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Accession Number ADA562604
Title Resolution Study of a Hyperspectral Sensor using Computed Tomography in the Presence of Noise.
Publication Date Jun 2012
Media Count 121p
Personal Author S. V. Mantravadi
Abstract Recently, a new type of hyperspectral imaging sensor has been proposed which simultaneously records both spectral data and multiple spatial dimensions. Unlike dispersive imaging spectrometers, chromo-tomographic hyperspectral imaging sensors (CTHIS) record two spatial dimensions as well as a spectral dimension using computed tomography (CT) techniques with only a finite number of spatially-spectrally diverse images. To date, the factors affecting resolution of these sensors have not been examined. This research examines factors affecting resolution, specifically the number of the focus planes needed to resolve a particular object calculated from a theoretical lower bound, determine a method of reconstructing a hyperspectral object in the presence of noise and background and verify the proposed method of reconstruction and the lower bound applying the proposed reconstruction method to laboratory data. Finally, a simple method is proposed and tested to use this sensor in the presence of atmospheric turbulence with a modified reconstructor to blindly estimate the seeing parameter.
Keywords Algorithms
Atmospheric motion
Computerized tomography
Hyperspectral imagery
Infrared detectors
Spectrometers
Theses
Two dimensional


 
Source Agency Non Paid ADAS
NTIS Subject Category 57E - Clinical Medicine
99F - Physical & Theoretical Chemistry
Corporate Author Air Force Inst. of Tech., Wright-Patterson AFB, OH. Graduate School of Engineering and Management.
Document Type Thesis
Title Note Doctoral thesis.
NTIS Issue Number 1225
Contract Number N/A

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