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Proceedings Paper

Fast calculation of CGH using improved symmetric compressed LUT algorithm
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Paper Abstract

Computer-generated hologram (CGH) is a key technology in electro-holography systems. However, the huge computational complexity is a challenge for practical demands. In this paper, we propose an improved algorithm to accelerate CGH computation based on symmetric compressed LUT (SC-LUT) algorithm. In LUT calculation, the horizontal and vertical modulation factors is reduced to one-dimension arrays instead of dual one-dimension arrays. In hologram calculation, we introduce a one-time generation of color holograms method which is accelerated by matrix convolution operation. Numerical simulation results also show at least 13 times faster than existing algorithms without sacrificing the computation precision. The proposed algorithm accelerated by the graphic processing unit (GPU) is an effective method for fast calculation of CGH in color holographic display.

Paper Details

Date Published: 2 November 2018
PDF: 6 pages
Proc. SPIE 10818, Holography, Diffractive Optics, and Applications VIII, 1081803 (2 November 2018); doi: 10.1117/12.2503469
Show Author Affiliations
Tao Zhao, Beijing Institute of Technology (China)
Juan Liu, Beijing Institute of Technology (China)
Weiting Peng, Beijing Institute of Technology (China)
Yongtian Wang, Beijing Institute of Technology (China)

Published in SPIE Proceedings Vol. 10818:
Holography, Diffractive Optics, and Applications VIII
Yunlong Sheng; Chongxiu Yu; Changhe Zhou, Editor(s)

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