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http://dx.doi.org/10.6109/jkiice.2014.18.8.2043

The study of the stereo X-ray system for automated X-ray inspection system using 3D-reconstruction shape information  

Hwang, Young-Gwan (Korea Atomic Energy Research Institute)
Lee, Nam-Ho (Korea Atomic Energy Research Institute)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.18, no.8, 2014 , pp. 2043-2050 More about this Journal
Abstract
As most the scanning systems developed until now provide radiation scan plane images of the inspected objects, there has been a limitation in judging exactly the shape of the objects inside a logistics container exactly with only 2-D radiation image information. As a radiation image is just the density information of the scanned object, the direct application of general stereo image processing techniques is inefficient. So we propose that a new volume-based 3-D reconstruction algorithm. Experimental results show the proposed new volume based reconstruction technique can provide more efficient visualization for X-ray inspection. For validation of the proposed shape reconstruction algorithm using volume, 15 samples were scanned and reconstructed to restore the shape using an X-ray stereo inspection system. Reconstruction results of the objects show a high degree of accuracy compared to the width (2.56%), height (6.15%) and depth (7.12%) of the measured value for a real object respectively. In addition, using a K-Mean clustering algorithm a detection efficiency of 97% is achieved. The results of the reconstructed shape information using the volume based shape reconstruction algorithm provide the depth information of the inspected object with stereo X-ray inspection. Depth information used as an identifier for an automated search is possible and additional studies will proceed to retrieve an X-ray inspection system that can greatly improve the efficiency of an inspection.
Keywords
Stereo X-ray Image; X-ray Inspection; Automated X-ray; Volume Reconstruction;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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1 Gupta, R., A. Noble, R. Hartley, J. Mundy, A. Schmitz, Camera calibration for 2.5-D X=ray metrology. Proc. ICIP'95, Vol.3, (1995)
2 Domingo Mery, "X-ray Testing: The State of the Art.", The e-Journal of Nondestructive Testing(NDT), Vol. 18, No. 09, pp. 01, 2013.
3 Hitachi, "Cargo cintainer X-ray inspection systems", Hitachi Review Vol. 53, No. 2, pp. 97, 2004.
4 A. Noble, R. Gupta, J. Mundy, A. Schmitz, R. Hartley, W. Hoffman, "CAD-based inspection using X-ray stereo", Proceedings - IEEE International Conference on Robotics and Automation, pp. 23
5 Gupta, R. and R. Hartley, Linear push- broom camera, IEEE Trans PAMI, 19(9), pp963-975, (1997)   DOI   ScienceOn
6 Zhigang Zhu and Yu-Chi Hu, "Gamma /x-ray linear pushbroom stereo for 3D cargo inspection," Proc. SPIE, Conference on Non-Intrusive Inspection Technologies, Vol. 6213, 621304, (2006)
7 Younggwan-Hwang, Namho-Lee, Seungmin-Lee "The Study of the Geometric Structure Optimization for the Stereo X-ray Inspection System Using the Calibration" Journal of the KAIS, Vol.11, No.9, pp 3422-3427, 2010   과학기술학회마을   DOI
8 Nam-ho Lee, Young-Gwan Hwang, Jong-Won Park, Yong-gon Lim "A Study on Stereo Visualization of the X-ray Scanned Image Based on Dual-line Sensors," Journal of the KIICE, Vol.14, No.9, (2010)   과학기술학회마을   DOI   ScienceOn
9 Nam-ho Lee, Soon-Yong Park, Young-Gwan Hwang, Jong-Won Park, Yong-gon Lim "A Study on Stereo Visualization of the X-ray Scanned Image Based on Volume Reconstruction", Journal of the KIICE, Vol. 15, No. 7, pp. 1583-1590, (2011).   과학기술학회마을   DOI   ScienceOn