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Proceedings Paper

Information reduction in holograms by superimposing spatial frequency bands
Author(s): Satoshi Nakazaki; Kunihiro Sato; Masakazu Morimoto; Kensaku Fujii
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Paper Abstract

A new method of information reduction in hologram is described. Loss of resolution due to the information reduction is improved by superimposing spatial frequency bands of a Fourier transform hologram. Superposition of a number of identical Fourier transform holograms, which deviate each other with a small distance, forms a continuous periodic Fourier transform hologram. The second hologram for the reconstruction of an image is reproduced by repetition of a small area of the continuous periodic Fourier transform hologram. Experiments have been carried out to examine the reconstruction of 3-D images by using computer-generated holograms (CGHs). Results of the experiments show that a high-resolution image is reconstructed from the second hologram produced by superimposing spatial frequency bands. The information reduction effects on the imaging, so that the reconstructed image is spatially sampled with a constant pitch.

Paper Details

Date Published: 4 June 2003
PDF: 8 pages
Proc. SPIE 5005, Practical Holography XVII and Holographic Materials IX, (4 June 2003); doi: 10.1117/12.473839
Show Author Affiliations
Satoshi Nakazaki, Himeji Institute of Technology (Japan)
Kunihiro Sato, Himeji Institute of Technology (Japan)
Masakazu Morimoto, Himeji Institute of Technology (Japan)
Kensaku Fujii, Himeji Institute of Technology (Japan)


Published in SPIE Proceedings Vol. 5005:
Practical Holography XVII and Holographic Materials IX
Tung H. Jeong; Sylvia H. Stevenson, Editor(s)

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