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Proceedings Paper

Hologram bandwidth reduction and size change of 3D images for visual display
Author(s): Kunihiro Sato; Satoshi Nakazaki; Masakazu Morimoto; Kensaku Fujii
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Paper Abstract

A method of hologram bandwidth reduction and a method of size change of a 3D image are described. Spatial frequency bands of a Fourier-transform hologram (FTH) are superimposed for reduction of the bandwidth and for production of a continuous periodic FTH. Resolution of the image is improved by the superimposing method. The second hologram for reconstruction of the magnified 3D image is produced by connecting a number of small holograms clipped from the original FTH. Image depth capable of magnification is extended using several FTHs. Experiments using the CGH shows that depth of the 3D image can be perceived by watching images reconstructed on many Fouriertransform planes with different distances from the hologram. It is also shown that numbers of rays of light illuminated from the second hologram reconstruct similar 3D images of various sizes of the same object. Distortion of the image due to the magnification can be avoided over the wide range of magnifying power.

Paper Details

Date Published: 29 June 2004
PDF: 9 pages
Proc. SPIE 5290, Practical Holography XVIII: Materials and Applications, (29 June 2004); doi: 10.1117/12.526419
Show Author Affiliations
Kunihiro Sato, Himeji Institute of Technology (Japan)
Satoshi Nakazaki, Himeji Institute of Technology (Japan)
Masakazu Morimoto, Himeji Institute of Technology (Japan)
Kensaku Fujii, Himeji Institute of Technology (Japan)

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

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