Role of 3-D graphics in NDT data processing

Citation
A. Mcnab et al., Role of 3-D graphics in NDT data processing, IEE P-SCI M, 148(4), 2001, pp. 149-158
Citations number
20
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
IEE PROCEEDINGS-SCIENCE MEASUREMENT AND TECHNOLOGY
ISSN journal
13502344 → ACNP
Volume
148
Issue
4
Year of publication
2001
Pages
149 - 158
Database
ISI
SICI code
1350-2344(200107)148:4<149:RO3GIN>2.0.ZU;2-H
Abstract
Visualisation in 3-D can significantly improve the interpretation and under standing of imaged NDT data sets. The advantages of using 3-D graphics to a ssist in the interpretation of ultrasonic data are discussed in the context of an advanced software environment for the reconstruction, visualisation and analysis of 3-D images within a component CAD model. The software combi nes the analysis features of established 2-D packages with facilities for r eal-time data rotation, interactive orthogonal/oblique slicing and 'true' i mage reconstruction, where scanning-surface shape and reflection from compo nent boundaries are accounted for through interaction with the full 3-D mod el of the component. A number of novel facilities exploit the graphics capa bility of the system. These include the overlay of 3-D images with individu al control of image transparency; a floating tooltip window for interrogati on of data point co-ordinates and amplitude; image annotation tools, includ ing 3-D distance measurement; and automated defect sizing based on '6dB dro p' and,maximum amplitude' methods. A graphical user interface has also been designed for a well established flaw response model, which allows the user to easily specify the flaw size, shape, orientation and location; probe pa rameters and scan pattern on the component. The output is presented as a si mulated ultrasound image.