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Proceedings Paper

Fast calculation by auto-optimized method in CGH video generation using GPU
Author(s): Hayato Sakai; Yuji Sakamoto
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Paper Abstract

Computer-generated hologram (CGH) can generate an ideal 3D video, but the downside is that the calculation time is huge. Recently, it is becoming more common to use a graphics processing unit (GPU) to enable fast calculation for CGH. Therefore, we have created a system that automatically changes various parameters in the CGH calculation by the GPU, searches for optimal parameters, and performs automatic tuning. In this work, we optimized four parameters-loop unrolling, memory structure, point light source sparsity, and allocation of calculation processing units-and found that the calculation time was 1.8 times faster as a result of the optimization.

Paper Details

Date Published: 21 February 2020
PDF: 9 pages
Proc. SPIE 11306, Practical Holography XXXIV: Displays, Materials, and Applications, 113060S (21 February 2020); doi: 10.1117/12.2545879
Show Author Affiliations
Hayato Sakai, Hokkaido Univ. (Japan)
Yuji Sakamoto, Hokkaido Univ. (Japan)

Published in SPIE Proceedings Vol. 11306:
Practical Holography XXXIV: Displays, Materials, and Applications
Hans I. Bjelkhagen, Editor(s)

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