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Proceedings Paper

Filling factor characteristics of masking phase-only hologram on the quality of reconstructed images
Author(s): Yuanbo Deng; Daping Chu
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Paper Abstract

The present study evaluates the filling factor characteristics of masking phase-only hologram on its corresponding reconstructed image. A square aperture with different filling factor is added on the phase-only hologram of the target image, and average cross-section intensity profile of the reconstructed image is obtained and deconvolved with that of the target image to calculate the point spread function (PSF) of the image. Meanwhile, Lena image is used as the target image and evaluated by metrics RMSE and SSIM to assess the quality of reconstructed image. The results show that the PSF of the image agrees with the PSF of the Fourier transform of the mask, and as the filling factor of the mask decreases, the width of PSF increases and the quality of reconstructed image drops. These characteristics could be used in practical situations where phase-only hologram is confined or need to be sliced or tiled.

Paper Details

Date Published: 7 March 2016
PDF: 9 pages
Proc. SPIE 9771, Practical Holography XXX: Materials and Applications, 97710M (7 March 2016); doi: 10.1117/12.2212813
Show Author Affiliations
Yuanbo Deng, Univ. of Cambridge (United Kingdom)
Daping Chu, Univ. of Cambridge (United Kingdom)

Published in SPIE Proceedings Vol. 9771:
Practical Holography XXX: Materials and Applications
Hans I. Bjelkhagen; V. Michael Bove Jr., Editor(s)

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