A model for integrating multimedia information around 3D graphics hierarchies

Abstract

We present a model for organizing multimedia information especially suitable for applications with three-dimensional content. The model relies on the hierarchical nature of 3D objects, which are utilized as centralizing structure to give coherence to the organization and access of all other medium types. Techniques have been developed to facilitate the manipulation of all medium types through a consistent user interace paradigm. The modeling of space and time constraints as applied to the animation of graphical objects and their synchronization with video has also been explored. Two industrial training applications have been developed to demonstrate the usability of the system. © 1991 Springer-Verlag.