Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

A Semi-Synthetic Study of Multidimensional Imaging using a Scattering Lens

Version 1 : Received: 1 June 2022 / Approved: 3 June 2022 / Online: 3 June 2022 (12:50:31 CEST)

How to cite: Gopinath, S. A Semi-Synthetic Study of Multidimensional Imaging using a Scattering Lens. Preprints 2022, 2022060049. https://doi.org/10.20944/preprints202206.0049.v1 Gopinath, S. A Semi-Synthetic Study of Multidimensional Imaging using a Scattering Lens. Preprints 2022, 2022060049. https://doi.org/10.20944/preprints202206.0049.v1

Abstract

Scattering has been always considered a problem in most of the imaging and holography systems. In this project, a 3D imaging system has been developed based on scattering against common beliefs. The 3D imaging system consists of only two components namely a scattering lens, fabricated by grinding the surface of a convex lens using sandpaper and a web camera. The point spread function (PSF) in the form of speckle distribution was recorded using a laser source in the first step. A synthetic object was selected which was convolved with the PSF in a computer to generate the object intensity distribution. The image of the object was reconstructed by processing the PSF and object intensity distribution using a computational reconstruction method called non-linear reconstruction. The recorded PSF was scaled and the process was repeated for a different synthetic object. The concept was extended to 3D by summing the object intensity distributions generated using PSFs with different scaling factors. The image at different planes can be reconstructed using the PSFs corresponding to that plane.

Keywords

Computational Imaging; Non-linear reconstruction (NLR); Holography; scattering lens; 3D imaging

Subject

Physical Sciences, Optics and Photonics

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