DeskAlign: Automaticlly Aligning a Tiled Windows Desktop

Tiled projector arrays are effective at meeting the needs for scalable, cost effective, higher resolution displays. Increases in PC performance have allowed small tiled displays to be driven from a single PC with multiple graphics cards. In this paper we present a system for automatically aligning the Windows Desktop of a tiled display. This system consists of three primary procedures: detecting projector misalignment, calculating corrective transformations, and real-time warping of the desktop. This allows users to run any Windows 2D, 3D or video application without modifications or special software support. Our experiments indicate that the system is able to achieve real-time warping with minimum system performance degradation.