A MPEG-4 AFX compliant platform for 3D contents distribution in peer-to-peer

Although compression of 3D content has been a widely studied topic, adaptive streaming of large virtual scenes is progressively becoming the standard way to share collaborative environments, due to the growing complexity of the shared data. The classical ´download and play´ paradigm associated to standalone compression is leaving place to interactive refinements of regions-of-interest, provided given polygon budget and network capability. With the increasing number of applications and potential clients sharing reusable data, the traditional client / server architecture is likely to be over passed by less server-centered protocols, in order to distribute the complex tasks of identifying the selected data to be streamed. In this paper, we present the design and performances of a platform exploiting peer-to-peer transmission and show how the whole setting can be implemented using the MPEG-4 AFX standards.