Metal artifact removal (MAR) analysis for the security inspections using the X-ray computed tomography

Abstract Using the metal artifact property, it is analyzed for the X-ray computed tomography (CT) in the aspect of the security on the examined places like airport and surveillance areas. Since the importance of terror prevention strategy has been increased, the security application of X-ray CT has the significant remark. One shot X-ray image has the limitation to find out the exact shape to property in the closed box, which could be solved by the CT scanning without the tearing off the box in this work. Cleaner images can be obtained by the advanced technology if the CT scanning is utilized in the security purposes on the secured areas. A metal sample is treated by the metal artifact removal (MAR) method for the enhanced image. The mimicked explosive is experimented for the imaging processing application where the cleaner one is obtained. The procedure is explained and the further study is discussed.

[1]  J. Verburg,et al.  CT metal artifact reduction method correcting for beam hardening and missing projections , 2012, Physics in medicine and biology.

[2]  W. Kalender,et al.  Reduction of CT artifacts caused by metallic implants. , 1987 .

[3]  F. Boas,et al.  CT artifacts: Causes and reduction techniques , 2012 .

[4]  S. Zhao,et al.  X-ray CT metal artifact reduction using wavelets: an application for imaging total hip prostheses , 2000, IEEE Transactions on Medical Imaging.

[5]  Gary H. Glover,et al.  An algorithm for the reduction of metal clip artifacts in CT reconstructions. , 1981 .

[6]  I J Chetty,et al.  Changes realized from extended bit-depth and metal artifact reduction in CT. , 2013, Medical physics.

[7]  T. Buzug,et al.  Modified MLEM Algorithm for Artifact Suppression in CT , 2006, 2006 IEEE Nuclear Science Symposium Conference Record.

[8]  Christine Toumoulin,et al.  CT Metal Artifact Reduction Method Based on Improved Image Segmentation and Sinogram In-Painting , 2012 .

[9]  Lothar Spies,et al.  Metal artifact reduction in CT using tissue-class modeling and adaptive prefiltering. , 2006, Medical physics.

[10]  Yong-Min Huh,et al.  Overcoming artifacts from metallic orthopedic implants at high-field-strength MR imaging and multi-detector CT. , 2007, Radiographics : a review publication of the Radiological Society of North America, Inc.

[11]  Norbert J. Pelc,et al.  A comparison of four algorithms for metal artifact reduction in CT imaging , 2011, Medical Imaging.

[12]  Li Zhang,et al.  Application of X-ray CT to liquid security inspection: System analysis and beam hardening correction , 2007 .

[13]  D. Fleischmann,et al.  Evaluation of two iterative techniques for reducing metal artifacts in computed tomography. , 2011, Radiology.

[14]  Song Luo,et al.  Monoenergetic imaging of dual-energy CT reduces artifacts from implanted metal orthopedic devices in patients with factures. , 2011, Academic radiology.

[15]  M W Vannier,et al.  Fast iterative algorithm for metal artifact reduction in X-ray CT. , 2000, Academic radiology.

[16]  Rainer Raupach,et al.  Frequency split metal artifact reduction (FSMAR) in computed tomography. , 2012, Medical physics.

[17]  Patrick Dupont,et al.  Reduction of metal streak artifacts in X-ray computed tomography using a transmission maximum a posteriori algorithm , 1999 .

[18]  David Faul,et al.  Suppression of Metal Artifacts in CT Using a Reconstruction Procedure That Combines MAP and Projection Completion , 2009, IEEE Transactions on Medical Imaging.

[19]  L. Xing,et al.  Metal artifact reduction in x-ray computed tomography (CT) by constrained optimization. , 2011, Medical physics.

[20]  Eduardo Galiano Riveros The digital radiographic and computed tomography imaging of two types of explosive devices. , 2002 .

[21]  K. Kang Recent Developments and Applications of Radiation/Detection Technology in Tsinghua University , 2010 .

[22]  Joel G Fletcher,et al.  Metal artifact suppression from reformatted projections in multislice helical CT using dual-front active contours. , 2010, Medical physics.