• Chinese Optics Letters
  • Vol. 19, Issue 11, 110501 (2021)
Ren Noguchi1, Kohei Suzuki1, Yoshiki Moriguchi1, Minoru Oikawa2, Yuichiro Mori2, Takashi Kakue3, Tomoyoshi Shimobaba3, Tomoyoshi Ito3, and Naoki Takada2、*
Author Affiliations
  • 1Graduate School of Integrated Arts and Sciences, Kochi University, Kochi 780-8520, Japan
  • 2Research and Education Faculty, Kochi University, Kochi 780-8520, Japan
  • 3Graduate School of Engineering, Chiba University, Chiba 263-8522, Japan
  • show less


    In amplitude-modulation-type electroholography, the binary-weighted computer-generated hologram (BW-CGH) facilitates the gradation-expressible reconstruction of three-dimensional (3D) objects. To realize real-time gradation-expressible electroholography, we propose an efficient and high-speed method for calculating bit planes consisting of BW-CGHs. The proposed method is implemented on a multiple graphics processing unit (GPU) cluster system comprising 13 GPUs. The proposed BW-CGH method realizes eight-gradation-expressible electroholography at approximately the same calculation speed as that of conventional electroholography based on binary computer-generated holograms. Consequently, we were able to successfully reconstruct a real-time electroholographic 3D video comprising approximately 180,000 points expressed in eight gradations at 30 frames per second.
    Copy Citation Text
    Ren Noguchi, Kohei Suzuki, Yoshiki Moriguchi, Minoru Oikawa, Yuichiro Mori, Takashi Kakue, Tomoyoshi Shimobaba, Tomoyoshi Ito, Naoki Takada. Real-time gradation-expressible amplitude-modulation-type electroholography based on binary-weighted computer-generated hologram[J]. Chinese Optics Letters, 2021, 19(11): 110501
    Download Citation
    Category: Diffraction, Gratings, and Holography
    Received: May. 7, 2021
    Accepted: Sep. 14, 2021
    Posted: Sep. 15, 2021
    Published Online: Oct. 14, 2021
    The Author Email: Naoki Takada (ntakada@is.kochi-u.ac.jp)