Optimal Placement of Multiple Projectors for Projection-Based Mixed Reality by Considering Spatial Resolution

Abstract

This paper presents a method to compute the optimal placement of multiple projectors in projection-based mixed reality (MR). We aim to find the optimal placement that maximizes spatial resolution of projected images while minimizing shadow areas on a projection surface. To achieve this, we propose to evaluate the projected pixel density and find a projector placement in which the density is the closest to a target density value. The pixel density is computed by the geometric relationship among the projectors and the surface. Once the density is calculated, the proposed method finds the optimal placement based on Generic Algorithm. We show results of computed optimal projector placement. At last, projection results are shown in which projectors are placed at the optimal position.