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-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.
HoloDigilog Human Media Research Center, 3D Display Research Center, Kwangwoon University, 447-1Wolge-Dong, Nowon-Gu, Seoul 139-701, South Korea.
Seung-Cheol
SC
Kim
Jae-Man
JM
Kim
Eun-Soo
ES
Kim
D000465:Algorithms; D006696:Holography / Q000295:instrumentation*; D016247:Information Storage and Retrieval / Q000379:methods*; D012031:Refractometry / Q000379:methods*