A compact, active hyperspectral imaging system for the detection of concealed targets

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dc.contributor.author Johnson, Bernadette en_US
dc.contributor.author Joseph, Rose en_US
dc.contributor.author Nischan, Melissa en_US
dc.contributor.author Newbury, Amy en_US
dc.contributor.author Kerekes, John en_US
dc.contributor.author Barclay, Herb en_US
dc.contributor.author Willard, Berton en_US
dc.contributor.author Zayhowski, John en_US
dc.date.accessioned 2006-12-18T17:56:00Z en_US
dc.date.available 2006-12-18T17:56:00Z en_US
dc.date.issued 1999-04-05 en_US
dc.identifier.citation Detection and Remediation Technologies for Mines and Minelike Targets IV 3710 (1999) 144-153 en_US
dc.identifier.issn 0277-786X en_US
dc.identifier.uri http://hdl.handle.net/1850/3136 en_US
dc.description "A Compact, active hyperspectral imaging system for the detection of concealed targets," Detection and Remediation Technologies for Mines and Minelike Targets IV. International Society of Optical Engineers. Held at AeroSense in Orlando, Florida: 5-9 April 1999. Copyright 1999 Society of Photo-Optical Instrumentation Engineers. This paper was published in Detection and Remediation Technologies for Mines and Minelike Targets IV, vol. 3710 and is made available as an electronic reprint with permission of SPIE. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. en_US
dc.description.abstract We have recently conducted a series of laboratory and field tests to demonstrate the utility of combining active illumination with hyperspectral imaging for the detection of concealed targets in natural terrain. The active illuminator, developed at MIT Lincoln Laboratory, is a novel microlaser-pumped fiber Raman source that provides high-brightness, subnanosecond-pulse-length output spanning the visible through near-infrared spectral range. The hyperspectral-imaging system is comprised of a compact, grating-based spectrometer that uses a gateable, intensified CCD array as the detector element. The illuminator and hyperspectral imaging system are mounted on a small platform that is itself mounted on a tripod and scanned in azimuth to build an image scene of up to several hundred spectral bands. The system has been deployed under a variety of environmental conditions, including night-time illumination, and on a variety of target scenes, including exposed and concealed plastic and metallic mine-like targets. Targets have been detected and identified on the basis of spectral reflectance, fluorescence signatures, degree of polarization, and range-to-target information (via range gating). The combination of laser-like broadband illumination and hyperspectral imaging offers great promise in concealed or obscured target detection. Ongoing developments include the incorporation of broadband illuminators in the 1 to 2 pm and 3 to 5 pm spectral bands, with corresponding increases in spectral coverage ofthe imaging and detection systems. en_US
dc.description.sponsorship The work presented in this paper was sponsored under Air Force Contract number F19628-95-C-0002. Opinions, interpretations, conclusions, and recommendations are those ofthe authors and are not necessarily endorsed by the United States Air Force. en_US
dc.format.extent 2541867 bytes en_US
dc.format.mimetype application/pdf en_US
dc.language.iso en_US en_US
dc.publisher International Society for Optical Engineering (SPIE) en_US
dc.relation.ispartofseries vol. 3710 en_US
dc.subject Fiber Raman laser en_US
dc.subject Hyperspectral imaging en_US
dc.subject Landmine detection en_US
dc.subject Laser illumination en_US
dc.subject Target detection en_US
dc.title A compact, active hyperspectral imaging system for the detection of concealed targets en_US
dc.type Proceedings en_US

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