1 MPEG-4: Multimedia Coding Standard Supporting Mobile Multimedia System

Abstract: Mobile Multimedia System is a new computing paradigm of computing with the advances in wireless networking technology and development of semiconductor technology. There are many technological challenges to establishing the computing paradigm. Supporting the mobile multimedia computing is one of the important motivations of the MPEG-4 development. In this survey, firstly, we will briefly describe the mobile multimedia system concept, current state, architecture, and its challenge techniques. The discussion of MPEG-4 is focused the technical description. Its technique is described from three folds. 1. MPEG-4 DMIF and system, which describes the multimedia content delivery integration framework, object-based representation. 2. Introducing the MPEG-4 visual core technologies allowing efficient storage, transmission and manipulation of textures, images and video data for multimedia environments. 3. Describing coding of audio objects and synthesizing sounds based on structured descriptions. Finally, based on the discussion of the mobile multimedia system and MPEG-4, an application example on MPEG-4--An MPEG-4 Based Mobile Conferencing System, is given