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Proceedings Paper

Recent developments in computer-generated holography: toward a practical electroholography system for interactive 3D visualization
Author(s): Christopher W. Slinger; Colin D. Cameron; Stuart D. Coomber; Richard J. Miller; Doug A. Payne; Allan P. Smith; Mark G. Smith; Maurice Stanley; Philip J. Watson
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Paper Abstract

This paper will give an overview of some recent developments in electroholography for applications in interactive 3D visualisation. Arguably the ultimate technology for this task, it is the only approach having the potential to deliver full depth cue, 3D images, having resolutions beyond that which can be perceived by the human eye. Despite significant advances by many researchers, the high pixel counts required by the computer generated hologram (CGH) patterns in these systems remain daunting - in practice, systems able to calculate and display reconfigurable CGH having pixel counts of more than one billion may be required for 300 mm width, 3D images. Advances described include novel Fourier mode variants of diffraction specific algorithms and parallel binarisation techniques for design of the CGH patterns; computer architectures for effective implementation of these algorithms for interactive CGH calculation; the latest developments in the Active Tiling spatial light modulator technology and novel replay optics arrangements including folded mirror geometries, viewer tracking alternatives and new horizontal parallax configurations. Throughout, the emphasis is optimisation towards implementation as an interactive electroholography system having practical utility. Some recent results from demonstrations of aspects of the technology will be shown. These include monochrome and colour, static and dynamic, horizontal parallax only (HPO) and full parallax, 3D images, generated from true CGH systems with up to 24 billion pixels.

Paper Details

Date Published: 29 June 2004
PDF: 15 pages
Proc. SPIE 5290, Practical Holography XVIII: Materials and Applications, (29 June 2004); doi: 10.1117/12.526690
Show Author Affiliations
Christopher W. Slinger, QinetiQ (United Kingdom)
Colin D. Cameron, QinetiQ (United Kingdom)
Stuart D. Coomber, QinetiQ (United Kingdom)
Richard J. Miller, QinetiQ (United Kingdom)
Doug A. Payne, QinetiQ (United Kingdom)
Allan P. Smith, QinetiQ (United Kingdom)
Mark G. Smith, QinetiQ (United Kingdom)
Maurice Stanley, QinetiQ (United Kingdom)
Philip J. Watson, QinetiQ (United Kingdom)

Published in SPIE Proceedings Vol. 5290:
Practical Holography XVIII: Materials and Applications
Tung H. Jeong; Hans I. Bjelkhagen, Editor(s)

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