Real-time generation of high-definition resolution digital holograms by using multiple graphic processing units

Joongseok Song; Jungsik Park; Hanhoon Park; Jong-Il Park

doi:10.1117/1.OE.52.1.015803

17 January 2013 Real-time generation of high-definition resolution digital holograms by using multiple graphic processing units

Joongseok Song, Jungsik Park, Hanhoon Park, Jong-Il Park

Author Affiliations +

Funded by: KEIT, IT R&D program of KEIT

Optical Engineering, Vol. 52, Issue 1, 015803 (January 2013). https://doi.org/10.1117/1.OE.52.1.015803

Abstract

We describe and evaluate a practical approach for implementing computer-generated-holography (CGH) using multiple graphic processing units (GPUs). The proposed method can generate high-definition (HD) resolution (1920×1080) digital holograms in real-time. In order to demonstrate the plausibility of our method, some experimental results will be given. First, we discuss the advantage of GPUs for CGH against central processing units (CPUs) by comparing the performance of both. Our results show that use of GPUs can shorten CGH computation time by 2791 times. Then, we discuss the potential of multiple GPUs for generating HD resolution digital holograms in real-time by measuring and analyzing the CGH computational time in accordance with the number of GPUs. Our result shows that the CGH computational time decreases nonlinearly, with a logarithmic-like curve, as the number of GPU increases. Therefore, we can determine the number of GPUs to maximize the efficiency. Consequently, our implementation can generate HD resolution digital holograms at a rate of more than 66 hps (holograms-per-second) using two NVIDIA GTX 590 cards.

Citation Download Citation

Joongseok Song, Jungsik Park, Hanhoon Park, and Jong-Il Park "Real-time generation of high-definition resolution digital holograms by using multiple graphic processing units," Optical Engineering 52(1), 015803 (17 January 2013). https://doi.org/10.1117/1.OE.52.1.015803

Published: 17 January 2013

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