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Applied Optics

Applied Optics


  • Vol. 40, Iss. 36 — Dec. 20, 2001
  • pp: 6626–6632

Object detection with a field-portable spectropolarimetric imager

Neelam Gupta, Louis J. Denes, Milton Gottlieb, Dennis R. Suhre, Boris Kaminsky, and Peter Metes  »View Author Affiliations

Applied Optics, Vol. 40, Issue 36, pp. 6626-6632 (2001)

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A relatively compact, lightweight, and programmable spectropolarimetric imager was used to collect spectral and polarization data from various objects and backgrounds, both in the laboratory and in field tests. This imager uses a tellurium dioxide (TeO2) acousto-optic tunable filter and a liquid-crystal retardation plate with a CCD camera. The spectral images were collected 450–1000 nm at 10- or 20-nm intervals at two or four polarization settings for each spectral interval. We analyzed a portion of these data to assess the effectiveness of this system for object detection. We present our measurements and discuss the analysis results.

© 2001 Optical Society of America

OCIS Codes
(070.4790) Fourier optics and signal processing : Spectrum analysis
(100.2960) Image processing : Image analysis
(100.5010) Image processing : Pattern recognition
(120.5410) Instrumentation, measurement, and metrology : Polarimetry
(230.1040) Optical devices : Acousto-optical devices
(230.3720) Optical devices : Liquid-crystal devices

Original Manuscript: April 6, 2001
Revised Manuscript: August 28, 2001
Published: December 20, 2001

Neelam Gupta, Louis J. Denes, Milton Gottlieb, Dennis R. Suhre, Boris Kaminsky, and Peter Metes, "Object detection with a field-portable spectropolarimetric imager," Appl. Opt. 40, 6626-6632 (2001)

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  1. N. Gupta, R. Dahmani, K. Bennett, S. Simizu, D. R. Suhre, N. B. Singh, “Progress in AOTF hyperspectral imagers,” in Automated Geo-Spatial Image and Data Exploitation, W. E. Roper, M. K. Hamilton, eds., Proc. SPIE4054, 30–38 (2000). [CrossRef]
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