Real-time color holographic video reconstruction using multiple-graphics processing unit cluster acceleration and three spatial light modulators

Shohei Ikawa; Naoki Takada; Hiromitsu Araki; Hiroaki Niwase; Hiromi Sannomiya; Hirotaka Nakayama; Minoru Oikawa; Yuichiro Mori; Takashi Kakue; Tomoyoshi Shimobaba; Tomoyoshi Ito

doi:10.3788/COL202018.010901

Journals >Chinese Optics Letters >Volume 18 >Issue 1 >Page 010901 > Article

Chinese Optics Letters
Vol. 18, Issue 1, 010901 (2020)

Real-time color holographic video reconstruction using multiple-graphics processing unit cluster acceleration and three spatial light modulators

Shohei Ikawa¹, Naoki Takada^2、*, Hiromitsu Araki³, Hiroaki Niwase³, Hiromi Sannomiya³, Hirotaka Nakayama⁴, Minoru Oikawa², Yuichiro Mori², Takashi Kakue⁵, Tomoyoshi Shimobaba⁵, and Tomoyoshi Ito⁵

Author Affiliations

¹Faculty of Science, Kochi University, Kochi 780-8520, Japan

²Research and Education Faculty, Kochi University, Kochi 780-8520, Japan

³Graduate School of Integrated Arts and Sciences, Kochi University, Kochi 780-8520, Japan

⁴Center for Computational Astrophysics, National Astronomical Observatory of Japan, Mitaka-shi 181-8588, Japan

⁵Graduate School of Engineering, Chiba University, Chiba 263-8522, Japan

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DOI: 10.3788/COL202018.010901 Cite this Article Set citation alerts

Shohei Ikawa, Naoki Takada, Hiromitsu Araki, Hiroaki Niwase, Hiromi Sannomiya, Hirotaka Nakayama, Minoru Oikawa, Yuichiro Mori, Takashi Kakue, Tomoyoshi Shimobaba, Tomoyoshi Ito. Real-time color holographic video reconstruction using multiple-graphics processing unit cluster acceleration and three spatial light modulators[J]. Chinese Optics Letters, 2020, 18(1): 010901 Copy Citation Text

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Abstract

We demonstrate real-time three-dimensional (3D) color video using a color electroholographic system with a cluster of multiple-graphics processing units (multi-GPU) and three spatial light modulators (SLMs) corresponding respectively to red, green, and blue (RGB)-colored reconstructing lights. The multi-GPU cluster has a computer-generated hologram (CGH) display node containing a GPU, for displaying calculated CGHs on SLMs, and four CGH calculation nodes using 12 GPUs. The GPUs in the CGH calculation node generate CGHs corresponding to RGB reconstructing lights in a 3D color video using pipeline processing. Real-time color electroholography was realized for a 3D color object comprising approximately 21,000 points per color.

Keywords

color electroholography graphics processing unit multiple-graphics processing unit cluster real-time electroholography