Poster
20 May 2022 Application of compressive sensing for image acquisition in different environments
Giorgio Pariani, Luca Oggioni, Michele Frangiamore, Lorenzo Cabona, Paola Galli, Alessio Zanutta, Andrea Bianco
Author Affiliations +
Conference Poster
Abstract
Compressive sensing (CS) is a new acquisition technique that can potentially open the way to multi- and hyper-spectral imaging in wide spectral regions with a simplified optical scheme. In this framework, we are studying different approaches applied to Earth observation in different contexts. We describe the design of a vis-NIR telescope, where the image sampling is performed in its focal plane with a Digital Micromirror Device (DMD), and the hyperspectral acquisition is made possible by a compact spectrometer with a multispectral detector. We show the approach for a pushbroom multispectral acquisition from space, working in both the visible and thermal bands, to monitor the status of the cryosphere. Finally, we describe a compact wideband system working in the 0.4- 2.5 micron spectral range, based on three parallel spectrometers, where the acquisition is performed with a pushbroom scanning and a rotating coding mask. Opportunities and constraints given by the CS approach in these different contexts are highlighted.
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Giorgio Pariani, Luca Oggioni, Michele Frangiamore, Lorenzo Cabona, Paola Galli, Alessio Zanutta, and Andrea Bianco "Application of compressive sensing for image acquisition in different environments", Proc. SPIE PC12136, Unconventional Optical Imaging III, PC121361B (20 May 2022); https://doi.org/10.1117/12.2622301
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KEYWORDS
Compressed sensing

Environmental sensing

Image acquisition

Spectroscopy

Digital micromirror devices

Hyperspectral systems

Optical instrument design

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