發(fā)布時(shí)間：2018-05-31 03:55

  本文選題：H.264 + 視頻壓縮��； 參考：《安徽大學(xué)》2014年碩士論文

【摘要】：隨著視頻壓縮技術(shù)和網(wǎng)絡(luò)技術(shù)的快速發(fā)展,視頻監(jiān)控系統(tǒng)作為安防系統(tǒng)的重要組成部分被廣泛應(yīng)用于日常生活的各個(gè)領(lǐng)域。相對(duì)于傳統(tǒng)的視頻監(jiān)控系統(tǒng)而言,基于H.264的網(wǎng)絡(luò)監(jiān)控系統(tǒng)成本低、穩(wěn)定性高、實(shí)時(shí)性好,具有廣闊的應(yīng)用前景。本文具體研究?jī)?nèi)容如下： 首先介紹了視頻監(jiān)控系統(tǒng)的傳輸模型,闡述了監(jiān)控系統(tǒng)的三大組成部分,即前端子系統(tǒng)、視頻服務(wù)器和網(wǎng)絡(luò)用戶終端；重點(diǎn)介紹傳輸過程中涉及的幾種抗誤碼技術(shù),如參數(shù)集、靈活的宏塊次序、數(shù)據(jù)分割以及冗余片。 然后對(duì)H.264標(biāo)準(zhǔn)中一些關(guān)鍵技術(shù)進(jìn)行介紹,如分層設(shè)計(jì)、幀內(nèi)預(yù)測(cè)、可變大小的運(yùn)動(dòng)補(bǔ)償、整數(shù)DCT變換、熵編碼等,為其在網(wǎng)絡(luò)視頻監(jiān)控系統(tǒng)中的應(yīng)用奠定了理論基礎(chǔ)；并對(duì)運(yùn)動(dòng)估計(jì)現(xiàn)有的搜索算法進(jìn)行分析,在此基礎(chǔ)上給出-種改進(jìn)的混合搜索算法,通過仿真實(shí)驗(yàn)證明其有效性。 最后在H.264標(biāo)準(zhǔn)和視頻監(jiān)控系統(tǒng)的理論基礎(chǔ)上,本文設(shè)計(jì)了一個(gè)基于H.264的網(wǎng)絡(luò)監(jiān)控?cái)z像機(jī)。系統(tǒng)在Hi3516SOC平臺(tái)上實(shí)現(xiàn)H.264編碼,并設(shè)計(jì)RTSP服務(wù)器用于在網(wǎng)絡(luò)上傳輸H.264碼流,使用VLC開源軟件測(cè)試RTSP碼流封包的正確性和評(píng)估H.264編碼的圖像效果。實(shí)驗(yàn)結(jié)果表明,該系統(tǒng)能夠通過網(wǎng)絡(luò)較為穩(wěn)定地傳輸視頻畫面,而且畫面清晰、數(shù)據(jù)傳輸快,滿足視頻監(jiān)控的實(shí)時(shí)性需求。此外,利用Hi3516處理器平臺(tái)的移動(dòng)偵測(cè)API接口,本文設(shè)置了“移動(dòng)偵測(cè)”功能,并加入“布防時(shí)問”的參數(shù)控制,更靈活地應(yīng)用于實(shí)際監(jiān)控系統(tǒng)。
[Abstract]:With the rapid development of video compression technology and network technology, video surveillance system, as an important part of security system, is widely used in every field of daily life. Compared with the traditional video surveillance system, the network monitoring system based on H.264 has the advantages of low cost, high stability and good real-time performance. The contents of this paper are as follows: Firstly, the transmission model of video surveillance system is introduced, and the three main components of the monitoring system, namely, front end subsystem, video server and network user terminal, are introduced, and several anti-error code techniques, such as parameter set, are introduced in detail. Flexible macroblock order, data segmentation and redundancy. Then some key technologies in H.264 are introduced, such as layered design, intra prediction, variable size motion compensation, integer DCT transform, entropy coding, etc., which lay a theoretical foundation for the application of H.264 in network video surveillance system. Based on the analysis of the existing search algorithms for motion estimation, an improved hybrid search algorithm is proposed, which is proved to be effective by simulation. Finally, on the basis of H.264 standard and video surveillance system theory, this paper designs a network surveillance camera based on H.264. The system implements H.264 coding on Hi3516SOC platform, and designs a RTSP server to transmit H.264 code stream over the network. VLC open source software is used to test the correctness of RTSP stream packet and evaluate the image effect of H.264 coding. The experimental results show that the system can transmit the video picture stably through the network, and the picture is clear and the data transmission is fast, which can meet the real-time requirement of video monitoring. In addition, using the API interface of the Hi3516 processor platform, this paper sets up the function of "motion detection", and adds the parameter control of "layout time question", which is more flexible to be applied to the actual monitoring system.
【學(xué)位授予單位】：安徽大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TN948.6

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 何峻峰;運(yùn)動(dòng)檢測(cè)技術(shù)在數(shù)字化監(jiān)控中的實(shí)現(xiàn)和應(yīng)用[J];中國(guó)安防產(chǎn)品信息;2004年04期

2 董潔,樓劍,陸亮,虞露;基于上下文的自適應(yīng)二進(jìn)制算術(shù)編碼——一種適用于視頻壓縮的新型熵編碼[J];電視技術(shù);2003年08期

3 馬姍姍,錢建生,程德強(qiáng);基于H.264的遠(yuǎn)程視頻監(jiān)控系統(tǒng)的設(shè)計(jì)與實(shí)現(xiàn)[J];電視技術(shù);2004年06期

4 呂優(yōu);張九根;;安防視頻監(jiān)控系統(tǒng)設(shè)計(jì)研究[J];低壓電器;2009年14期

5 智西湖,智艾娣;基于H.264編碼的運(yùn)動(dòng)估計(jì)快速搜索算法[J];計(jì)算機(jī)應(yīng)用;2004年04期

6 曾昭平,劉超俊,張文軍;圖像壓縮與遠(yuǎn)程傳輸系統(tǒng)的設(shè)計(jì)[J];計(jì)算機(jī)仿真;2000年06期

7 艾金慰,劉克;數(shù)字視頻監(jiān)控系統(tǒng)中實(shí)時(shí)運(yùn)動(dòng)檢測(cè)系統(tǒng)的研究[J];計(jì)算機(jī)應(yīng)用研究;2005年09期

8 樊亞琴;;淺談視頻監(jiān)控系統(tǒng)的應(yīng)用與發(fā)展[J];科技情報(bào)開發(fā)與經(jīng)濟(jì);2010年05期

9 王軍,吳志美;交換式以太網(wǎng)上的多播協(xié)議[J];軟件學(xué)報(bào);2003年03期

10 信師國(guó);劉慶磊;劉全賓;;網(wǎng)絡(luò)視頻監(jiān)控系統(tǒng)現(xiàn)狀和發(fā)展趨勢(shì)[J];信息技術(shù)與信息化;2010年01期

，

本文編號(hào)：1958184