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Spatiotemporal imaging with diffeomorphic optimal transportation 期刊论文
Inverse Problems, 2021, 卷号: 37, 期号: 11
Authors:  Chen,Chong
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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:12/0  |  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:15/0  |  Submit date:2022/04/02
high-energy X-ray radiography  cone-beam global reconstruction  inverse problem  total variation  alternating proximal gradient method  
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:52/0  |  Submit date:2020/03/10
inverse problems  image reconstruction  large deformations  metamorphosis  
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
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spatiotemporal imaging  image reconstruction  motion estimation  joint variational model  shape theory  large diffeomorphic deformations  
A new accelerated alternating minimization method for analysis sparse recovery 期刊论文
SIGNAL PROCESSING, 2018, 卷号: 145, 页码: 167-174
Authors:  Xie, Jiaxin;  Liao, Anping;  Lei, Yuan
Favorite  |  View/Download:54/0  |  Submit date:2018/07/30
Compressed sensing  Moreau proximal smoothing  Accelerated alternating minimization  Sparse recovery  Total variation  
Indirect Image Registration with Large Diffeomorphic Deformations 期刊论文
SIAM JOURNAL ON IMAGING SCIENCES, 2018, 卷号: 11, 期号: 1, 页码: 575-617
Authors:  Chen, Chong;  Oktem, Ozan
Favorite  |  View/Download:46/0  |  Submit date:2018/07/30
indirect image registration  shape theory  large deformations  diffeomorphisms  shape regularization  image reconstruction  tomography  
CP-P Stokes finite element pair on sub-hexahedron tetrahedral grids 期刊论文
CALCOLO, 2017, 卷号: 54, 期号: 4, 页码: 1403-1417
Authors:  Zhang, Shangyou;  Zhang, Shuo
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Stokes problem  Mixed finite element  Continuous quadratic velocity  Discontinuous pressure  Hexahedral grid  Tetrahedral grid  
Shape-based image reconstruction using linearized deformations 期刊论文
Inverse Problems, 2017, 卷号: 33, 期号: 3
Authors:  ?ktem,Ozan;  Chen,Chong;  Onur Domani?,Nevzat;  Ravikumar,Pradeep;  Bajaj,Chandrajit
Favorite  |  View/Download:30/0  |  Submit date:2018/07/30
tomography  image reconstruction  indirect image matching  computational anatomy  shape analysis  inverse problems  
Efficient Fisher Discrimination Dictionary Learning 期刊论文
SIGNAL PROCESSING, 2016, 卷号: 128, 页码: 28-39
Authors:  Jiang, Rui;  Qiao, Hong;  Zhang, Bo
Favorite  |  View/Download:48/0  |  Submit date:2018/07/30
Fisher discrimination dictionary learning  Nesterov's accelerated gradient method  Face recognition  Domain adaptation