A Scalable Holographic Display for Interactive Graphics Applications

We present a scalable holographic system design tar- geting multi-user interactive computer graphics applica- tions. The display device is based on back-projection tech- nology and uses a specially arranged array of microdis- plays and a holographic screen. The display is driven by DVI streams generated by multiple consumer level graph- ics boards and decoded in real-time by image processing units that feed the optical modules at high refresh rates. An OpenGL compliant library running on a client PC redefines the OpenGL behavior to multicast graphics commands to server PCs, where they are re-interpreted in order to im- plement holographic rendering. The feasibility of the ap- proach is demonstrated with a working hardware and soft- ware 7.4M pixel prototype driven at 10-15Hz by two DVI streams.