Compressive Spectral Imaging via Polar Coded Aperture

A compressive spectral imager based on a polar coded aperture and a continuous variable circular bandpass filter is proposed for spinning munitions. As the imager rotates with the munition, compressive projections are sequentially captured with embedded spatial and spectral modulation. The polar cod...

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Bibliographic Details
Published inIEEE transactions on computational imaging Vol. 3; no. 3; pp. 408 - 420
Main Authors Chen Fu, Don, Michael L., Arce, Gonzalo R.
Format Journal Article
LanguageEnglish
Published IEEE 01.09.2017
Subjects
Apertures
circular viable filter
Compressed sensing
continuous rotation model
Image coding
Modulation
polar coded aperture
Sensors
Spatial resolution
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Summary:A compressive spectral imager based on a polar coded aperture and a continuous variable circular bandpass filter is proposed for spinning munitions. As the imager rotates with the munition, compressive projections are sequentially captured with embedded spatial and spectral modulation. The polar coded aperture design is introduced, aiming at optimizing the sensing process. Both discrete and continuous rotation models of the proposed imager are derived and used to characterize the compressive imager. Computer simulations validate the computational models and the reconstruction algorithm.
ISSN:2573-0436
2333-9403
2333-9403
DOI:10.1109/TCI.2016.2617740