Measurement and application of an infrared image restoration filter to improve the accuracy of surface temperature measurements of cubes

Measurement and application of an infrared image restoration filter to improve the accuracy of...  This paper presents the experimental investigation of the application of an image restoration technique aimed at improving the accuracy of infrared surface temperature measurements of cubes placed in a vertical channel flow. These cubes, used to determine distributions of the local heat transfer coefficient, show large spatial temperature gradients. The image restoration technique, developed to correct the spatial image degradation, is based on the two-dimensional Optical Transfer Function constructed from line spread functions (LSF). The benefit of the application of the infrared image restoration technique is verified with temperature measurements acquired from a second independent technique. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Experiments in Fluids Springer Journals

Measurement and application of an infrared image restoration filter to improve the accuracy of surface temperature measurements of cubes

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Publisher
Springer-Verlag
Copyright
Copyright © 1999 by Springer-Verlag Berlin Heidelberg
Subject
Engineering; Engineering Fluid Dynamics; Fluid- and Aerodynamics; Engineering Thermodynamics, Heat and Mass Transfer
ISSN
0723-4864
eISSN
1432-1114
D.O.I.
10.1007/s003480050267
Publisher site
See Article on Publisher Site

Abstract

 This paper presents the experimental investigation of the application of an image restoration technique aimed at improving the accuracy of infrared surface temperature measurements of cubes placed in a vertical channel flow. These cubes, used to determine distributions of the local heat transfer coefficient, show large spatial temperature gradients. The image restoration technique, developed to correct the spatial image degradation, is based on the two-dimensional Optical Transfer Function constructed from line spread functions (LSF). The benefit of the application of the infrared image restoration technique is verified with temperature measurements acquired from a second independent technique.

Journal

Experiments in FluidsSpringer Journals

Published: Jan 1, 1999

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