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Subdivision based isogeometric analysis for geometric flows 期刊论文
INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING, 2021, 页码: 24
Authors:  Pan, Qing;  Rabczuk, Timon;  Chen, Chong
Favorite  |  View/Download:30/0  |  Submit date:2022/04/02
extended Loop subdivision  geometric flows  isogeometric analysis  
Spatiotemporal imaging with diffeomorphic optimal transportation 期刊论文
Inverse Problems, 2021, 卷号: 37, 期号: 11
Authors:  Chen,Chong
Favorite  |  View/Download:21/0  |  Submit date:2022/04/02
spatiotemporal imaging  di?eomorphic optimal transportation  mass-preserving deformation  
An efficient algorithm to compute the X-ray transform 期刊论文
INTERNATIONAL JOURNAL OF COMPUTER MATHEMATICS, 2021, 页码: 19
Authors:  Chen, Chong;  Wang, Runqian;  Bajaj, Chandrajit;  Oktem, Ozan
Favorite  |  View/Download:27/0  |  Submit date:2022/04/02
X-ray transform  intersection length  projection matrix  non-vanishing intersectability  ambiguity and flexibility  tomographic image reconstruction  
Hybrid Regularized Cone-Beam Reconstruction for Axially Symmetric Object Tomography 期刊论文
ACTA MATHEMATICA SCIENTIA, 2021, 页码: 17
Authors:  Li, Xinge;  Wei, Suhua;  Xu, Haibo;  Chen, Chong
Favorite  |  View/Download:30/0  |  Submit date:2022/04/02
high-energy X-ray radiography  cone-beam global reconstruction  inverse problem  total variation  alternating proximal gradient method  
Gevrey genericity of Arnold diffusion in a priori unstable Hamiltonian systems 期刊论文
Nonlinearity, 2021, 卷号: 34, 期号: 1
Authors:  Chen,Qinbo;  Cheng,Chong-Qing
Favorite  |  View/Download:44/0  |  Submit date:2021/04/26
Arnold diffusion  genericity  Gevrey functions  a priori unstable  primary 37J40  37J50  
Image reconstruction through metamorphosis 期刊论文
Inverse Problems, 2020, 卷号: 36, 期号: 2
Authors:  Gris,Barbara;  Chen,Chong;  ?ktem,Ozan
Favorite  |  View/Download:62/0  |  Submit date:2020/03/10
inverse problems  image reconstruction  large deformations  metamorphosis  
Isogeometric analysis for surface PDEs with extended Loop subdivision 期刊论文
JOURNAL OF COMPUTATIONAL PHYSICS, 2019, 卷号: 398, 页码: 22
Authors:  Pan, Qing;  Rabczuk, Timon;  Xu, Gang;  Chen, Chong
Favorite  |  View/Download:85/0  |  Submit date:2020/01/10
Isogeometric analysis  Extended Loop subdivision  Surface PDEs  
A New Variational Model for Joint Image Reconstruction and Motion Estimation in Spatiotemporal Imaging 期刊论文
SIAM JOURNAL ON IMAGING SCIENCES, 2019, 卷号: 12, 期号: 4, 页码: 1686-1719
Authors:  Chen, Chong;  Gris, Barbara;  Oktem, Ozan
Favorite  |  View/Download:58/0  |  Submit date:2020/09/23
spatiotemporal imaging  image reconstruction  motion estimation  joint variational model  shape theory  large diffeomorphic deformations  
Isogeometric analysis of minimal surfaces on the basis of extended Catmull-Clark subdivision 期刊论文
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING, 2018, 卷号: 337, 页码: 128-149
Authors:  Pan, Qing;  Rabczuk, Timon;  Chen, Chong;  Xu, Guoliang;  Pan, Kejia
Favorite  |  View/Download:70/0  |  Submit date:2018/07/30
Isogeometric analysis  Extended Catmull-Clark subdivision  Error estimation  Minimal surfaces  
A GENERAL TWO-LEVEL SUBSPACE METHOD FOR NONLINEAR OPTIMIZATION 期刊论文
JOURNAL OF COMPUTATIONAL MATHEMATICS, 2018, 卷号: 36, 期号: 6, 页码: 881-902
Authors:  Chen, Chong;  Wen, Zaiwen;  Yuan, Yaxiang
Favorite  |  View/Download:73/0  |  Submit date:2019/03/05
Nonlinear optimization  Convex and nonconvex problems  Subspace technique  Multigrid/multilevel method  Large-scale problems