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Proceedings Paper

Information enhancement, metrics, and data fusion in spectral and polarimetric images of natural scenes
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Paper Abstract

In order to understand the phenomenology of optimum data acquisition and analysis and to develop an understanding of capabilities, field measurements of multiband, polarimetric data can substantially assist in developing a methodology to collect and to exploit feature signatures. In 1999, Duggin showed that images obtained with an 8-bit camera used as a polarimeter could yield additional information to that contained in a radiometric (S0) image. It should be noted that Walraven and Curran had performed some very fine experiments almost two decades earlier, using photographic film, and North performed careful polarimetric measurements of the skydome using a four-lens polarimetric film camera and convex mirror in 1997. There have been a number of papers dealing with polarimetric field measurements since that time. Recently, commercial color cameras have become available that have 12-bit depth per channel. Here, we perform radiometric and chromatic calibrations and examine the possible use of a Nikon D200 10.2 mega pixel, 3 channel, 12-bit per channel camera fitted with a zoom lens as a potential field imaging polarimeter. We show that there are still difficulties in using off-the-shelf technology for field applications, but list some reasons why we need to address these challenges, in order to understand the phenomenology of data collection and analysis metrics for multiple data streams.

Paper Details

Date Published: 13 September 2007
PDF: 9 pages
Proc. SPIE 6682, Polarization Science and Remote Sensing III, 66820A (13 September 2007); doi: 10.1117/12.737430
Show Author Affiliations
Michael J. Duggin, Air Force Research Lab. (United States)
William R. Glass, Air Force Research Lab. (United States)
Elizabeth R. Cabot, Air Force Research Lab. (United States)
David Bowers, Applied Technology Associates (United States)
David Wellems, Applied Technology Associates (United States)
Paul Alsing, Air Force Research Lab. (United States)

Published in SPIE Proceedings Vol. 6682:
Polarization Science and Remote Sensing III
Joseph A. Shaw; J. Scott Tyo, Editor(s)

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