Dual spectral limited-angle CT imaging regularized by edge-preserving diffusion and smoothing

Qin，Yanwei1,2; Zhang，Yinghui1,2; Lu，Xin1,2; Zhao，Yunsong1,2,3; Zhao，Xing1,2,3

2023

10.3233/XST-221302

Journal of X-ray science and technology   影响因子和分区

0895-3996

1095-9114

Limited-angle CT scan is an effective way for nondestructive inspection of planar objects, and various methods have been proposed accordingly. When the scanned object contains high-absorption material, such as metal, existing methods may fail due to the beam hardening of X-rays. In order to overcome this problem, we adopt a dual spectral limited-angle CT scan and propose a corresponding image reconstruction algorithm, which takes the polychromatic property of the X-ray into consideration, makes basis material images free of beam hardening artifacts and metal artifacts, and then helps depress the limited-angle artifacts. Experimental results on both simulated PCB data and real data demonstrate the effectiveness of the proposed algorithm.

dual spectral limited-angle CT imaging Planar objects the high-absorption material

SCI

英语

其他

National Natural Science Foundation of China["62271330","61971292","61871275","61827809","61771324"] ; National Key Research and Development Program of China[2020YFA0712200] ; Major Technologies R&D Program of Shenzhen[JSGGZD20220822095600001]

Instruments & Instrumentation ; Optics ; Physics

Instruments & Instrumentation ; Optics ; Physics, Applied

WOS:000987290400009

IOS PRESS

2-s2.0-85159733278

Scopus

1.School of Mathematical Sciences,Capital Normal University,China
2.Beijing Advanced Innovation Center for Imaging Technology,Capital Normal University,China
3.Shenzhen National Applied Mathematics Center,Southern University of Science and Technology,Shenzhen,China

Qin，Yanwei,Zhang，Yinghui,Lu，Xin,et al. Dual spectral limited-angle CT imaging regularized by edge-preserving diffusion and smoothing[J]. Journal of X-ray science and technology,2023,31(3):573-592.

Qin，Yanwei,Zhang，Yinghui,Lu，Xin,Zhao，Yunsong,&Zhao，Xing.(2023).Dual spectral limited-angle CT imaging regularized by edge-preserving diffusion and smoothing.Journal of X-ray science and technology,31(3),573-592.

Qin，Yanwei,et al."Dual spectral limited-angle CT imaging regularized by edge-preserving diffusion and smoothing".Journal of X-ray science and technology 31.3(2023):573-592.