Abstract
A new method for synthesizing a full-color computer-generated hologram (CGH) of real-existing objects has been proposed. In this method, the synthesizing process of CGHs and the adjustments of magnifications for each wavelength are considered based on parabolic sampling of three-dimensional Fourier spectra. Our method requires only one-dimensional azimuth scanning of objects, does not require any approximations in the synthesizing process, and can perform efficient magnification adjustments required for color reconstruction. Experimental results have been presented to verify the principle and validity of this method. Then, we propose a fast calculation method for diffraction to nonplanar surfaces using the fast-Fourier transform (FFT) algorithm. In this method, the diffracted wavefront on a cylindrical surface is expressed as a convolution between the point response function and the spatial distribution of objects wherein the convolution is calculated using. The principle of the fast calculation and the simulation results are presented.
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Yatagai, T., Sando, Y. (2006). Wide-Angle Computer-Generated Holograms for 3-D Display. In: Poon, TC. (eds) Digital Holography and Three-Dimensional Display. Springer, Boston, MA . https://doi.org/10.1007/0-387-31397-4_9
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DOI: https://doi.org/10.1007/0-387-31397-4_9
Publisher Name: Springer, Boston, MA
Print ISBN: 978-0-387-31340-5
Online ISBN: 978-0-387-31397-9
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