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微格教學(xué)系統(tǒng)中視頻采集與處理技術(shù)研究

發(fā)布時(shí)間:2019-04-24 17:24
【摘要】:微格教學(xué)廣泛應(yīng)用在心理學(xué)、教育學(xué)、學(xué)科教學(xué)法、師范教育等領(lǐng)域,它吸納了很多先進(jìn)的教學(xué)思想和理念,對(duì)提高教學(xué)質(zhì)量特別是師范生的教學(xué)技能起到了十分重要的作用。隨著現(xiàn)代化信息技術(shù)尤其是多媒體技術(shù)的不斷發(fā)展,為學(xué)校實(shí)現(xiàn)教學(xué)設(shè)備智能化、教育管理現(xiàn)代化以及教學(xué)手段多樣化提供了發(fā)展機(jī)遇。本微格教學(xué)系統(tǒng)融入了計(jì)算機(jī)網(wǎng)絡(luò)技術(shù)、嵌入式電路技術(shù)和音視頻技術(shù),為開(kāi)展有效的教學(xué)技能培訓(xùn)構(gòu)建了一個(gè)良好的平臺(tái),為教學(xué)過(guò)程反饋和教學(xué)評(píng)價(jià)提供了現(xiàn)代化的手段。 本課題的設(shè)計(jì)以DirectShow流媒體處理平臺(tái)和H.264/AVC視頻編碼的研究為基礎(chǔ),結(jié)合內(nèi)部集成有H.264硬件編碼器的多路視頻編碼芯片SC8919,設(shè)計(jì)了一款集多媒體課堂教學(xué)、多路視頻的錄制、存儲(chǔ)、傳輸、回放功能于一體的微格教學(xué)視頻處理系統(tǒng)。該系統(tǒng)能夠?qū)z像頭所采集的四路D1(720*576@25fps)格式的圖像數(shù)據(jù)實(shí)時(shí)壓縮成為標(biāo)準(zhǔn)的H.264碼流,并上傳至監(jiān)控室(控制室和觀摩室)的PC機(jī)進(jìn)行存儲(chǔ)和解碼播放。并依靠院校已有的以太網(wǎng)平臺(tái)進(jìn)行傳輸,無(wú)需另外鋪設(shè)專(zhuān)線。系統(tǒng)提供友好的操作界面,方便用戶(hù)操作和使用。通過(guò)實(shí)際的制作和調(diào)試,各項(xiàng)技術(shù)指標(biāo)達(dá)到設(shè)計(jì)要求。 本文在分析選題意義的基礎(chǔ)上,規(guī)劃出系統(tǒng)的總體設(shè)計(jì)方案,包括視頻采集模塊、PCI數(shù)據(jù)總線交互模塊、視頻服務(wù)器模塊和網(wǎng)絡(luò)傳輸模塊。之后對(duì)課題設(shè)計(jì)過(guò)程中涉及的H.264/AVC視頻編碼標(biāo)準(zhǔn)和DirectShow流媒體處理平臺(tái)進(jìn)行了描述。其次,介紹了以SC8919為核心的視頻采集模塊的硬件電路設(shè)計(jì),,同時(shí)討論了該模塊主要芯片的功能和應(yīng)用。然后,介紹了視頻服務(wù)器的設(shè)計(jì),這部分設(shè)計(jì)是建立在充分研究和掌握SC8919芯片的內(nèi)部資源使用基礎(chǔ)上,并從多線程設(shè)計(jì)、系統(tǒng)初始化設(shè)計(jì)、DirectShow濾波器設(shè)計(jì)和系統(tǒng)界面設(shè)計(jì)等幾個(gè)方面給出了詳細(xì)的設(shè)計(jì)方法,并描述了硬件和軟件調(diào)試的過(guò)程。最后,介紹了網(wǎng)絡(luò)傳輸模塊的設(shè)計(jì)過(guò)程。
[Abstract]:Micro-teaching is widely used in psychology, pedagogy, discipline teaching method, normal education and other fields. It absorbs many advanced teaching ideas and ideas, and plays a very important role in improving the teaching quality, especially the teaching skills of normal students. With the continuous development of modern information technology, especially multimedia technology, it provides a development opportunity for the school to realize the intelligentization of teaching equipment, the modernization of educational management and the diversification of teaching means. This micro-teaching system integrates computer network technology, embedded circuit technology and audio-video technology. It constructs a good platform for effective training of teaching skills, and provides a modern means for teaching process feedback and teaching evaluation. Based on the research of DirectShow streaming media processing platform and H.264/AVC video coding, this paper designs a multi-channel video coding chip SC8919, which integrates H.264 hardware encoder, and designs a multimedia classroom teaching. Multi-channel video recording, storage, transmission, playback functions in one microteaching video processing system. The system can compress the four-channel D1 (720*576@25fps) format image data collected by the camera into a standard H.264 stream in real time, and upload it to the PC of the monitor room (control room and observation room) for storage and decoding. And rely on the existing university Ethernet platform for transmission, no need to lay another dedicated line. The system provides a friendly interface for users to operate and use. Through the actual production and debugging, the technical indicators meet the design requirements. On the basis of analyzing the significance of the selected topic, this paper plans the overall design scheme of the system, including video capture module, PCI data bus interaction module, video server module and network transmission module. Then the H.264/AVC video coding standard and DirectShow streaming media processing platform involved in the design process are described. Secondly, the hardware circuit design of the video capture module based on SC8919 is introduced, and the function and application of the main chip of the module are discussed. Then, the design of video server is introduced. This part of the design is based on the full research and grasp of the use of internal resources of the SC8919 chip, and from the multi-thread design, system initialization design, The detailed design methods of DirectShow filter and system interface are given, and the debugging process of hardware and software is described. Finally, the design process of network transmission module is introduced.
【學(xué)位授予單位】:寧波大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2012
【分類(lèi)號(hào)】:G642.4;TP391.41

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 張宏超;;Windows平臺(tái)下PCI設(shè)備驅(qū)動(dòng)程序的開(kāi)發(fā)[J];信息化研究;2010年02期

2 溫賀平;戴青云;劉志鑫;;利用I~2C總線實(shí)現(xiàn)DSP對(duì)SAA7113H的配置[J];儀器儀表用戶(hù);2009年02期

3 鄢鋒;桂衛(wèi)華;胡志坤;何多昌;;基于Socket的整流裝置遠(yuǎn)程監(jiān)控系統(tǒng)[J];計(jì)算機(jī)工程;2008年05期

4 葉敏挺;李博;;B/S和C/S雙架構(gòu)通用表單編輯器的設(shè)計(jì)與實(shí)現(xiàn)[J];計(jì)算機(jī)應(yīng)用;2010年S2期

5 林立忠;張惠濤;段麗英;;新型嵌入式網(wǎng)絡(luò)視頻監(jiān)控系統(tǒng)的設(shè)計(jì)[J];制造業(yè)自動(dòng)化;2010年11期

6 楊建良;;基于網(wǎng)絡(luò)的數(shù)字化微格教學(xué)系統(tǒng)的設(shè)計(jì)[J];中國(guó)教育信息化;2010年11期

7 劉爽;史國(guó)友;張遠(yuǎn)強(qiáng);;基于TCP/IP協(xié)議和多線程的通信軟件的設(shè)計(jì)與實(shí)現(xiàn)[J];計(jì)算機(jī)工程與設(shè)計(jì);2010年07期

8 盛健,季曉勇;DirectShow過(guò)濾器組件開(kāi)發(fā)技術(shù)及其應(yīng)用實(shí)例[J];微型機(jī)與應(yīng)用;2004年01期

9 彭鋒;林和志;黃聯(lián)芬;;基于Directshow的H.264網(wǎng)絡(luò)視頻監(jiān)控客戶(hù)端實(shí)現(xiàn)[J];現(xiàn)代電子技術(shù);2011年08期

10 陳宗恒;李峰飛;;PCI9052接口芯片的配置及驅(qū)動(dòng)程序開(kāi)發(fā)[J];電子元器件應(yīng)用;2007年04期

相關(guān)碩士學(xué)位論文 前10條

1 黃自瑞;基于PCI總線技術(shù)的多媒體數(shù)據(jù)傳輸卡設(shè)計(jì)[D];寧波大學(xué);2011年

2 龐然;基于DirectX的音視頻播放器軟件設(shè)計(jì)[D];浙江大學(xué);2006年

3 許宏竹;基于DirectShow的流媒體的應(yīng)用和研究[D];北京郵電大學(xué);2007年

4 黃良飛;基于DirectShow技術(shù)的網(wǎng)絡(luò)視頻播放器設(shè)計(jì)[D];浙江大學(xué);2007年

5 黃振華;基于H.264的嵌入式實(shí)時(shí)視頻采集與傳輸系統(tǒng)的設(shè)計(jì)與實(shí)現(xiàn)[D];華東師范大學(xué);2008年

6 史彩娟;基于PCI總線接口視頻采集卡的設(shè)計(jì)與實(shí)現(xiàn)[D];天津大學(xué);2007年

7 何浩;基于H.264的網(wǎng)絡(luò)視頻監(jiān)控系統(tǒng)的設(shè)計(jì)與實(shí)現(xiàn)[D];湖南大學(xué);2009年

8 高飛燕;基于DirectShow的視頻監(jiān)控客戶(hù)端軟件設(shè)計(jì)[D];北京郵電大學(xué);2009年

9 白世軍;基于H.264/AVC視頻編碼運(yùn)動(dòng)估計(jì)算法的優(yōu)化[D];哈爾濱工業(yè)大學(xué);2008年

10 何相錦;基于DirectShow的腦機(jī)接口視覺(jué)刺激器的設(shè)計(jì)與實(shí)現(xiàn)[D];重慶大學(xué);2010年



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