Two schemes for rapid generation of digital video holograms using PC cluster

Hanhoon Park; Joongseok Song; Changseob Kim; Jong-Il Park

doi:10.1117/1.OE.56.12.123104

11 December 2017 Two schemes for rapid generation of digital video holograms using PC cluster

Hanhoon Park, Joongseok Song, Changseob Kim, Jong-Il Park

Author Affiliations +

Optical Engineering, Vol. 56, Issue 12, 123104 (December 2017). https://doi.org/10.1117/1.OE.56.12.123104

Abstract

Computer-generated holography (CGH), which is a process of generating digital holograms, is computationally expensive. Recently, several methods/systems of parallelizing the process using graphic processing units (GPUs) have been proposed. Indeed, use of multiple GPUs or a personal computer (PC) cluster (each PC with GPUs) enabled great improvements in the process speed. However, extant literature has less often explored systems involving rapid generation of multiple digital holograms and specialized systems for rapid generation of a digital video hologram. This study proposes a system that uses a PC cluster and is able to more efficiently generate a video hologram. The proposed system is designed to simultaneously generate multiple frames and accelerate the generation by parallelizing the CGH computations across a number of frames, as opposed to separately generating each individual frame while parallelizing the CGH computations within each frame. The proposed system also enables the subprocesses for generating each frame to execute in parallel through multithreading. With these two schemes, the proposed system significantly reduced the data communication time for generating a digital hologram when compared with that of the state-of-the-art system.

CC BY: © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

Citation Download Citation

Hanhoon Park, Joongseok Song, Changseob Kim, and Jong-Il Park "Two schemes for rapid generation of digital video holograms using PC cluster," Optical Engineering 56(12), 123104 (11 December 2017). https://doi.org/10.1117/1.OE.56.12.123104

Received: 18 August 2017; Accepted: 9 November 2017; Published: 11 December 2017

ACCESS THE FULL ARTICLE

JOURNAL ARTICLE
10 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY