DocumentCode :
2362096
Title :
Visualizing industrial CT volume data for nondestructive testing applications
Author :
Huang, Runzhen ; Ma, Kwan-Liu ; McCormick, Patrick ; Ward, William
Author_Institution :
California Univ., Davis, CA, USA
fYear :
2003
fDate :
24-24 Oct. 2003
Firstpage :
547
Lastpage :
554
Abstract :
This paper describes a set of techniques developed for the visualization of high-resolution volume data generated from industrial computed tomography for nondestructive testing (NDT) applications. Because the data are typically noisy and contain fine features, direct volume rendering methods do not always give us satisfactory results. We have coupled region growing techniques and a 2D histogram interface to facilitate volumetric feature extraction. The new interface allows the user to conveniently identify, separate or composite, and compare features in the data. To lower the cost of segmentation, we show how partial region growing results can suggest a reasonably good classification function for the rendering of the whole volume. The NDT applications that we work on demand visualization tasks including not only feature extraction and visual inspection, but also modeling and measurement of concealed structures in volumetric objects. An efficient filtering and modeling process for generating surface representation of extracted features is also introduced. Four CT data sets for preliminary NDT are used to demonstrate the effectiveness of the new visualization strategy that we have developed.
Keywords :
computerised tomography; data visualisation; feature extraction; graphical user interfaces; nondestructive testing; rendering (computer graphics); solid modelling; computed tomography; data visualization; feature extraction; hardware-acceleration rendering; image processing; industrial CT volume data; interactive visualization; nondestructive testing; scientific visualization; surface modeling; user interface; volume rendering; volume visualization; Computed tomography; Computer industry; Cost function; Data visualization; Feature extraction; Histograms; Inspection; Nondestructive testing; Rendering (computer graphics); Volume measurement;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Visualization, 2003. VIS 2003. IEEE
Conference_Location :
Seattle, WA, USA
Print_ISBN :
0-7803-8120-3
Type :
conf
DOI :
10.1109/VISUAL.2003.1250418
Filename :
1250418
Link To Document :
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