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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 12, Iss. 26 — Dec. 27, 2004
  • pp: 6574–6588

Multi temporal regression method for mid infrared [3–5µm] emissivity outdoor measurements

Françoise Nerry, Marc Philippe Stoll, and Alain Malaplate  »View Author Affiliations

Optics Express, Vol. 12, Issue 26, pp. 6574-6588 (2004)

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An experimental study to address issues encountered in the determination of surface bi-directional reflectivity and emissivity of materials [3–5µm] region has been conducted in outdoors conditions. The measurement protocol included radiometric infrared camera acquisitions in both [3–5µm] (band-2) and [8-14µm] (band-3). The band-2 bi-directional reflectivity is obtained from a sequence of sunlit and shade measurements. Best results are found with measurements relative to a diffuse aluminum reflector. Direct inversion of band-2 radiometric signal is unstable. A multi-temporal method is introduced and the slope of the linear regression is the searched emisssivity. A detailed analysis is conducted to assess the impact of different sources of systematic errors. The proposed method is found to have a good potential with an estimated measurement error in the range of 2%.

© 2004 Optical Society of America

OCIS Codes
(000.2190) General : Experimental physics
(110.3080) Imaging systems : Infrared imaging
(120.0280) Instrumentation, measurement, and metrology : Remote sensing and sensors
(120.4530) Instrumentation, measurement, and metrology : Optical constants
(120.5630) Instrumentation, measurement, and metrology : Radiometry

ToC Category:
Research Papers

Original Manuscript: October 29, 2004
Revised Manuscript: December 8, 2004
Published: December 27, 2004

Françoise Nerry, Alain Malaplate, and Marc Stoll, "Multi temporal regression method for mid infrared [3-5µm] emissivity outdoor," Opt. Express 12, 6574-6588 (2004)

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