Design And Implementation Of Virtual Studio System Based On Ogre Engine

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.