The development of digital technology for the field of television programming has brought enormous change. Traditional analog television program production equipment at the changes experienced after several generations, has reached its peak, which tends to slow the pace of development. Sophisticated of modern computer technology and digital television, high-speed development of production technology, the relatively lower cost of hardware and software to bring the country's various sectors of the digital multimedia production process. Multi-media teaching video production, this situation needs to follow the same development. Under such circumstances, the virtual studio technology came into being.
Virtual studio system as the current field of video production, a research and development of hot spots, the main study are: shooting at blue box in the actor's performances, then through the color key to the production of computer-synthesized virtual scene. This article focuses on the study of virtual design studio, which has a number of traditional technologies can not achieve the features and benefits, can be a more effective use of resources, substantial savings in the cost of the system and installed King, set down by the time and manpower consuming。This technology also enables producers, artists from the time, space and props production constraints, and give full play to their imagination to create freely. Even though a few short years before the birth, but the trend of its development is very rapid, the field of television is increasingly becoming a focus of attention.
Keywords：Virtual Studio Computer Technology Color key video
