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http://dx.doi.org/10.5762/KAIS.2010.11.9.3422

The Study of the Geometric Structure Optimization for the Stereo X-ray Inspection System Using the Calibration  

Hwang, Young-Gwan (Korea Atomic Energy Research Institute)
Lee, Nam-Ho (Korea Atomic Energy Research Institute)
Lee, Seung-Min (Chungnam National University)
Park, Jong-Won (Chungnam National University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.11, no.9, 2010 , pp. 3422-3427 More about this Journal
Abstract
In this paper, we presents a sensor calibration technique using stereo X-ray images to provide efficient inspection of fast moving cargo objects. Stereo X-ray scanned images are acquired from a specially designed equipment which consists of a X-ray source, dual-linear array detector, and a conveyor system. Dual detector is installed so that rectified stereo X-ray images of objects are acquired. Using the stereo X-ray images, we carry out a sensor calibration to find the correspondences between the images and reconstruct 3-D shapes of real objects. Using the Image acquired from the stereo detectors with varying distances, we calculated the GCP(ground control point)of the image. And we figure out the error by comparing calculated GCP and GCP of the real object. The experimental results show the proposed technique can enhance the accuracy of stereo matching and give more efficient visualization for cargo inspection image.
Keywords
Stereo X-ray; Calibration; Inspection System; Parallel-perspective Projection;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Rafael C. Gonzalez, Richard E. Woods, Digital Image Processing, 2nd Ed, Prentice Hall, New Jersey, 2002.
2 Avinash C. Kak, Malcolm Slaney, Principles of Computerized Tomographic Imaging, 1st, Society for Industrial and Applied Mathematics, Philadelphia, 2001.
3 Gupta, R., A. Noble, R. Hartley, j.Mundy, A. Schmitz, 1995. Camera Calibration for 2.5D X-ray metrology. In Proc. ICIP'95, Vol.3, Oct 23-26, 1995.
4 Noble, A., R. Hartley, J. Mundy and J. Farley. X-ray metrology for Quality Assurance, In Proc IEEE ICRA'94, vol 2, pp1113-1119, 1994.
5 A. Noble, R. Gupta, J. Mundy, A. Schmitz, R. Hartley and W. Hoffman, CAD-based Inspection Using X-Ray Stereo, IEEE international conference on Robotics and automation, pp 2361-2366, 1995.
6 조영호, X-ray 컨테이너 화물검색시스템의 전자선형 가속기 주변 콘크리트 차폐벽 내 방사화 생성물에 대한 몬테카를로법 평가, 한국산학기술학회논문지, Vol. 11, No. 3, pp. 1035-1039, 2010.
7 강현우, 황보현, 윤종호, 조태경, 최명렬, 히스토그램 보정을 통한 적응형 명암비 향상방법, 한국산학기술학회논문지, Vol 11, No. 3, pp958-964, 2010.