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Proceedings Paper

Elimination of reflection induced artifacts in flash thermography
Author(s): Lichun Feng; Peng Zou; Ning Tao
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Paper Abstract

Pulsed thermography is a technique in which pulsed flash energy is applied to the surface and the temperature of the surface is recorded and analysed. Generally the temperature above the defect areas is different from that of the surrounding area. However, when the surface of the specimen is highly reflective, artifact of fixed pattern could be introduced which comes from the reflection of the heated lamp tube. Several methods were used to eliminate the artifact, including spatial filtering, image subtraction and frequency domain filtering. Results show that spatial filtering may be the best method of the fixed pattern artifact elimination.

Paper Details

Date Published: 16 November 2010
PDF: 7 pages
Proc. SPIE 7854, Infrared, Millimeter Wave, and Terahertz Technologies, 78540S (16 November 2010); doi: 10.1117/12.869901
Show Author Affiliations
Lichun Feng, Capital Normal Univ. (China)
Peng Zou, Capital Normal Univ. (China)
Ning Tao, Capital Normal Univ. (China)

Published in SPIE Proceedings Vol. 7854:
Infrared, Millimeter Wave, and Terahertz Technologies
Cunlin Zhang; Xi-Cheng Zhang; Peter H. Siegel; Li He; Sheng-Cai Shi, Editor(s)

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