Nonlinear Reconstruction of Images from Patterns Generated by Deterministic or Random Optical Masks—Concepts and Review of Research

Author:

Smith Daniel,Gopinath Shivasubramanian,Arockiaraj Francis Gracy,Reddy Andra Naresh KumarORCID,Balasubramani VinothORCID,Kumar RaviORCID,Dubey Nitin,Ng Soon HockORCID,Katkus Tomas,Selva Shakina Jothi,Renganathan Dhanalakshmi,Kamalam Manueldoss Beaula Ruby,John Francis Rajeswary Aravind Simon,Navaneethakrishnan Srinivasan,Inbanathan Stephen RajkumarORCID,Valdma Sandhra-Mirella,Praveen Periyasamy Angamuthu,Amudhavel JayavelORCID,Kumar ManojORCID,Ganeev Rashid A.,Magistretti Pierre J.,Depeursinge Christian,Juodkazis SauliusORCID,Rosen JosephORCID,Anand VijayakumarORCID

Abstract

Indirect-imaging methods involve at least two steps, namely optical recording and computational reconstruction. The optical-recording process uses an optical modulator that transforms the light from the object into a typical intensity distribution. This distribution is numerically processed to reconstruct the object’s image corresponding to different spatial and spectral dimensions. There have been numerous optical-modulation functions and reconstruction methods developed in the past few years for different applications. In most cases, a compatible pair of the optical-modulation function and reconstruction method gives optimal performance. A new reconstruction method, termed nonlinear reconstruction (NLR), was developed in 2017 to reconstruct the object image in the case of optical-scattering modulators. Over the years, it has been revealed that the NLR can reconstruct an object’s image modulated by an axicons, bifocal lenses and even exotic spiral diffractive elements, which generate deterministic optical fields. Apparently, NLR seems to be a universal reconstruction method for indirect imaging. In this review, the performance of NLR isinvestigated for many deterministic and stochastic optical fields. Simulation and experimental results for different cases are presented and discussed.

Funder

European Union

Australian Research Council

State Education Development Agency

Publisher

MDPI AG

Subject

Electrical and Electronic Engineering,Computer Graphics and Computer-Aided Design,Computer Vision and Pattern Recognition,Radiology, Nuclear Medicine and imaging

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