%0 Journal Article
%T Rate distortion model based on dual parameters Weibull distribution<br>基于双参数Weibull分布的视频编码率失真模型的研究
%A Huo Yan
%A Jing Tao
%A Li Sheng-Hong
%A <br>霍炎
%A 荆涛
%A 李生红
%J 物理学报
%D 2010
%I 
%X According to analysis of discrete cosine transform (DCT) coefficients of video sequence,a new DCT coefficients statistical model based on Weibull probability density function(PDF) is introduced. Compared with Laplacian PDF and Cauchy PDF,the model can describe properties of DCT of video sequences much better. In addition,according to the new statistical model and theory of entropy coding,the rate quantization (RQ) and distortion quantization (DQ) functions are proposed separately. Based on the simplified an...
%K Weibull probability density function
%K rate distortion model
%K quantization parameter<br>Weibull概率密度函数，
%K 率失真模型，
%K 量化参数
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=2A8BB6C1455A122F90130DEF6CA4DDF1&yid=140ECF96957D60B2&vid=6AC2A205FBB0EF23&iid=0B39A22176CE99FB&sid=EE7D0B10C851F35D&eid=9C230FD2B3A7F308&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=0