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Mask Responses for Single-Pixel Terahertz Imaging

Frohmann, Sven and Augustin, Sven and Jung, Peter and Hübers, Heinz-Wilhelm (2018) Mask Responses for Single-Pixel Terahertz Imaging. Scientific Reports, 8 (1). Nature Publishing Group. DOI: 10.1038/s41598-018-23313-6 ISSN 2045-2322

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Official URL: http://dx.doi.org/10.1038/s41598-018-23313-6

Abstract

Terahertz (THz) radiation meaning electromagnetic radiation in the range from 0.1 (3) to 10 (30) has the unique advantage of easily penetrating many obstructions while being non-hazardous to organic tissue since it is non-ionizing. A shortcoming of this domain is the limited availability of high-sensitivity detector arrays respective THz cameras with >1k pixels. To overcome the imaging limitations of the THz domain, compressive imaging in combination with an optically controllable THz spatial light modulator is a promising approach especially when used in a single-pixel imaging modality. The imaging fidelity, performance and speed of this approach depend crucially on the imaging patterns also called masks and their properties used in the imaging process. Therefore, in this paper, it is investigated how the image quality after reconstruction is specifically influenced by the different mask types and their properties in a compressive imaging modality. The evaluation uses an liquid-crystal display based projector as spatial light modulator to derive specific guidelines for the use of binary and true greyscale masks in THz single-pixel imaging setups respective THz single-pixel cameras when used in far-field applications e.g. stand-off security imaging.

Item URL in elib:https://elib.dlr.de/126357/
Document Type:Article
Title:Mask Responses for Single-Pixel Terahertz Imaging
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Frohmann, SvenSven.Frohmann (at) dlr.deUNSPECIFIED
Augustin, Svensven.augustin (at) dlr.deUNSPECIFIED
Jung, Peterpeter.jung (at) tu-berlin.deUNSPECIFIED
Hübers, Heinz-Wilhelmheinz-wilhelm.huebers (at) dlr.deUNSPECIFIED
Date:20 March 2018
Journal or Publication Title:Scientific Reports
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:8
DOI :10.1038/s41598-018-23313-6
Publisher:Nature Publishing Group
Series Name:Scientific Reports
ISSN:2045-2322
Status:Published
Keywords:THz, Single Pixel Camera, Masks, Computational Imaging
HGF - Research field:other
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:no assignment
DLR - Program:no assignment
DLR - Research theme (Project):no assignment
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Optical Sensor Systems > Terahertz and Laser Spectroscopy
Deposited By: Frohmann, Sven
Deposited On:12 Feb 2019 08:46
Last Modified:09 May 2019 08:09

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