Acceleration of the calculation speed of computer-generated holograms using the sparsity of the holographic fringe pattern for a 3D object

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In computer-generated hologram (CGH) calculations, a diffraction pattern needs to be calculated from all points of a 3-D object, which requires a heavy computational cost. In this paper, we propose a novel fast computer-generated hologram calculation method using sparse fast Fourier transform. The proposed method consists of two steps. First, the sparse dominant signals of CGHs are measured by calculating a wavefront on a virtual plane between the object and the CGH plane. Second, the wavefront on CGH plane is calculated by using the measured sparsity with sparse Fresnel diffraction. Experimental results proved that the proposed method is much faster than existing works while it preserving the visual quality. (C) 2016 Optical Society of America
Publisher
OPTICAL SOC AMER
Issue Date
2016-10
Language
English
Article Type
Article
Keywords

FRONT RECORDING PLANE; LOOK-UP TABLE; COMPRESSIVE FRESNEL HOLOGRAPHY; FAST COMPUTATION; TILTED PLANES; DIFFRACTION

Citation

OPTICS EXPRESS, v.24, no.22, pp.25317 - 25328

ISSN
1094-4087
DOI
10.1364/OE.24.025317
URI
http://hdl.handle.net/10203/214268
Appears in Collection
EE-Journal Papers(저널논문)
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