Computed laminography and reconstruction algorithm

QUE Jie-Min; CAO Da-Quan; ZHAO Wei; TANG Xiao; SUN Cui-Li; WANG Yan-Fang; WEI Cun-Feng; SHI Rong-Jian; WEI Long; YU Zhong-Qiang; YAN Yong-Lian

doi:10.1088/1674-1137/36/8/017

Chinese Physics C> 2012, Vol. 36> Issue(8) : 777-783 DOI: 10.1088/1674-1137/36/8/017

Computed laminography and reconstruction algorithm

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Abstract：
Computed laminography (CL) is an alternative to computed tomography if large objects are to be inspected with high resolution. This is especially true for planar objects. In this paper, we set up a new scanning geometry for CL, and study the algebraic reconstruction technique (ART) for CL imaging. We compare the results of ART with variant weighted functions by computer simulation with a digital phantom. It proves that ART algorithm is a good choice for the CL system.

References

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Maisl M, Porsch F, Schorr C. Computed Laminography for X-ray Inspection of Light- weight Construction. 2nd International Symposium on NDT in Aerospace 2010-M0.3.A3[2] YANG Min，LU Hong-Nian，ZHANG Ya-Chong. Journal of Xi'an Jiaotong University, 2003, 37(3): 245-248 (in Chinese)[3] FU Jian, WANG Hong-Jun, LI Bin, JIANG Bai-Hong. Acta Electronica Sinica, 2010, 38(7): 1580-1584 (in Chinese)[4] FU Jian, JIANG Bai-Hong, LI Bin. Sci. China Tech. Sci., 2010, 53(8): 2261-2271 (in Chinese)[5] Mueller K, Yagel R, Wheller J J. IEEE Transactions on Medical Imaging, 1999, 18(6): 538-548[6] de Man B, Basu S. Phys. Med. Biol., 2004, 49: 2463-2475[7] Tuy H K. SIAM J Appl. Math., 1983, 43: 546-552[8] Guan H, Gordon R. Phys. Med. Biol., 1996, 41: 1727-1743[9] Sharp G C, Kandasamy N, Singh H, Folkert M. Phys. Med. Biol., 2007, 52: 5771-5783[10] XU Fang, Mueller K. IEEE Transactions on Nuclear Science, 2005, 52(3): 654-663

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QUE Jie-Min, CAO Da-Quan, ZHAO Wei, TANG Xiao, SUN Cui-Li, WANG Yan-Fang, WEI Cun-Feng, SHI Rong-Jian, WEI Long, YU Zhong-Qiang and YAN Yong-Lian. Computed laminography and reconstruction algorithm[J]. Chinese Physics C, 2012, 36(8): 777-783. doi: 10.1088/1674-1137/36/8/017

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Received: 2011-11-21
Revised: 2011-12-16

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沈阳化工大学材料科学与工程学院沈阳 110142

Computed laminography and reconstruction algorithm

Received Date: 2011-11-21
Accepted Date: 2011-12-16
Available Online: 2012-08-05

Abstract: Computed laminography (CL) is an alternative to computed tomography if large objects are to be inspected with high resolution. This is especially true for planar objects. In this paper, we set up a new scanning geometry for CL, and study the algebraic reconstruction technique (ART) for CL imaging. We compare the results of ART with variant weighted functions by computer simulation with a digital phantom. It proves that ART algorithm is a good choice for the CL system.