Motion vector prediction in interactive 3D rendered video stream

In this research we describe a scheme for distributed 3D interactive rendering system, which allows high performance rendering at a remote location and the interactive visualization of the resulting rendered images at a general purpose workstation terminal connected through highspeed network. The key to this approach is a video compression scheme of this system which has been designed for the transmission of interactive 3D rendered video stream (i3D-RVS). Most video compression techniques heavily rely on the prediction of block motion. This paper particularly presents a fast numerical technique for motion vector prediction for such block coding compression of rendered animation video. This scheme takes advantage of the model movement information for block motion prediction. Unlike regular video, such information can be extracted in 3D visualization both for the case of animated models and for the interactive model navigation. We demonstrate the application of this new technique in the context of a distributed radiation treatment planning system.