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Proceedings Paper

Acceleration of calculation method for CGH with spherical basic object light by using graphic processing units
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Paper Abstract

A computer generated hologram(CGH) is hologram made by computer simulation. As fast calculation method for CGHs, basic object light method has been proposed. Lightwaves of arbitrary object shapes are calculated by transforming calculation of object light for basic object. And calculation method with spherical basic object light has been proposed to reduce memory capacity. We proposed transformations which are slide, rotation, distance, tilt, scaling and skew with spherical basic object light. This paper shows implementation of these transforming calculation on GPU to accelerate. Memory capacity for basic object light is larger than video memory. We divide data of basic object light and improve the algorithm to enable GPU to calculate at high speed. In the processing speed measurement, processing speed on GPU with basic object light is about 700 times faster than CPU.

Paper Details

Date Published: 10 February 2012
PDF: 8 pages
Proc. SPIE 8281, Practical Holography XXVI: Materials and Applications, 82810U (10 February 2012); doi: 10.1117/12.906629
Show Author Affiliations
Kohei Hosoyachi, Hokkaido Univ. (Japan)
Yuji Sakamoto, Hokkaido Univ. (Japan)


Published in SPIE Proceedings Vol. 8281:
Practical Holography XXVI: Materials and Applications
Hans I. Bjelkhagen; V. Michael Bove, Editor(s)

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