Polarization visual enhancement technique for LWIR microgrid polarimeter imagery

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

doi:10.1117/12.783079

31 March 2008 Polarization visual enhancement technique for LWIR microgrid polarimeter imagery

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

Proceedings Volume 6972, Polarization: Measurement, Analysis, and Remote Sensing VIII; 69720N (2008) https://doi.org/10.1117/12.783079
Event: SPIE Defense and Security Symposium, 2008, Orlando, Florida, United States

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.

Citation Download Citation

Bradley M. Ratliff, J. Scott Tyo, Wiley T. Black, James K. Boger, and David L. Bowers "Polarization visual enhancement technique for LWIR microgrid polarimeter imagery", Proc. SPIE 6972, Polarization: Measurement, Analysis, and Remote Sensing VIII, 69720N (31 March 2008); https://doi.org/10.1117/12.783079

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available