MPEG-2压缩编码技术原理应用 MPEG是运动图像专家组(Moving Picture Experts Group)的简称，其实质上的名称为国际标准化组织（ISO）和国际电工委员会（IEC）联合技术委员会（JTC）1的第29 分委员会的第11工作组，即ISO/IEC JTC1/SC29/WG11，成立于1988年。其任务是制定世界通用的视音频编码标准。因为，广播电视数字化所产生的海量数据对存储容量、传输带宽、处理能力及频谱资源利用率提出了不切合实际的要求，使数字化难以实现。为此，该专家组基于帧内图像相邻像素间及相邻行间的空间相关性和相邻帧间运动图像的时间相关性，采用压缩编码技术，将那些对人眼视觉图像和人耳听觉声音不太重要的东西及冗余成分抛弃，从而缩减了存储、传输和处理的数据量，提高了频谱资源利用率，制定了如表1所示的一系列MPEG标准,使数字化正在变为现实。其中，MPEG-2是一组用于视音频压缩编码及其数据流格式的国际标准。它定义了编解码技术及数据流的传输协议；制定了MPEG-2解码器之间的共同标准（MPEG-2编码器之间尚无共同标准）。本文以MPEG-2的系统、MPEG-2的编码、及MPEG-2的应用为题，讨论MPEG-2压缩编码技术。
标签： MPEG Experts Picture Moving
上传时间： 2015-12-12
上传用户：ruan2570406
MPEG TS Utils application provides the user with a visual representation of the multiplexed stream structure of MPEG-2 Transport Streams (ISO/IEC 13818-1). The application allows the user to investigate the basic transport stream packets with their fields. The application also allows the user to manipulate with transport streams by filtering specified PIDs and exporting to file, demultiplexing to PES and ES streams, converting multi-program TS to single-program TS.
标签： representation application multiplexed the
上传时间： 2015-12-15
上传用户：小鹏
*--- --- --- --声明--- --- --- -----*/ /* VC6.0下运行通过 此程序为本人苦心所做，请您在阅读的时候，尊重本人的 劳动。可以修改，但当做的每一处矫正或改进时，请将改进 方案，及修改部分发给本人 (修改部分请注名明：修改字样) Email: jink2005@sina.com QQ: 272576320 ——初稿完成：06-5-27 jink2005 补充： 程序存在问题： (1) follow集不能处理：U->xVyVz的情况 (2) 因本人偷懒，本程序为加入文法判断，故 输入的文法必须为LL(1)文法 (3) 您可以帮忙扩充：消除左递归，提取公因子等函数 (4) …… */ /*-----------------------------------------------*/ /*参考书《计算机编译原理——编译程序构造实践》 LL(1)语法分析,例1: ERTWF# +*()i# 文法G[E]:(按此格式输入) 1 E -> TR 2 R -> +TR 3 R -> 4 T -> FW 5 W -> * FW 6 W -> 7 F -> (E) 8 F -> i 分析例句：i*(i)# , i+i# 例2： 编译书5.6例题1 SHMA# adbe# S->aH H->aMd H->d M->Ab M-> A->aM A->e 分析例句：aaabd# */
上传时间： 2016-02-08
上传用户：ayfeixiao
为什么叫H.264 H.264是一种视频高压缩技术，全称是MPEG-4 AVC，用中文说是“活动图像专家组-4的高等视频编码”，或称为MPEG-4 Part10。它是由国际电信标准化部门ITU-T和规定MPEG的国际标准化组织ISO/国际电工协会IEC共同制订的一种活动图像编码方式的国际标准格式，这是我们叫惯了的MPEG中的一种，那为什么叫H.264呢？
上传时间： 2016-03-24
上传用户：lhw888
On-Line MCMC Bayesian Model Selection This demo demonstrates how to use the sequential Monte Carlo algorithm with reversible jump MCMC steps to perform model selection in neural networks. We treat both the model dimension (number of neurons) and model parameters as unknowns. The derivation and details are presented in: Christophe Andrieu, Nando de Freitas and Arnaud Doucet. Sequential Bayesian Estimation and Model Selection Applied to Neural Networks . Technical report CUED/F-INFENG/TR 341, Cambridge University Department of Engineering, June 1999. After downloading the file, type "tar -xf version2.tar" to uncompress it. This creates the directory version2 containing the required m files. Go to this directory, load matlab5 and type "smcdemo1". In the header of the demo file, one can select to monitor the simulation progress (with par.doPlot=1) and modify the simulation parameters.
标签： demonstrates sequential Selection Bayesian
上传时间： 2016-04-07
上传用户：lindor
This demo nstrates how to use the sequential Monte Carlo algorithm with reversible jump MCMC steps to perform model selection in neural networks. We treat both the model dimension (number of neurons) and model parameters as unknowns. The derivation and details are presented in: Christophe Andrieu, Nando de Freitas and Arnaud Doucet. Sequential Bayesian Estimation and Model Selection Applied to Neural Networks . Technical report CUED/F-INFENG/TR 341, Cambridge University Department of Engineering, June 1999. After downloading the file, type "tar -xf version2.tar" to uncompress it. This creates the directory version2 containing the required m files. Go to this directory, load matlab5 and type "smcdemo1". In the header of the demo file, one can select to monitor the simulation progress (with par.doPlot=1) and modify the simulation parameters.
标签： sequential reversible algorithm nstrates
上传时间： 2014-01-18
上传用户：康郎
This demo nstrates the use of the reversible jump MCMC algorithm for neural networks. It uses a hierarchical full Bayesian model for neural networks. This model treats the model dimension (number of neurons), model parameters, regularisation parameters and noise parameters as random variables that need to be estimated. The derivations and proof of geometric convergence are presented, in detail, in: Christophe Andrieu, Nando de Freitas and Arnaud Doucet. Robust Full Bayesian Learning for Neural Networks. Technical report CUED/F-INFENG/TR 343, Cambridge University Department of Engineering, May 1999. After downloading the file, type "tar -xf rjMCMC.tar" to uncompress it. This creates the directory rjMCMC containing the required m files. Go to this directory, load matlab5 and type "rjdemo1". In the header of the demo file, one can select to monitor the simulation progress (with par.doPlot=1) and modify the simulation parameters.
标签： reversible algorithm the nstrates
上传时间： 2014-01-08
上传用户：cuibaigao
The algorithms are coded in a way that makes it trivial to apply them to other problems. Several generic routines for resampling are provided. The derivation and details are presented in: Rudolph van der Merwe, Arnaud Doucet, Nando de Freitas and Eric Wan. The Unscented Particle Filter. Technical report CUED/F-INFENG/TR 380, Cambridge University Department of Engineering, May 2000. After downloading the file, type "tar -xf upf_demos.tar" to uncompress it. This creates the directory webalgorithm containing the required m files. Go to this directory, load matlab5 and type "demo_MC" for the demo.
标签： algorithms problems Several trivial
上传时间： 2014-01-20
上传用户：royzhangsz
中华人民共和国电力行业标准，IEC-61850-7国际标准
上传时间： 2014-01-25
上传用户：CHINA526
看n2实例 #Create a simulator object set ns [new Simulator] #Define different colors for data flows #$ns color 1 Blue #$ns color 2 Red #Open the nam trace file set nf [open out-1.nam w] $ns namtrace-all $nf set f0 [open out0.tr w] set f1 [open out1.tr w] #Define a finish procedure proc finish {} { global ns nf $ns flush-trace #Close the trace file close $nf #Execute nam on the trace file exit 0 } #Create four nodes set n0 [$ns node] set n1 [$ns node] set n2 [$ns node] set n3 [$ns node] #Create links between the nodes $ns duplex-link $n0 $n2 1Mb 10ms
标签： simulator Simulator different Create
上传时间： 2016-07-02
上传用户：wfl_yy
