Multi-projector three-dimensional display for 3D Geographic Information System

A three-dimensional display system to show a given three-dimensional Geographic Information System (GIS) scene is presented, which is based on a digital light projector array, common PC clients, a projection diffusion screen augmented with a micro-lens array. A solution to calibrate the dynamic projectors' image and an efficient method to render and synchronize view-point images via a cluster of PC clients are proposed. The method to evaluate the distortion of GIS in the system is discussed. Dynamic 3D GIS scenes with stereo parallax and smooth parallax are demonstrated.