
Proceedings Paper
The influence of BRDF calibration to CT industry NDTFormat | Member Price | Non-Member Price |
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Paper Abstract
Computed Tomography (CT) testing is an important non-destructive testing technology in industry inspection. So the
important work of CT development is the value calibration and the precise result judgment. Bi-directional reflection
distribution function(BRDF) as the common spatial characteristic parameter can be fit for the CT data structure in theory
level and the CT data cube can be calibrated using BRDF in both spectral and spatial. Deferent processing calibrated
images can be achieved by calibrating CT data in deferent dynamic range using corresponding BRDF absolute value.
Thus the influence of BRDF calibration to CT data can be achieved from these serial calibration data and the optimized
arithmetic model for this calibration is established. Furthermore, the uncertainty of this value traceability and calibration
is analyzed and a corresponding example in CT industry NDT is given which illustrate that this calibration is useful in
analysis of PT image because it provide more true image and reduce the probability of error judgment.
Paper Details
Date Published: 11 November 2010
PDF: 9 pages
Proc. SPIE 7855, Optical Metrology and Inspection for Industrial Applications, 78551C (11 November 2010); doi: 10.1117/12.868317
Published in SPIE Proceedings Vol. 7855:
Optical Metrology and Inspection for Industrial Applications
Kevin Harding; Peisen S. Huang; Toru Yoshizawa, Editor(s)
PDF: 9 pages
Proc. SPIE 7855, Optical Metrology and Inspection for Industrial Applications, 78551C (11 November 2010); doi: 10.1117/12.868317
Show Author Affiliations
Ningfang Liao, Beijing Institute of Technology (China)
Published in SPIE Proceedings Vol. 7855:
Optical Metrology and Inspection for Industrial Applications
Kevin Harding; Peisen S. Huang; Toru Yoshizawa, Editor(s)
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