Virtual Studio:Structure and Key Technology
虚拟演播室:结构及关键技术

Virtual Studio uses computer generated scene as its background. It applies computer technology and video compositing technology to combine the actors and the virtual scene seamlessly, and gives audience a full new vision effect. It brings up a revolution to video making. The structure of Virtual Studio system includes three parts:camera tracking, background rendering and video compositing. Its key technology consists of camera tracking, camera switching and focusing, blue room design and background rendering, synchronization and compositing, etc. This paper addresses the structure, technology and some problems of Virtual Studio.