Crosstalk and noise in division-of-focal-plane polarimeters and polarization imaging applications
Deliwala, Amit
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https://hdl.handle.net/2142/106502
Description
Title
Crosstalk and noise in division-of-focal-plane polarimeters and polarization imaging applications
Author(s)
Deliwala, Amit
Issue Date
2019-12-11
Director of Research (if dissertation) or Advisor (if thesis)
Gruev, Viktor
Department of Study
Electrical & Computer Eng
Discipline
Electrical & Computer Engr
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
M.S.
Degree Level
Thesis
Keyword(s)
polarimetry
polarization imaging
division of focal plane
underwater geolocalization
error propagation
shot noise
Abstract
A modern division-of-focal-plane (DoFP) polarimeter is manufactured by integrating a pixelated microgrid polarizer array directly onto an image sensor. Recent advances in complementary metal oxide semiconductor (CMOS) technology have led to sensors with pixel sizes on the order of a micron, which greatly increases spatial crosstalk. This work develops the fundamental limitations of DoFP polarimeters due to noise and expands upon how spatial crosstalk affects the reconstruction of the Stokes parameters. Experimental data is presented confirming the presented mathematical model and further emphasizing the detrimental effects of crosstalk on estimation of relevant polarization parameters for biomedical applications using quantitative polarized light imaging. Also discussed is modeling for underwater geolocalization based upon polarized light fields.
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