4 April 2012 Comparative evaluation of the image-reconstruction algorithms of single-shot phase-shifting digital holography
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Abstract
We comparatively evaluated two types of image-reconstruction algorithms in two types of single-shot phase-shifting digital holography techniques to investigate which algorithm is more suitable for high-quality and instantaneous three-dimensional imaging. Two types of image-reconstruction algorithms were proposed for each single-shot phase-shifting interferometry so far. One generates multiple phase-shifted holograms from the recorded single hologram by utilizing interpolation and derives the complex amplitude of the object wave by applying the calculation of phase-shifting interferometry to the multiple phase-shifted holograms. The other does not use interpolation but applies the calculation of phase-shifting interferometry to the neighboring pixels in the recorded hologram to derive the complex amplitude. We experimentally evaluated the qualities of the image reconstructed by the algorithms in each single-shot phase-shifting technique. It was clarified that the former algorithm is more effective for high-quality imaging free from the unwanted images in single-shot technique using an array of optical elements. In single-shot technique using spatial carrier, although the latter algorithm is able to reconstruct a brighter image for wide area than the former, spatial-filtering technique is needed for removing the conjugate image.
© 2012 SPIE and IS&T
Tatsuki Tahara, Tatsuki Tahara, Yuki Shimozato, Yuki Shimozato, Takashi Kakue, Takashi Kakue, Motofumi Fujii, Motofumi Fujii, Xia Peng, Xia Peng, Yasuhiro Awatsuji, Yasuhiro Awatsuji, Shogo Ura, Shogo Ura, Kenzo Nishio, Kenzo Nishio, Toshihiro Kubota, Toshihiro Kubota, Osamu Matoba, Osamu Matoba, } "Comparative evaluation of the image-reconstruction algorithms of single-shot phase-shifting digital holography," Journal of Electronic Imaging 21(1), 013021 (4 April 2012). https://doi.org/10.1117/1.JEI.21.1.013021 . Submission:
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