Evaluation of night vision devices for image fusion studies

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Authors
Cheng, Wee Kiang
Subjects
Night Vision Device, NVD
image intensification, II
thermal imaging, TI
contrast transfer function, CTF
modulation transfer function, MTF
image fusion
Advisors
Cooper, Alfred W.
Karunasiri, Gamani
Date of Issue
2004-12
Date
Publisher
Monterey California. Naval Postgraduate School
Language
Abstract
Night Vision Devices (NVD) using Image Intensification (II) technology are among the most important sensors used by ground troops and aviators in night operations for modern combat. With the intensified images from these devices, soldiers can see an enemy's movement better and further in darkness. This thesis explores different test methods in evaluating the performances and sensitivities of several NVDs for future image fusion studies. Specification data such as sensitivity, resolution (Modulation Transfer Function) and pixel size are obtained. Comparative analyses of the collected results are made to characterize the performances of the different NVDs. A new method using MATLAB programming to objectively analyze digitized images for characterization of II based NVDs is proposed. This test method can also be extended to the evaluation of Thermal Imaging (TI) systems for comparative analysis with II NVDs. In addition, the feasibility of testing NVDs using both II and TI technologies, with common operating conditions and target boards is discussed. Finally, the potential of using these digitized images for image fusion studies is verified with the test and evaluation results.
Type
Thesis
Description
URI
https://hdl.handle.net/10945/1280
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Department
Department of Physics
Organization
Naval Postgraduate School
Identifiers
NPS Report Number
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Format
xiv, 121 p. : ill. (some col.) ;
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Approved for public release; distribution is unlimited.
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