A real-time seamless tiled display system for 3D graphics

We outline our seamless tiled display system forinteractive 3D graphics applications that is low-cost, easy
to calibrate, scalable, and portable. Our system achieves
geometric alignment in software by pre-warping the 3D
space in contrast with the current systems that usually
achieve this by 2D image pre-warping. Our system
accomplishes this through real-time image capture from a
digital camcorder, image segmentation, and derivation of
the 3D warping matrices for each 3D graphics pipeline
that feeds a projector. Our prototype system demonstrates
our results on a 2 × 2 tiled array of projectors.