Identification of the position of objects in three dimensions using an extended radiography system

Issue title: Selected Papers from the 15th International Symposium on Applied Electromagnetics and Mechanics (ISEM 2011)

Article type: Research Article

Authors: Chlewicki, Wojciech^{a; *} | Baniukiewicz, Piotr^a | Chady, Tomasz^a | Brykalski, Andrzej^a

Affiliations: [a] Department of Electrical Engineering, Westpomeranian University of Technology, Szczecin, Poland

Correspondence: [*] Corresponding author: W. Chlewicki, Department of Electrical Engineering, Westpomeranian University of Technology, ul. Sikorskiego 37, 70-313 Szczecin, Poland. Tel.: +4891 449 4251; Fax: +4891 449 4859; E-mail: chlewi@zut.edu.pl

Abstract: Digital radiography is a very useful tool in nondestructive evaluation. However, single radiographic projection contains information about the potential defect only in two dimensions. Thus, the defects may be overlapped or placed parallel to the X-ray beam. We present how a simple, low-cost extension of an existing radiographic system may increase its capability so that it is possible to localize objects in three dimensions. The presented methodology is based on approximate three-dimensional reconstruction from few projections and depth identification procedure. The proposed method also increases detectability of the potential defect.

Keywords: Digital radiography, image reconstruction, defect detection

DOI: 10.3233/JAE-2012-1457

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 39, no. 1-4, pp. 167-173, 2012