發(fā)布時(shí)間：2018-10-07 18:11

【摘要】：近幾年來，在全球范圍內(nèi)形成了日益增長的數(shù)字電視市場；我國以模擬技術(shù)為基礎(chǔ)的傳統(tǒng)廣播影視體制，正向以數(shù)字、網(wǎng)絡(luò)技術(shù)為基礎(chǔ)的新體制過渡，蘊(yùn)含著巨大市場空間的數(shù)字電視產(chǎn)業(yè)正在形成；國際上數(shù)字電視機(jī)頂盒產(chǎn)品不斷推陳出新，并擁有越來越廣泛的用戶。國內(nèi)的眾多數(shù)字電視終端產(chǎn)品開發(fā)單位都面臨新的機(jī)遇與挑戰(zhàn)。 在這樣的市場背景下，作者結(jié)合自己在機(jī)頂盒產(chǎn)品開發(fā)項(xiàng)目中的任務(wù)，完成了以下三方面的研究工作： 基于MPEG-7的PDR高級(jí)功能的研究與設(shè)計(jì)； 數(shù)字電視終端通用軟件框架設(shè)計(jì)； 數(shù)字電視相關(guān)產(chǎn)品（信號(hào)源與機(jī)頂盒）的開發(fā)。 本論文的主要?jiǎng)?chuàng)新點(diǎn)為： 提出了基于MPEG-7的廣告節(jié)目描述方案，實(shí)現(xiàn)了廣告節(jié)目的個(gè)人化收視。PVR可以實(shí)現(xiàn)跳過節(jié)目中廣告部分的功能，但這一功能會(huì)影響節(jié)目提供商的廣告收入，因此造成了節(jié)目提供商與PVR用戶的矛盾。本項(xiàng)研究能夠使廣告節(jié)目的播出和收視更有針對(duì)性，從而可以同時(shí)滿足節(jié)目提供商與電視觀眾兩方面的要求。 提出了統(tǒng)一節(jié)目資源管理方案。該方案比現(xiàn)有的PVR產(chǎn)品中采用的方案更符合觀眾收視習(xí)慣。在該方案的基礎(chǔ)上，實(shí)現(xiàn)了預(yù)約視頻點(diǎn)播和預(yù)約節(jié)目錄制，，比現(xiàn)有方案的實(shí)現(xiàn)效率更高。 向數(shù)字電視中間件標(biāo)準(zhǔn)的實(shí)現(xiàn)方案中增加了MPEG-7描述信息解析模塊，可支持未來各種利用描述信息實(shí)現(xiàn)的高級(jí)應(yīng)用。
[Abstract]:In recent years, a growing digital television market has been formed in the world, and the traditional radio, television and film system based on analog technology is in the process of transition to a new system based on digital and network technology. The digital TV industry, which contains a huge market space, is coming into being. In the world, the digital TV set-top box products are constantly innovating and have more and more users. Many domestic digital TV terminal product development units are facing new opportunities and challenges. In such a market background, the author combines his task in the STB product development project, The following three aspects of research work have been completed: the research and design of the advanced functions of PDR based on MPEG-7; General software frame design of digital TV terminal and development of digital TV related products (signal source and set top box). The main innovations of this paper are as follows: a description scheme of advertising program based on MPEG-7 is proposed, which can realize the function of skipping the advertising part of the program by realizing the personalized viewing of the advertising program. But this function will affect the advertising revenue of the program provider, thus causing the contradiction between the program provider and the PVR user. This study can make the broadcasting and viewing of advertising programs more targeted and meet the requirements of both program providers and TV viewers. A unified program resource management scheme is proposed. The scheme is more in line with audience viewing habits than the one used in existing PVR products. On the basis of this scheme, reservation video on demand and reservation program recording are realized, which is more efficient than the existing scheme. The MPEG-7 description information analysis module is added to the implementation scheme of digital television middleware standard, which can support various advanced applications using description information in the future.
【學(xué)位授予單位】：天津大學(xué)
【學(xué)位級(jí)別】：博士
【學(xué)位授予年份】：2003
【分類號(hào)】：TP319

【引證文獻(xiàn)】

相關(guān)博士學(xué)位論文 前1條

1 張濤;基于通用DSP實(shí)現(xiàn)HDTV機(jī)頂盒的研究與設(shè)計(jì)[D];天津大學(xué);2004年

本文編號(hào)：2255178