . we add rate, original distortion and adaptive scale to the directed acyclic graph model 其次,针对精细粒度可扩展视频编码技术,本文扩展有向无环图模型,在该模型中加入码率,原始失真和自适应因子等属性,建立了自适应率失真模型。