A Sparse Nonnegative Demixing Algorithm with Intrinsic Regularization for Multiplexed Fluorescence Tomography

Pera, Vivian ;   Brooks, Dana ;   Niedre, Mark

Tags Fluorescence tomographyInverse methodsSmall animals

Fluorescence molecular tomography is becoming an important tool in preclinical biomedical imaging of small animals. However, the inability to...

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A Statistical Approach to Incorporate Multiple ECG or EEG Recordings with Artifactual Variability into Inverse Solutions

Coll-Font, Jaume ;   Erem, Burak ;   Stovicek, Petr ;   Brooks, Dana

Tags Electrophysical imagingInverse methodsHeart

Inverse methods for localization and characterization of cardiac and brain sources from ECG and EEG signals are notoriously ill-conditioned...

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High Resolution T1 Estimation from Multiple Low Resolution Magnetic Resonance Images

Van Steenkiste, Gwendolyn ;   Poot, Dirk H.J. ;   Jeurissen, Ben ;   den Dekker, Arnold J. ;   Sijbers, Jan

Tags Quantification and estimationImage reconstruction - analytical & iterative methodsMagnetic resonance imaging (MRI)

Quantitative T1 mapping is a magnetic resonance imaging technique in which the spin-lattice relaxation time of tissues is estimated. Even though...

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Joint Direction and Volume Tomographical Ab-Initio Reconstruction for Electron Microscopy

Ben Cheikh, Bacem ;   Baudrier, Etienne ;   Frey, Gabriel

Tags Image reconstruction - analytical & iterative methodsSingle cell & molecule detectionMicroscopy - electron

This paper deals with the problem of the three-dimensional volume reconstruction from two-dimensional projections with unknown orientations....

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Joint Sparsity Recovery Method for the EIT Problem to Reconstruct Anomalies

Lee, Ok Kyun ;   Kang, Hyeonbae ;   Lim, Mikyoung ;   Ye, Jong Chul

Tags Electrical impedance tomographyCompressive sensing & samplingImage reconstruction - analytical & iterative methods

This paper considers an electrical impedance tomography(EIT) problem to reconstruct multiple small anomalies from boundary measurements. The...

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Nonnegative Matrix Factorization for Tissue Mixture Modeling with Noisy MR Magnitude Image Sequences

Kim, Daeun ;   Haldar, Justin

Tags Image reconstruction - analytical & iterative methodsBlind source separation & Dictionary learningMagnetic resonance imaging (MRI)

Nonnegative matrix factorization (NMF) is a powerful blind source separation method that can be used for nonparametric partial volume...

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Orthogonal Matrix Retrieval in Cryo-Electron Microscopy

Bhamre, Tejal ;   Zhang, Teng ;   Singer, Amit

Tags Optimization methodDimensionality reductionInverse methods

In single particle reconstruction (SPR) from cryo-electron microscopy (EM), the 3D structure of a molecule needs to be determined from its...

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Upsampling Dynamic Contrast Enhanced MRI

Jafari-Khouzani, Kourosh ;   Gerstner, Elizabeth ;   Rosen, Bruce ;   Kalpathy-Cramer, Jayashree

Tags Image reconstruction - analytical & iterative methodsMagnetic resonance imaging (MRI)Brain

Dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) is used to evaluate the vasculature properties of tissues. The resolution of...

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