MPEG-4播放技術(shù)

通信工程論文編號(hào):TX391  論文字?jǐn)?shù):13207,頁(yè)數(shù):38

目    錄
摘要 1
Abstract 2
第1章 緒論 4
1.1 課題設(shè)計(jì)現(xiàn)狀、發(fā)展和背景 4
1.2 MPEG-4簡(jiǎn)單介紹 7
1.3 內(nèi)容安排 8
第2章 對(duì)MPEG-4的分析解釋 9
2.1 MPEG-4 標(biāo)準(zhǔn)的特點(diǎn)和功能 10
2.2 MPEG-4的視頻數(shù)據(jù)流結(jié)構(gòu) 11
2.3 MPEG的圖像類型及碼流組成 12
第3章 MPEG-4的關(guān)鍵技術(shù) 14
3.1 核心思想 14
3.2 關(guān)鍵技術(shù) 15
3.2.1. 視頻對(duì)象提取技術(shù) 15
3.2.2. VOP視頻編碼技術(shù) 16
3.2.3. 視頻編碼可分級(jí)性技術(shù) 17
3.2.4. 運(yùn)動(dòng)估計(jì)與運(yùn)動(dòng)補(bǔ)償技術(shù) 17
第4章 MPEG-4播放器系統(tǒng)簡(jiǎn)介 20
4.1 系統(tǒng)硬件平臺(tái) 20
4.2 系統(tǒng)流程圖 20
4.3 代碼分析 21
4.3.1. 系統(tǒng)初始化 21
4.3.2. 系統(tǒng)運(yùn)行 30
4.3.3.系統(tǒng)關(guān)閉 34
第5章 畢業(yè)設(shè)計(jì)總結(jié) 35
致謝 37
參考文獻(xiàn) 38

摘要

　　當(dāng)今時(shí)代，信息技術(shù)和計(jì)算機(jī)互聯(lián)網(wǎng)飛速發(fā)展，在此背景下，多媒體信息已成為人類獲取信息的最主要載體，同時(shí)也成為電子信息領(lǐng)域技術(shù)開(kāi)發(fā)和研究的熱點(diǎn)。多媒體信息經(jīng)數(shù)字化處理后具有易于加密、抗干擾能力強(qiáng)、可再生中繼等優(yōu)點(diǎn)，但同時(shí)也伴隨海量數(shù)據(jù)的產(chǎn)生，這對(duì)信息存儲(chǔ)設(shè)備及通信網(wǎng)絡(luò)均提出了很高要求，從而成為阻礙人們有效獲取和使用信息的重大瓶頸。
 因此研究高效的多媒體數(shù)據(jù)壓縮編碼方法，以壓縮形式存儲(chǔ)和傳輸數(shù)字化的多媒體信息具有重要意義。作為多媒體技術(shù)的核心及關(guān)鍵，多媒體數(shù)據(jù)壓縮編碼近年來(lái)在技術(shù)及應(yīng)用方面都取得了長(zhǎng)足進(jìn)展，它的進(jìn)步和完善正深刻影響著現(xiàn)代社會(huì)的方方面面。
關(guān)鍵詞：MPEG-4 數(shù)據(jù)壓縮 視頻編碼 視聽(tīng)對(duì)象 基于內(nèi)容編碼 視頻對(duì)象提取 運(yùn)動(dòng)估計(jì)與補(bǔ)償

Abstract

The present era, the information technology and the computer Internet rapid development, under this background, the multimedia information has become the humanity to gain the information most main carrier, simultaneously also becomes the electronic information domain technology development and the research hot spot. The multimedia information have easy after digitized processing to encrypt, ant jamming ability strongly, merits and so on renewable relaying, but simultaneously also follows the magnanimous data the production, this proposed to the information storage equipment and the correspondence network requests very high, thus becomes hinders the people effectively to gain and the use information significant bottleneck. Therefore studies the highly effective multimedia data compression code method, reduces the form memory and the transmission digitization multimedia information has the vital significance. As the multimedia technical core and the key, the multimedia data compression code in recent years have all made the considerable progress in the technology and the application aspect, its progress and the consummation are affecting modern society's aspects profoundly.

Keyword: Data compression ， frequency code ，information ，simultaneously