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A NONLOCAL KRONECKER-BASIS-REPRESENTATION METHOD FOR LOW-DOSE CT SINOGRAM RECOVERY
《Journal of Computational Mathematics》2024年第4期1080-1108,共29页Jian Lu Huaxuan Hu Yuru Zou Zhaosong Lu Xiaoxia Liu Keke Zu Lin Li 
supported by the National Natural Science Foundation of China(Grant Nos.U21A20455,61972265,11871348);by the Natural Science Foundation of Guangdong Province of China(Grant No.2020B1515310008);by the Department of Education of Guangdong Province of China(Grant No.2019KZDZX1007);by the PolyU internal Grant No.P0040271;by the Pazhou Laboratory,Guangzhou,China(Grant No.PZL2021KF0017);by the Guangdong Key Laboratory of Intelligent Information Processing,China.
Low-dose computed tomography(LDCT)contains the mixed noise of Poisson and Gaus-sian,which makes the image reconstruction a challenging task.In order to describe the statistical characteristics of the mixed noise,we ad...
关键词：Low-dose computed tomography Kronecker-basis-representation Low-rank imation.Noise-generating-mechanism 
FINITE ELEMENT EXTERIOR CALCULUS FOR EVOLUTION PROBLEMS
《Journal of Computational Mathematics》2017年第2期187-212,共26页Andrew Gillette Michael Hoist Yunrong Zhu 
Arnold, Falk, and Winther [Bull. Amer. Math. Soc. 47 （2010）, 281-354] showed that mixed variational problems, and their numerical approximation by mixed methods, could be most completely understood using the ideas a...
关键词：FEEC Elliptic equations Evolution equations Nonlinear equations Approx-imation theory Nonlinear approximation Inf-sup conditions A priori estimates. 
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