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CONTEXT-based

A high quality VC++ source code implementing the very important CONTEXT-based adaptive arithmetic co

A high quality VC++ source code implementing the very important CONTEXT-based adaptive arithmetic coder.

標(biāo)簽： CONTEXT-based implementing arithmetic important

上傳時(shí)間： 2015-04-10

上傳用戶：changeboy
CONTEXT-based adaptive binary arithmetic coding in the H.264AVC video compression

CONTEXT-based adaptive binary arithmetic coding in the H.264AVC video compression

標(biāo)簽： CONTEXT-based compression arithmetic adaptive

上傳時(shí)間： 2015-07-04

上傳用戶：wanghui2438
CONTEXT-based adaptive binary arithmetic coding in the H.264AVC video compression standard

CONTEXT-based adaptive binary arithmetic coding in the H.264AVC video compression standard

標(biāo)簽： CONTEXT-based compression arithmetic adaptive

上傳時(shí)間： 2016-07-16

上傳用戶：123啊
H264AVC的CAVLC編碼算法研究及FPGA實(shí)現(xiàn).rar

H.264/AVC是國(guó)際電信聯(lián)盟與國(guó)際標(biāo)準(zhǔn)化組織/國(guó)際電工委員會(huì)聯(lián)合推出的活動(dòng)圖像編碼標(biāo)準(zhǔn)，簡(jiǎn)稱H.264。作為最新的國(guó)際視頻編碼標(biāo)準(zhǔn)，H.264/AVC與MPEG-4、H.263等視頻編碼標(biāo)準(zhǔn)相比，性能有了很大的提高，并已在流媒體、數(shù)字電視、電話會(huì)議、視頻存儲(chǔ)等諸多領(lǐng)域得到廣泛的應(yīng)用。本論文的研究課題是基于H.264/AVC視頻編碼標(biāo)準(zhǔn)的CAVLC(CONTEXT-based Adaptive Variable Length Coding，基于上下文的自適應(yīng)可變長(zhǎng)編碼)編碼算法研究及FPGA實(shí)現(xiàn)。對(duì)于變換后的熵編碼，H.264/AVC支持兩種編碼模式：基于上下文的可變長(zhǎng)編碼(CAVLC)和基于上下文的自適應(yīng)算術(shù)編碼(CABAC，CONTEXT-based Adaptive BinaryArithmetic Coding)。在H.264/AVC中，盡管CAVLC算法也是采用了VLC編碼，但是同以往標(biāo)準(zhǔn)不同，它所有的編碼都是基于上下文進(jìn)行。這種方法比傳統(tǒng)的查單一表的方法提高了編碼效率，但也增加了設(shè)計(jì)上的困難。作者在全面學(xué)習(xí)H.264/AVC協(xié)議和深入研究CAVLC編碼算法的基礎(chǔ)上，確定了并行編碼的CAVLC編碼器結(jié)構(gòu)框圖，并總結(jié)出了影響CAVLC編碼器實(shí)現(xiàn)的瓶頸。針對(duì)這些瓶頸，對(duì)CAVLC編碼器中的各個(gè)功能模塊進(jìn)行了優(yōu)化設(shè)計(jì)，這些優(yōu)化設(shè)計(jì)包括多參考?jí)K的表格預(yù)測(cè)法、快速查找表法、算術(shù)消除法等。最后，用Verilog硬件描述語(yǔ)言對(duì)所設(shè)計(jì)的CAVLC編碼器進(jìn)行了描述，用EDA軟件對(duì)其主要功能模塊進(jìn)行了仿真，并在Cyclone II系列EP2C20F484的FPGA上驗(yàn)證了它們的功能。結(jié)果表明，該CAVLC編碼器各編碼單元的編碼速度得到了顯著提高且均能滿足實(shí)時(shí)通信要求，為整個(gè)CAVLC編碼器的實(shí)時(shí)通信提供了良好的基礎(chǔ)。

標(biāo)簽： CAVLC H264 FPGA 264

上傳時(shí)間： 2013-06-22

上傳用戶：diamondsGQ
H264AVC的CAVLC編碼算法研究及FPGA實(shí)現(xiàn)

H.264/AVC是國(guó)際電信聯(lián)盟與國(guó)際標(biāo)準(zhǔn)化組織/國(guó)際電工委員會(huì)聯(lián)合推出的活動(dòng)圖像編碼標(biāo)準(zhǔn)，簡(jiǎn)稱H.264。作為最新的國(guó)際視頻編碼標(biāo)準(zhǔn)，H.264/AVC與MPEG-4、H.263等視頻編碼標(biāo)準(zhǔn)相比，性能有了很大的提高，并已在流媒體、數(shù)字電視、電話會(huì)議、視頻存儲(chǔ)等諸多領(lǐng)域得到廣泛的應(yīng)用。本論文的研究課題是基于H.264/AVC視頻編碼標(biāo)準(zhǔn)的CAVLC(CONTEXT-based Adaptive Variable Length Coding，基于上下文的自適應(yīng)可變長(zhǎng)編碼)編碼算法研究及FPGA實(shí)現(xiàn)。對(duì)于變換后的熵編碼，H.264/AVC支持兩種編碼模式：基于上下文的可變長(zhǎng)編碼(CAVLC)和基于上下文的自適應(yīng)算術(shù)編碼(CABAC，CONTEXT-based Adaptive BinaryArithmetic Coding)。在H.264/AVC中，盡管CAVLC算法也是采用了VLC編碼，但是同以往標(biāo)準(zhǔn)不同，它所有的編碼都是基于上下文進(jìn)行。這種方法比傳統(tǒng)的查單一表的方法提高了編碼效率，但也增加了設(shè)計(jì)上的困難。作者在全面學(xué)習(xí)H.264/AVC協(xié)議和深入研究CAVLC編碼算法的基礎(chǔ)上，確定了并行編碼的CAVLC編碼器結(jié)構(gòu)框圖，并總結(jié)出了影響CAVLC編碼器實(shí)現(xiàn)的瓶頸。針對(duì)這些瓶頸，對(duì)CAVLC編碼器中的各個(gè)功能模塊進(jìn)行了優(yōu)化設(shè)計(jì)，這些優(yōu)化設(shè)計(jì)包括多參考?jí)K的表格預(yù)測(cè)法、快速查找表法、算術(shù)消除法等。最后，用Verilog硬件描述語(yǔ)言對(duì)所設(shè)計(jì)的CAVLC編碼器進(jìn)行了描述，用EDA軟件對(duì)其主要功能模塊進(jìn)行了仿真，并在Cyclone II系列EP2C20F484的FPGA上驗(yàn)證了它們的功能。結(jié)果表明，該CAVLC編碼器各編碼單元的編碼速度得到了顯著提高且均能滿足實(shí)時(shí)通信要求，為整個(gè)CAVLC編碼器的實(shí)時(shí)通信提供了良好的基礎(chǔ)。

標(biāo)簽： CAVLC H264 FPGA 264

上傳時(shí)間： 2013-06-04

上傳用戶：libenshu01
The Joint Video Team (JVT) of ISO/IEC MPEG and ITU-T VCEG are finalising a new standard for the cod

The Joint Video Team (JVT) of ISO/IEC MPEG and ITU-T VCEG are finalising a new standard for the coding (compression) of natural video images. The new standard [1] will be known as H.264 and also MPEG-4 Part 10, “Advanced Video Coding”. The standard specifies two types of entropy coding: CONTEXT-based Adaptive Binary Arithmetic Coding (CABAC) and Variable-Length Coding (VLC). This document provides a short introduction to CABAC. Familiarity with the concept of Arithmetic Coding is assumed.

標(biāo)簽： finalising standard Joint ITU-T

上傳時(shí)間： 2015-12-08

上傳用戶：561596
The Joint Video Team (JVT) of ISO/IEC MPEG and ITU-T VCEG are finalising a new standard for the cod

The Joint Video Team (JVT) of ISO/IEC MPEG and ITU-T VCEG are finalising a new standard for the coding (compression) of natural video images. The new standard [1] will be known as H.264 and also MPEG-4 Part 10, “Advanced Video Coding”. The standard specifies two types of entropy coding: CONTEXT-based Adaptive Binary Arithmetic Coding (CABAC) and Variable-Length Coding (VLC). The Variable-Length Coding scheme, part of the Baseline Profile of H.264, is described in this document.

標(biāo)簽： finalising standard Joint ITU-T

上傳時(shí)間： 2013-12-21

上傳用戶：yuzsu
This book presents an insightful view of XML that places this emerging technology in the context of

This book presents an insightful view of XML that places this emerging technology in the context of the ongoing Web revolution. Written for business and technical professionals, this book revals the true value of XML for distributed information systems. It explains how XML is transforming the way organizations manage data and build software systems details the opportunities the language offers for organizatoins that understand tis significance and potential impact and explains how XML and Web services reflect a fundamental shift in software construction-from monolithic applications to software based on the composition of simple parts.

標(biāo)簽： insightful technology presents emerging

上傳時(shí)間： 2015-09-24

上傳用戶：思琦琦
A stack-based threaded approach would require that stack space be reserved for each execution contex

A stack-based threaded approach would require that stack space be reserved for each execution context

標(biāo)簽： stack-based execution approach reserved

上傳時(shí)間： 2013-12-23

上傳用戶：xymbian
02 calgary PhD A Java-Based Wireless Framework for Location-Based Services Applications.pdf

資料->【E】光盤論文->【E1】斯坦福博士論文->02 calgary PhD A Java-Based Wireless Framework for Location-Based Services Applications.pdf

標(biāo)簽： Location-Based Applications Java-Based Framework

上傳時(shí)間： 2013-07-02

上傳用戶：亞亞娟娟123

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CONTEXT-based

A high quality VC++ source code implementing the very important CONTEXT-based adaptive arithmetic co

CONTEXT-based adaptive binary arithmetic coding in the H.264AVC video compression

CONTEXT-based adaptive binary arithmetic coding in the H.264AVC video compression standard

H264AVC的CAVLC編碼算法研究及FPGA實(shí)現(xiàn).rar

H264AVC的CAVLC編碼算法研究及FPGA實(shí)現(xiàn)

The Joint Video Team (JVT) of ISO/IEC MPEG and ITU-T VCEG are finalising a new standard for the cod

The Joint Video Team (JVT) of ISO/IEC MPEG and ITU-T VCEG are finalising a new standard for the cod

This book presents an insightful view of XML that places this emerging technology in the context of

A stack-based threaded approach would require that stack space be reserved for each execution contex

02 calgary PhD A Java-Based Wireless Framework for Location-Based Services Applications.pdf