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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 6, Iss. 3 — Mar. 18, 2011

Validation of temperature imaging by H 2 O absorption spectroscopy using hyperspectral tomography in controlled experiments

Xinliang An, Thilo Kraetschmer, Kuya Takami, Scott T. Sanders, Lin Ma, Weiwei Cai, Xuesong Li, Sukesh Roy, and James R. Gord  »View Author Affiliations


Applied Optics, Vol. 50, Issue 4, pp. A29-A37 (2011)
http://dx.doi.org/10.1364/AO.50.000A29


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Abstract

This paper describes a preliminary demonstration and validation of temperature imaging using hyperspectral H 2 O absorption tomography in controlled experiments. Fifteen wavelengths are monitored on each of 30 laser beams to reconstruct the temperature image in a 381 mm × 381 mm square room- temperature plane that contains a 102 mm × 102 mm square zone of lower or higher temperature. The hyperspectral tomography technique attempts to leverage multispectral information to enhance measurement fidelity. The experimental temperature images exhibit average accuracies of 2.3% or better, with pixel-by-pixel standard deviations of less than 1%. In addition, even when the internal zone is only 4 K cooler than the surroundings, its presence is still detectable; statistical analysis of the associated experimental image reveals a 98% confidence that the internal zone is in fact cooler than the surroundings.

© 2011 Optical Society of America

OCIS Codes
(300.1030) Spectroscopy : Absorption
(300.6340) Spectroscopy : Spectroscopy, infrared
(110.6955) Imaging systems : Tomographic imaging
(280.6780) Remote sensing and sensors : Temperature

ToC Category:
LASER APPLICATIONS TO CHEMICAL, SECURITY, AND ENVIRONMENTAL ANALYSIS

History
Original Manuscript: July 22, 2010
Revised Manuscript: September 14, 2010
Manuscript Accepted: October 20, 2010
Published: November 18, 2010

Virtual Issues
Vol. 6, Iss. 3 Virtual Journal for Biomedical Optics

Citation
Xinliang An, Thilo Kraetschmer, Kuya Takami, Scott T. Sanders, Lin Ma, Weiwei Cai, Xuesong Li, Sukesh Roy, and James R. Gord, "Validation of temperature imaging by H2O absorption spectroscopy using hyperspectral tomography in controlled experiments," Appl. Opt. 50, A29-A37 (2011)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ao-50-4-A29

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