Research And Implementation Of Virtual Studio Based On PC And Java Technology

With the development of the living standard, the expectations of consumers on the quality of the TV programs become higher and higher. It's a new challenge for making the TV programs to improve the watching rates. Virtual studio technology is come up with under this environment, which including computer graphics technology, multimedia technology, sensor technology, displaying technology and simulation technology. Virtual studio can make more wonderful programs by composing the video format files and the virtual scenes created by computer.At the present time, the products of virtual studio have been brought into the market, but all these products are based on the graphic workstation, which is too expensive almost around from 1 to 3 million RMB, and can't be used widely in China. To break the limitation, this thesis is to develop a virtual studio system based on Java and PC under the project cooperated with Liaoning TV station digital channel, which can make it possible and easier to apply virtual studio technology widely and to improve the level of making programs.The theory and technology of virtual studio based on Java, JMF and Java3D are introduced in this thesis. A new solution of developing virtual studio based on PC and Java is put forward. The problems of inputting the video format files (.MPG) based on JMF API, processing and controlling the elements on each track of the video and audio format file based on consumer-producer algorithm, extracting the useful pixels and wiping off the useless pixels on each image, composing the processed image with the virtual scenes created by computer are settled in this thesis. The dynamic caption and still caption based on multithreaded and keyboard interaction are also realized in this system. Modeling the three-dimensional irregular solids based on small triangle planes approaching, which have very good attributes and geometry characters are realized in this thesis, and the related rendering technology are solved. The animation and interaction technology such as Billboard animation and keyboard navigations based Java3D arcrealized in this program, which make the system very lively. All these technologies are used in the virtual studio system successfully.The main innovations in this thesis can be summarized as: a new way of resolution and whole design of virtual studio based on PC, Java, JMF and Java3D is come up with, and the resolution is feasible. Solved the video format file inputting, processing and dynamic texture processing. The irregular solids based on linear inserting and small triangle planes approaching which has terrific attributes and characters based on Java3D are created and the related three-dimensional processing technologis are applied on the solids. The satisfied results can be gained from the software.