With the decreasing price of multimedia capturing and processing devices

as well as the capability to capture more complex

and sophisticated objectives

multimedia systems are facine the challenge of large data analysis and management. How to handle real time capturing

compressing

transferring

decompressing as well as information representation and management in a multimedia system has become an important research topic. We propose a real time distributed multimedia system framework for dynamic context environment based on a survey of the requirements of multimedia systems under dynamic context environment. It can be divided into two parts

the software infrastructure and the information system

fusing all needed functions in a real time distributed multimedia system into a unique framework. The former is used to encapsulate the function of capturing

compressing

and decompressing and so on

isolating logical functions from physical devices. The latter is used for information representation

isolating information from special capturing or processing devices

and it also provides the capacity of information management

which means users can search for specified information later. The experiments of the meeting system based on this frame show the openness

configurability and extensibility of our framework.