Calculation of reflectance distribution using angular spectrum convolution in mesh-based computer generated hologram

We propose a method to obtain a computer-generated hologram that renders reflectance distributions of individual mesh surfaces of three-dimensional objects. Unlike previous methods which find phase distribution inside each mesh, the proposed method performs convolution of angular spectrum of the mes...

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Bibliographic Details
Published in:Optics express 2016-08, Vol.24 (17), p.19801-19813
Main Authors: Yeom, Han-Ju, Park, Jae-Hyeung
Format: Article
Language:English
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Summary:We propose a method to obtain a computer-generated hologram that renders reflectance distributions of individual mesh surfaces of three-dimensional objects. Unlike previous methods which find phase distribution inside each mesh, the proposed method performs convolution of angular spectrum of the mesh to obtain desired reflectance distribution. Manipulation in the angular spectrum domain enables its application to fully-analytic mesh based computer generated hologram, removing the necessity for resampling of the spatial frequency grid. It is also computationally inexpensive as the convolution can be performed efficiently using Fourier transform. In this paper, we present principle, error analysis, simulation, and experimental verification results of the proposed method.
ISSN:1094-4087
1094-4087
DOI:10.1364/oe.24.019801