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题名	基于Ogre引擎的虚拟演播室系统的设计与实现; Design and Implementation of Virtual Studio System Based on Ogre Engine
作者	王振雄
答辩日期	2015 ; 2014
导师	夏侯建兵
关键词	Ogre 虚拟演播室 虚拟场景 抠像 Ogre Virtual Studio Virtual Scene Matting
英文摘要	随着计算机图形技术及虚拟现实技术的不断发展，电视节目的制作正在向数字化、网络化和虚拟化的方向发展，而虚拟演播室技术给电视节目制作带来了一场深刻的变革。虚拟演播室技术是在计算机图形处理技术和视频色键技术的基础上发展起来的新技术，是一种全新的电视节目制作工具，它突破了传统演播室实景制作和场景设计的时空限制，实现了摄像机实时拍摄的前景画面与渲染服务器渲染的背景画面地完美结合，为电视节目的制作提供了极其自由的创作空间，降低了节目制作费用，同时提高了电视节目制作的质量和效率，因此虚拟演播室技术近年来显示出了广泛的应用前景。 目前商用且成熟的虚拟演播室系统基本上都是基于工作站平台开发的，不仅价格昂贵，且操作繁琐不易，需专业人员才可灵活操作。同时，对于规模较小的中小型电视台来说，购买一套基于工作站级的虚拟演播室系统费用较高。因此，利用PC机开发一种成本低、实用性强、易操作的虚拟演播室系统来满足中小型电视台的电视节目制作需求，更具有广阔的应用前景和现实意义。因此，利用PC机实现虚拟演播室系统已成为目前研究热点。在此背景下，本文利用已有的虚拟演播室技术，从开发一套用于PC机的虚拟演播室系统的角度出发，将研究工作主要集中在基于Ogre引擎的虚拟演播室系统的研究、设计和实现上。 本文首先介绍了虚拟演播室技术诞生的背景，指出了传统演播室技术存在的缺陷，继而引出虚拟演播室技术在节目制作方面的优势，并介绍了虚拟演播室技术在国内外的发展状况。接着阐述了用于开发此PC虚拟演播室系统所使用的关键技术，包括Ogre、DirectShow以及Qt等核心技术，重点对其整体架构及核心机制进行了论述。在对核心技术进行简要介绍的基础上，对虚拟演播室系统进行了需求分析，接着进行了系统的核心模块设计、整体架构设计，并在此设计基础上实现了虚拟演播室系统各个模块的功能，最终实现了基于Ogre引擎的虚拟演播室系统，并分别介绍每个模块具体功能的实现界面及详细使用方法。; With the development of computer graphics technology and virtual reality technology, the production of TV programs are developed to the direction of digitization, networking and virtualization, and virtual studio technology brought a profound change to TV production. Virtual studio technology is a new technology base on computer graphics technology and video chroma key technology,it is a new television program production tool that breaks through the real production and scene design of space and time limit in traditional studio.It combined the foreground picture photoed by camera in real time and the background picture rendered by rendering server, provided an extremely creative freedom for the production of TV programs, reducing programming costs, while improving the quality and efficiency of TV production, so that the virtual studio technology has shown a wide range of applications in recent years. At present, mature commercial virtual studio system is developed on workstation platform, expensive, and complicated to operate, only professional can operate flexibly. It is very expensive for small and medium-sized television to buy a virtual studio system developed on workstation platform. A low cost, strong practicability, easy to operate virtual studio system developed on PC is meet the demand of small and medium-sized television,is more broad application prospects and practical significance. Therefore, the use of the PC virtual studio system has become a research hotspot. In this context, we use existing virtual studio technology, from the point of view to develop a virtual studio system for the PC, this paper focused on the research, design and implementation virtual studio system based on Ogre engine. This paper describes the background of the birth of virtual studio technology, pointed out the defects of the traditional studio technology, and leads to the virtual studio technology advantage in terms of programming, and introduced the situation of virtual studio technology at home and abroad. Then, the paper describes the key technologies for the develop PC virtual studio systems, including Ogre, DirectShow and Qt core technology, focusing on the overall architecture and discusses its core mechanism. Based on this analysis and research, virtual studio systems requirements is analysised, and then carried out the overall architecture of the system, the core module design, and the design the specific function of each module in a virtual studio system, finally a virtual studio system based on Ogre engine is develop, and introduce the specific functions of each module UI and detailed usage.; 学位：工程硕士; 院系专业：软件学院_软件工程; 学号：24320111152292
语种	zh_CN
出处	http://210.34.4.13:8080/lunwen/detail.asp?serial=43977
内容类型	学位论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/83280]
专题	软件学院－学位论文
推荐引用方式 GB/T 7714	王振雄. 基于Ogre引擎的虚拟演播室系统的设计与实现, Design and Implementation of Virtual Studio System Based on Ogre Engine[D]. 2015, 2014.

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