25 April 2008 Improvement of recording density by using a Wiener filter in multiplexed hologram recording
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Abstract
To improve the recording density of Polytopic multiplexed recording, we studied the spatial filtering effect from the view points of the filter size and signal-to-noise-ratio (SNR) of the reproduced signal. The relationship between SNR and spatial filter size is evaluated by using three dimensional model and Fresnel diffraction analysis. By applying the Wiener filter to the reproduced signal, we can improve SNR for small spatial filter size.
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Shuhei Yoshida, Shuhei Yoshida, Motoaki Saitoh, Motoaki Saitoh, Yasuhiro Ohuchi, Yasuhiro Ohuchi, Miyuki Tanaka, Miyuki Tanaka, Manabu Yamamoto, Manabu Yamamoto, "Improvement of recording density by using a Wiener filter in multiplexed hologram recording", Proc. SPIE 7000, Optical and Digital Image Processing, 70001O (25 April 2008); doi: 10.1117/12.780477; https://doi.org/10.1117/12.780477
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