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  • Received: Aug. 18, 2019

    Accepted: Sep. 20, 2019

    Posted: Dec. 10, 2019

    Published Online: Dec. 6, 2019

    The Author Email: Naoki Takada (ntakada@is.kochi-u.ac.jp)

    DOI: 10.3788/COL202018.010901

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    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

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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 Takada2,*, 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

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.

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