Polarization visual enhancement technique for LWIR microgrid polarimeter imagery

Bradley M. Ratliff, J Scott Tyo, Wiley T. Black, James K. Boger, David L. Bowers

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

Division of focal plane (DoFP) polarimeters are a particular class of imaging device that consists of an array of micropolarizers integrated upon a focal plane array sensor (FPA). Such devices are also called microgrid polarimeters and have been studied over the past decade with systems being designed and built in all regions of the optical spectrum. These systems are advantageous due to their rugged, compact design and ability to obtain a complete set of polarimetric measurements during a single frame capture. One inherent disadvantage of DoFP systems is that each pixel of the FPA sensor makes a polarized intensity measurement of a different scene point. These spatial measurements are then used to estimate the Stokes vectors across the scene. Since each polarized intensity measurement has a different instantaneous field-of-view (IFOV), artifacts are introduced that can degrade the quality of estimated polarization imagery. Here we develop and demonstrate a visual enhancement technique that is able to reduce false polarization caused by IFOV error while preserving true polarization content within the Stokes parameter images. The technique is straight-forward conceptually and is computationally efficient. All results are presented using data acquired from an actual LWIR microgrid sensor.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Volume6972
DOIs
StatePublished - 2008
EventPolarization: Measurement, Analysis, and Remote Sensing VIII - Orlando, FL, United States
Duration: Mar 18 2008Mar 19 2008

Other

OtherPolarization: Measurement, Analysis, and Remote Sensing VIII
CountryUnited States
CityOrlando, FL
Period3/18/083/19/08

Fingerprint

Polarimeters
polarimeters
imagery
Polarization
Focal plane arrays
augmentation
sensors
Sensors
focal plane devices
polarization
division
field of view
preserving
artifacts
optical spectrum
Pixels
pixels
Imaging techniques
estimates

Keywords

  • Focal Plane Array
  • Image Processing
  • Long-wave Infrared
  • Microgrid
  • Polarimetry
  • Polarinieter
  • Remote Sensing
  • Signal Enhancement

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Ratliff, B. M., Tyo, J. S., Black, W. T., Boger, J. K., & Bowers, D. L. (2008). Polarization visual enhancement technique for LWIR microgrid polarimeter imagery. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 6972). [69720N] https://doi.org/10.1117/12.783079

Polarization visual enhancement technique for LWIR microgrid polarimeter imagery. / Ratliff, Bradley M.; Tyo, J Scott; Black, Wiley T.; Boger, James K.; Bowers, David L.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 6972 2008. 69720N.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ratliff, BM, Tyo, JS, Black, WT, Boger, JK & Bowers, DL 2008, Polarization visual enhancement technique for LWIR microgrid polarimeter imagery. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 6972, 69720N, Polarization: Measurement, Analysis, and Remote Sensing VIII, Orlando, FL, United States, 3/18/08. https://doi.org/10.1117/12.783079
Ratliff BM, Tyo JS, Black WT, Boger JK, Bowers DL. Polarization visual enhancement technique for LWIR microgrid polarimeter imagery. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 6972. 2008. 69720N https://doi.org/10.1117/12.783079
Ratliff, Bradley M. ; Tyo, J Scott ; Black, Wiley T. ; Boger, James K. ; Bowers, David L. / Polarization visual enhancement technique for LWIR microgrid polarimeter imagery. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 6972 2008.
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