Window effect of a 3D deep hologram as a base of 3D imaging by means of a selectogram (reference-free selectrogram)

Yuri N. Denisyuk

doi:10.1117/12.206246

12 April 1995 Window effect of a 3D deep hologram as a base of 3D imaging by means of a selectogram (reference-free selectrogram)

Yuri N. Denisyuk

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Proceedings Volume 2406, Practical Holography IX; (1995) https://doi.org/10.1117/12.206246
Event: IS&T/SPIE's Symposium on Electronic Imaging: Science and Technology, 1995, San Jose, CA, United States

Abstract

Method for the recording and reconstruction of 3D images of objects when using a so-called reference-free selectogram is suggested. According to this method, the light scattered by the object is filtered by a horizontal slit and is then split into two components with the help of a diffraction grating that is positioned just in front of a thick-layered photographic plate. The interference pattern that originates as a result of the interaction of the components formed by the diffraction grating is recorded in a light-sensitive material in a form of a 3D deep hologram. The reconstruction of the selectogram is performed by the light scattered by a diffusing screen that is positioned in a so-called window of the system. The analysis of the processes of the selectogram recording and reconstruction in a coherent and noncoherent light is carried out and some properties of the reconstructed image are considered. It is also shown that the structure of the 3D hologram recorded by the system does not practically depend on the wavelength of the recording light. The advantages of the reference-free selectogram are low requirements as to the coherence of the recording and reconstructing light and the insensitivity to the vibrations of the setup during the recording.

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Yuri N. Denisyuk "Window effect of a 3D deep hologram as a base of 3D imaging by means of a selectogram (reference-free selectrogram)", Proc. SPIE 2406, Practical Holography IX, (12 April 1995); https://doi.org/10.1117/12.206246

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KEYWORDS

Holograms

3D image reconstruction

Diffraction gratings

3D image processing

Image processing

Light scattering

Holography

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