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Evaluation criteria for spectral design of camouflage
Linköping University, Department of Physics, Chemistry and Biology. Linköping University, Faculty of Science & Engineering. FOI, Linköping, Sweden.
FOI, Linköping, Sweden.
FOI, Linköping, Sweden.
FOI, Linköping, Sweden.
2015 (Swedish)In: Proc. SPIE 9653, Target and Background Signatures / [ed] Karin U. Stein; Ric H. M. A. Schleijpen, SPIE - International Society for Optical Engineering, 2015, Vol. 9653, 9653-2- p.Conference paper (Refereed)
Abstract [en]

In development of visual (VIS) and infrared (IR) camouflage for signature management, the aim is the design of surface properties of an object to spectrally match or adapt to a background and thereby minimizing the contrast perceived by a threatening sensor. The so called 'ladder model" relates the requirements for task measure of effectiveness with surface structure properties through the steps signature effectiveness and object signature. It is intended to link materials properties via platform signature to military utility and vice versa. Spectral design of a surface intends to give it a desired wavelength dependent optical response to fit a specific application of interest. Six evaluation criteria were stated, with the aim to aid the process to put requirement on camouflage and for evaluation. The six criteria correspond to properties such as reflectance, gloss, emissivity, and degree of polarization as well as dynamic properties, and broadband or multispectral properties. These criteria have previously been exemplified on different kinds of materials and investigated separately. Anderson and Åkerlind further point out that the six criteria rarely were considered or described all together in one and same publication previously. The specific level of requirement of the different properties must be specified individually for each specific situation and environment to minimize the contrast between target and a background. The criteria or properties are not totally independent of one another. How they are correlated is part of the theme of this paper. However, prioritization has been made due to the limit of space. Therefore all of the interconnections between the six criteria will not be considered in the work of this report. The ladder step previous to digging into the different material composition possibilities and choice of suitable materials and structures (not covered here), includes the object signature and decision of what the spectral response should be, when intended for a specific environment. The chosen spectral response should give a low detection probability (DP). How detection probability connects to image analysis tools and implementation of the six criteria is part of this work.

Place, publisher, year, edition, pages
SPIE - International Society for Optical Engineering, 2015. Vol. 9653, 9653-2- p.
, SPIE Proceedings, ISSN 0277-786X; 1996-756X (online) ; 9653
National Category
Computer Vision and Robotics (Autonomous Systems)
URN: urn:nbn:se:liu:diva-123734DOI: 10.1117/12.2194828ISBN: 9781628418637OAI: diva2:892742
Target and Background Signatures, Toulouse, France, 23–24 September 2015
Available from: 2016-01-11 Created: 2016-01-11 Last updated: 2016-01-18Bibliographically approved

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Åkerlind, Christina
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