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7 March 2016 Image quality evaluation and control of computer-generated holograms
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Abstract
Image quality of the computer-generated holograms are usually evaluated subjectively. For example, the re- constructed image from the hologram is compared with other holograms, or evaluated by the double-stimulus impairment scale method to compare with the original image. This paper proposes an objective image quality evaluation of a computer-generated hologram by evaluating both diffraction efficiency and peak signal-to-noise ratio. Theory and numerical experimental results are shown on Fourier transform transmission hologram of both amplitude and phase modulation. Results without the optimized random phase show that the amplitude transmission hologram gives better peak signal-to noise ratio, but the phase transmission hologram provides about 10 times higher diffraction efficiency to the amplitude type. As an optimized phase hologram, Kinoform is evaluated. In addition, we investigate to control image quality by non-linear operation.
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Hiroshi Yoshikawa, Takeshi Yamaguchi, and Hiroki Uetake "Image quality evaluation and control of computer-generated holograms", Proc. SPIE 9771, Practical Holography XXX: Materials and Applications, 97710N (7 March 2016); https://doi.org/10.1117/12.2209264
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