- Zhou Pengwu
Zhou Pengwu
1. College of Mechanical and Vehicle Engineering, Chongqing University,2. Engineering Research Center of Industrial Computed Tomography Nondestructive Testing, Ministry of Education,Chongqing University
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Search for this author on this site - Xi Yarui
Xi Yarui
2. Engineering Research Center of Industrial Computed Tomography Nondestructive Testing, Ministry of Education, Chongqing University，3. Key Laboratory of Optoelectronic Technology and Systems,Ministry of Education, Chongqing University
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Search for this author on this site - Zhu Guorong
Zhu Guorong
2. Engineering Research Center of Industrial Computed Tomography Nondestructive Testing, Ministry of Education, Chongqing University，3. Key Laboratory of Optoelectronic Technology and Systems,Ministry of Education, Chongqing University
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Search for this author on this site - Yuan Wei
Yuan Wei
2. Engineering Research Center of Industrial Computed Tomography Nondestructive Testing, Ministry of Education, Chongqing University，3. Key Laboratory of Optoelectronic Technology and Systems,Ministry of Education, Chongqing University
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Search for this author on this site - Liu Fenglin
Liu Fenglin
1. College of Mechanical and Vehicle Engineering, Chongqing University, Chongqing 400044, China; 2. Engineering Research Center of Industrial Computed Tomography Nondestructive Testing, Ministry of Education, Chongqing University，3. Key Laboratory of Optoelectronic Technology and Systems,Ministry of Education, Chongqing University
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For the imaging of plate-like objects, the computed laminography ( CL) technology has been widely used because of its nondestructive and intuitive characteristics. CL imaging methods are mainly divided into linear scanning and circular scanning. Linear scanning has high efficiency, and circular scanning has good data uniformity. However, due to the incomplete projection data of both methods, there are problems of sliced image aliasing and unclear image edge. In this article, a hybrid scanning CL (HyCL) imaging method is proposed, which consists of linear scanning and circular scanning. The geometric model is formulated, the simulation and imaging experiments are implemented by using SIRT image reconstruction algorithm, the imaging effect and in-slice aliasing is analyzed. Compared with parallel translation computed laminography ( PTCL), orthogonal translation computed laminography ( OTCL) and rotational computed laminography (RCL), results show that HyCL can effectively reduce aliasing artifacts and protect details. The image contour can be retained clearly and evenly, and the contrast is better.
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- Online: July 04,2023
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