Presenting visual information using binary‐phase holography has a number of advantages over conventional video projection techniques. However, acceptable image quality for video applications has yet to be realised. In addition, the computational complexity of hologram generation has precluded real‐time operation. The authors present a new approach to hologram generation and display which allows high‐quality images to be projected holographically, in real time.

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A compact, efficient projection system using an LCOS display as a programmable diffractive element is presented. The device accepts DVI data representing 1280 × 1024 pixels at 24 bits per pixel. The holograms required for display on the LCOS device are calculated in real time using specially developed algorithms.