A High Resolution Video Display System by Seamlessly Tiling Multiple Projectors

With the rapid advances of digital photography technology, high resolution video can be recorded using video camera for home entertainment and digital cinema. High end projector used for high resolution video display is bulky and expensive, only suitable for fixed installation, and prevents itself from being widely adopted. In this paper, we present one high resolution video display system using multiple projectors to replace the high end projector playback system. Our system is driven by single PC with PCI-E16 x interface and supports at least triple projectors, which is suitable for building surround video display system. It fully exploits the high bandwidth between CPU and graphics card, and efficiently plays back high resolution video of any format supported by commercial video player. We design geometric alignment and photometric correction methods to display the video content seamlessly on the planar display screen. Experimental results show that our system displays high resolution video at its full frame rate.