Super-resolution using Barker-based array projected via spatial light modulator

2015 ◽  
Vol 40 (8) ◽  
pp. 1802 ◽  
Author(s):  
Asaf Ilovitsh ◽  
Tali Ilovitsh ◽  
Eyal Preter ◽  
Nadav Levanon ◽  
Zeev Zalevsky
Keyword(s):  
Spatial Light Modulator ◽  
Super Resolution ◽  
Light Modulator

SISSI Project: A Feasibility Study for a Super Resolved Compressive Sensing Multispectral Imager in the Medium Infrared

2021 ◽  
Vol 8 (1) ◽  
pp. 28
Author(s):  
Cinzia Lastri ◽  
Gabriele Amato ◽  
Massimo Baldi ◽  
Tiziano Bianchi ◽  
Maria Fabrizia Buongiorno ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Compressive Sensing ◽  
Feasibility Study ◽  
Spatial Resolution ◽  
Spatial Light Modulator ◽  
Super Resolution ◽  
Earth Observation ◽  
Light Modulator ◽  
The Core ◽  
Multispectral Imager

This paper describes the activities related to a feasibility study for an Earth observation optical payload, operating in the medium infrared, based on super-resolution and compressive sensing techniques. The presented activities are running in the framework of the ASI project SISSI, aiming to improve ground spatial resolution and mitigate saturation/blooming effects. The core of the payload is a spatial light modulator (SLM): a bidimensional array of micromirrors electronically actuated. Thanks to compressive sensing approach, the proposed payload eliminates the compression board, saving mass, memory and energy consumption.

scholarly journals Synthesis of Super-Oscillatory Point-Spread Functions with Taylor-Like Tapered Sidelobes for Advanced Optical Super-Resolution Imaging

Photonics ◽  
2021 ◽  
Vol 8 (3) ◽  
pp. 64
Author(s):  
Haitang Yang ◽  
George V. Eleftheriades
Keyword(s):  
Spatial Light Modulator ◽  
Super Resolution ◽  
Sidelobe Level ◽  
Light Modulator ◽  
Point Spread Functions ◽  
Antenna Theory ◽  
Point Spread ◽  
Oscillation Phenomenon ◽  
Resolution Imaging ◽  
Directive Antenna

Recently, the super-oscillation phenomenon has attracted attention because of its ability to super-resolve unlabelled objects in the far-field. Previous synthesis of super-oscillatory point-spread functions used the Chebyshev patterns where all sidelobes are equal. In this work, an approach is introduced to generate super-oscillatory Taylor-like point-spread functions that have tapered sidelobes. The proposed method is based on the Schelkunoff’s super-directive antenna theory. This approach enables the super-resolution, the first sidelobe level and the tapering rate of the sidelobes to be controlled. Finally, we present the design of several imaging experiments using a spatial light modulator as an advanced programmable grating to form the Taylor-like super-oscillatory point-spread functions and demonstrate their superiority over the Chebyshev ones in resolving the objects of two apertures and of a mask with the letter E.

scholarly journals Super resolution imaging achieved by using on-axis interferometry based on a Spatial Light Modulator

2013 ◽  
Vol 21 (8) ◽  
pp. 9615 ◽  
Author(s):  
Anwar Hussain ◽  
J. L. Martínez ◽  
A. Lizana ◽  
J. Campos
Keyword(s):  
Spatial Light Modulator ◽  
Super Resolution ◽  
Light Modulator ◽  
Resolution Imaging
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