title: Miniature Compressive Ultra-spectral Imaging System Utilizing a Single Liquid Crystal Phase Retarder.
abstract: Spectroscopic imaging has been proved to be an effective tool for many applications in a variety of fields, such as biology, medicine, agriculture, remote sensing and industrial process inspection. However, due to the demand for high spectral and spatial resolution it became extremely challenging to design and implement such systems in a miniaturized and cost effective manner. Using a Compressive Sensing (CS) setup based on a single variable Liquid Crystal (LC) retarder and a sensor array, we present an innovative Miniature Ultra-Spectral Imaging (MUSI) system. The LC retarder acts as a compact wide band spectral modulator. Within the framework of CS, a sequence of spectrally modulated images is used to recover ultra-spectral image cubes. Using the presented compressive MUSI system, we demonstrate the reconstruction of gigapixel spatio-spectral image cubes from spectral scanning shots numbering an order of magnitude less than would be required using conventional systems.
authors.affiliation: Department of Electro-Optical Engineering, Ben-Gurion University of the Negev, P.O.B. 653 Beer-Sheva 8410501, Israel.
authors.forename: Isaac
authors.initials: I
authors.lastname: August
authors.affiliation: Department of Electro-Optical Engineering, Ben-Gurion University of the Negev, P.O.B. 653 Beer-Sheva 8410501, Israel.
authors.forename: Yaniv
authors.initials: Y
authors.lastname: Oiknine
authors.affiliation: Department of Electro-Optical Engineering, Ben-Gurion University of the Negev, P.O.B. 653 Beer-Sheva 8410501, Israel.
authors.forename: Marwan
authors.initials: M
authors.lastname: AbuLeil
authors.affiliation: Department of Electro-Optical Engineering, Ben-Gurion University of the Negev, P.O.B. 653 Beer-Sheva 8410501, Israel.|The Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, P.O.B. 653 Beer-Sheva 8410501, Israel.
authors.forename: Ibrahim
authors.initials: I
authors.lastname: Abdulhalim
authors.affiliation: Department of Electro-Optical Engineering, Ben-Gurion University of the Negev, P.O.B. 653 Beer-Sheva 8410501, Israel.
authors.forename: Adrian
authors.initials: A
authors.lastname: Stern