Effective memory reduction of the novel look-up table with one-dimensional sub-principle fringe patterns in computer-generated holograms

We propose a novel approach to massively reduce the memory of the novel look-up table (N-LUT) for computer-generated holograms by employing one-dimensional (1-D) sub-principle fringe patterns (sub-PFPs). Two-dimensional (2-D) PFPs used in the conventional N-LUT method are decomposed into a pair of 1...

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Bibliographic Details
Published in:Optics express 2012-05, Vol.20 (11), p.12021-12034
Main Authors: Kim, Seung-Cheol, Kim, Jae-Man, Kim, Eun-Soo
Format: Article
Language:English
Subjects:
Algorithms
Holography - instrumentation
Information Storage and Retrieval - methods
Refractometry - methods
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Summary:We propose a novel approach to massively reduce the memory of the novel look-up table (N-LUT) for computer-generated holograms by employing one-dimensional (1-D) sub-principle fringe patterns (sub-PFPs). Two-dimensional (2-D) PFPs used in the conventional N-LUT method are decomposed into a pair of 1-D sub-PFPs through a trigonometric relation. Then, these 1-D sub-PFPs are pre-calculated and stored in the proposed method, which results in a remarkable reduction of the memory of the N-LUT. Experimental results reveal that the memory capacity of the LUT, N-LUT and proposed methods have been calculated to be 149.01 TB, 2.29 GB and 1.51 MB, respectively for the 3-D object having image points of 500 × 500 × 256, which means the memory of the proposed method could be reduced by 103 × 10(6) fold and 1.55 × 10(3) fold compared to those of the conventional LUT and N-LUT methods, respectively.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.20.012021