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Real-time holographic 3D imaging based on multiplexing techniques and optoelectronic holograms

: Schulze, E.

Ebbeni, J. ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.; Association Nationale de la Recherche Technique -ANRT-:
Progress in holography
Bellingham/Wash.: SPIE, 1987 (Proceedings of SPIE 812)
ISBN: 0-89252-847-8
International Symposium on Optical and Optoelectronic Applied Science and Engineering <4, 1987, The Hague>
Conference Paper
Fraunhofer HHI ()
holography; multiplexing; optical images; optical modulation; multiplexing techniques; optoelectronic holograms; large diameter telescope-type imaging systems; multiple lens cameras; photo emulsions; interference pattern; spatial light modulators; light valves; real-time holographic imaging system

Multiplexing techniques for recording of 3D objects and for synthesizing of holograms are discussed. Proposals are given for recording of 3D scenes by large diameter telescope-type imaging systems applying multiple lens cameras. Suggestions are made for an optoelectronic synthesis of still and animated holograms based on photo emulsions and optoelectronic holograms respectively. Two synthesizing methods are described: an optical synthesis utilizing 2D perspective views and a synthesis based on calculating and writing of the interference pattern onto the hologram. The 2D pictures and interference pattern are procreated by optoelectronic light valves. The hologram plate consists of photoemulsions for still holograms. For animated holograms very-high-resolution optoelectronic spatial light modulators are considered. Possible types of light modulators and light valves which can be used for the real-time holographic imaging system are discussed. It is shown that animated holographic 3D images can be obtained, if the optoelectronic light modulators are available.