We propose a regularization-based image restoration scheme for 2D images recorded over time (2D+t). We design an infimal convolution-based regularization function which we call spatio-temporal Adaptive Infimal Convolution (STAIC) regularization. We formulate the infimal convolution in the form of an additive decomposition of the 2D+t image such that the extent of spatial and temporal smoothing is controlled in a spatially and temporally varying manner. This makes the regularization adaptable to the local characteristics of the motion leading to an improved ability to handle noise. We also develop a minimization method for image reconstruction by using the proposed form of regularization. We demonstrate the effectiveness of the proposed regularization using TIRF images recorded over time and compare with some selected existing regularizations.
Spatiotemporal implicit neural representation for unsupervised dynamic MRI reconstruction
School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China(上海交通大学生物医学工程学院);School of Information Science and Technology, ShanghaiTech University, Shanghai, China(上海科技大学信息科学与技术学院);iHuman Institute, Shanghaitech University, Shanghai, China(上海科技大学iHuman研究所)
Self-Supervised k-Space Regularization for Motion-Resolved Abdominal MRI Using Neural Implicit k-Space Representation
Helmholtz Center Munich(慕尼黑亥姆霍兹中心);Technical University of Munich(慕尼黑工业大学);Imperial College London(伦敦帝国学院);Millenium Institute for Intelligent Healthcare Engineering(千禧智能医疗工程研究所);Pontificia Universidad Católica de Chile(智利天主教大学);King’s College London(伦敦国王学院)
Spatio-Temporal Deep Learning-Based Undersampling Artefact Reduction for 2D Radial Cine MRI with Limited Data
Charité - Universitätsmedizin Berlin(柏林夏里特医学院);Berlin Institute of Health(柏林健康研究所);Physikalisch-Technische Bundesanstalt (PTB)(德国联邦物理技术研究院(PTB));King’s College London(伦敦国王学院)
Time-Domain Linear Model-based Framework for Passive Acoustic Mapping of Cavitation Activity
Université de Lyon(里昂大学);Université de Toulouse(图卢兹大学);Université Claude Bernard Lyon 1(里昂第一大学);IRIT(IRIT研究所);CNRS(法国国家科学研究中心);Inserm(法国国家医学研究院);CREATIS UMR5220;LabTau
DeStripe: A Self2Self Spatio-Spectral Graph Neural Network with Unfolded Hessian for Stripe Artifact Removal in Light-sheet Microscopy
Technical University of Munich(慕尼黑工业大学);Georg-August-University Goettingen(哥廷根大学);Johns Hopkins University(约翰斯·霍普金斯大学);Institute of AI for Health, Helmholtz Munich - German Research Center for Environmental Health(亥姆霍兹慕尼黑中心-德国环境健康研究中心健康人工智能研究所);Helmholtz AI, Helmholtz Munich - German Research Center for Environmental Health(亥姆霍兹慕尼黑中心-德国环境健康研究中心亥姆霍兹人工智能)
PISCO: Self-Supervised k-Space Regularization for Improved Neural Implicit k-Space Representations of Dynamic MRI
Helmholtz Munich(亥姆霍兹慕尼黑中心);Technical University of Munich(慕尼黑工业大学);Klinikum rechts der Isar(右岸医院(慕尼黑工业大学附属));Imperial College London(帝国理工学院);Pontificia Universidad Católica de Chile(智利天主教大学);King’s College London(伦敦国王学院)