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Proceedings Paper

Fast hologram 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 Fresnel hologram fast. With the proposed method, a hologram with more than one million pixels can be calculated less than one second with a personal computer. To compute the hologram, an object is assumed as a collection of self-illuminated points and the fringes from each object point are superposed. To determine the fringe, a distance between object point and sampling point on the hologram is used to obtain phase of the light. Since sampled hologram usually has small pixel intervals, the difference of the distance values between adjacent pixels is also small and its second order difference becomes a constant. Therefore, the distance value at certain pixel can be obtained from the neighbor pixel with simple additions. The experimental results show that the proposed method is quite effective for the holographic video display with full parallax.

Paper Details

Date Published: 20 January 2006
PDF: 6 pages
Proc. SPIE 6027, ICO20: Optical Information Processing, 602725 (20 January 2006); doi: 10.1117/12.668197
Show Author Affiliations
Hiroshi Yoshikawa, Nihon Univ. (Japan)
Takeshi Yamaguchi, Nihon Univ. (Japan)

Published in SPIE Proceedings Vol. 6027:
ICO20: Optical Information Processing
Yunlong Sheng; Songlin Zhuang; Yimo Zhang, Editor(s)

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