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Proceedings Paper

Real time calculation for holographic video display
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Paper Abstract

For practical holographic video system, it is important to generated holographic fringe as fast as possible. We have proposed an approximation method that can calculate the hologram faster. However, for the full parallax Fresnel hologram, the speed is not enough for real-time calculation. In this paper, we change the type of hologram from Fresnel to image. Since the object points of the image hologram are located very close to the hologram, calculations for single object point require only fractional part of the hologram. This also makes computation quite fast. The image hologram with 1.47 million pixels hologram, the speed of ten frames per second is obtained with the object consists of 7,000 points. Experimental results demonstrate that the interactive computation of complex object can be generated with conventional PC. We also investigated rainbow hologram for both full-color reconstruction and fast calculation. Reconstructed image prove that the color registration is good thorough the view zone. From the experimental results, compared with the image hologram, we could achieve about two times calculation speed when the number of the object point is more than 17,000. This results demonstrate that the interactive computation of full-color object can be generated with conventional PC.

Paper Details

Date Published: 27 February 2006
PDF: 10 pages
Proc. SPIE 6136, Practical Holography XX: Materials and Applications, 61360T (27 February 2006); doi: 10.1117/12.645408
Show Author Affiliations
Takeshi Yamaguchi, Nihon Univ. (Japan)
Hiroshi Yoshikawa, Nihon Univ. (Japan)

Published in SPIE Proceedings Vol. 6136:
Practical Holography XX: Materials and Applications
Hans I. Bjelkhagen; Roger A. Lessard, Editor(s)

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