W. Clem Karl

Orcid: 0000-0002-8770-2886

Affiliations:
  • Boston University, Department of Electrical and Computer Engineering


According to our database1, W. Clem Karl authored at least 127 papers between 1991 and 2023.

Collaborative distances:

Awards

IEEE Fellow

IEEE Fellow 2014, "For contributions to statistical signal processing and image reconstruction".

Timeline

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PhD thesis 
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Bibliography

2023
The Foundations of Computational Imaging: A signal processing perspective.
IEEE Signal Process. Mag., July, 2023

2021
Autoregression and Structured Low-Rank Modeling of Sinogram Neighborhoods.
IEEE Trans. Computational Imaging, 2021

Data and Image Prior Integration for Image Reconstruction Using Consensus Equilibrium.
IEEE Trans. Computational Imaging, 2021

2020
Fast Enhanced CT Metal Artifact Reduction Using Data Domain Deep Learning.
IEEE Trans. Computational Imaging, 2020

2019
Fast Accurate CT Metal Artifact Reduction using Data Domain Deep Learning.
CoRR, 2019

Integrating Data and Image Domain Deep Learning for Limited Angle Tomography using Consensus Equilibrium.
Proceedings of the 2019 IEEE/CVF International Conference on Computer Vision Workshops, 2019

2018
Deep Learning-Based Sinogram Completion for Low-Dose CT.
Proceedings of the 13th IEEE Image, Video, and Multidimensional Signal Processing Workshop, 2018

Deep Learning Based Sinogram Correction for Metal Artifact Reduction.
Proceedings of the Computational Imaging XVI, Burlingame, 2018

2017
Fast and Robust Discrete Computational Imaging.
Proceedings of the Computational Imaging XV, Burlingame, 2017

2016
Variable splitting techniques for discrete tomography.
Proceedings of the 2016 IEEE International Conference on Image Processing, 2016

Enhancing Nuclear Resonance Fluorescence with Coded Aperture for Security Based Imaging.
Proceedings of the Computational Imaging XIV, San Francisco, 2016

2015
Graph-Cut Based Discrete-Valued Image Reconstruction.
IEEE Trans. Image Process., 2015

Learning-Based Object Identification and Segmentation Using Dual-Energy CT Images for Security.
IEEE Trans. Image Process., 2015

Dictionary-based sparse representation for resolution improvement in laser voltage imaging of CMOS integrated circuits.
Proceedings of the 2015 Design, Automation & Test in Europe Conference & Exhibition, 2015

2014
Interrupted SAR persistent surveillance via group sparse reconstruction of multipass data.
IEEE Trans. Aerosp. Electron. Syst., 2014

Sparsity-Driven Synthetic Aperture Radar Imaging: Reconstruction, autofocusing, moving targets, and compressed sensing.
IEEE Signal Process. Mag., 2014

Structure-preserving dual-energy CT for luggage screening.
Proceedings of the IEEE International Conference on Acoustics, 2014

Sensing-aware kernel SVM.
Proceedings of the IEEE International Conference on Acoustics, 2014

Joint metal artifact reduction and material discrimination in X-ray CT using a learning-based graph-cut method.
Proceedings of the Computational Imaging XII, 2014

2013
An Interferometric Reflectance Imaging Sensor for Point of Care Viral Diagnostics.
IEEE Trans. Biomed. Eng., 2013

Compressed Sensing of Monostatic and Multistatic SAR.
IEEE Geosci. Remote. Sens. Lett., 2013

An impossibility result for high dimensional supervised learning.
Proceedings of the 2013 IEEE Information Theory Workshop, 2013

Dictionary based image enhancement for integrated circuit imaging.
Proceedings of the IEEE International Conference on Acoustics, 2013

Exact optimization conditions for discrete linear inverse problems.
Proceedings of the IEEE Global Conference on Signal and Information Processing, 2013

Joint reconstruction and segmentation of electron tomography data.
Proceedings of the Computational Imaging XI, 2013

2012
Discrete image reconstruction for material quantification.
Proceedings of the IEEE Statistical Signal Processing Workshop, 2012

Sensing aware dimensionality reduction for nearest neighbor classification of high dimensional signals.
Proceedings of the IEEE Statistical Signal Processing Workshop, 2012

Automated 3-D intraocular ultrasound detection of elevated intracranial pressure.
Proceedings of the 9th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, 2012

Low-dose X-ray CT reconstruction based on joint sinogram smoothing and learned dictionary-based representation.
Proceedings of the 9th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, 2012

2011
Fast angiographic OCT imaging using sparse representations over learned dictionaries.
Proceedings of the 8th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, 2011

A novel hybrid algorithm for accelerating CT reconstructions and improving low-dose image quality.
Proceedings of the 8th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, 2011

Joint cardiac and respiratory motion correction and super-resolution reconstruction in coronary PET/CT.
Proceedings of the 8th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, 2011

A graph cut method for linear inverse problems.
Proceedings of the 18th IEEE International Conference on Image Processing, 2011

Sensing-aware classification with high-dimensional data.
Proceedings of the IEEE International Conference on Acoustics, 2011

A learning-based approach to explosives detection using Multi-Energy X-Ray Computed Tomography.
Proceedings of the IEEE International Conference on Acoustics, 2011

Classification-aware dimensionality reduction methods for explosives detection using multi-energy x-ray computed tomography.
Proceedings of the Computational Imaging IX, 2011

Sensing structure in learning-based binary classification of high-dimensional data.
Proceedings of the 49th Annual Allerton Conference on Communication, 2011

2010
A Spatio-Temporal Deconvolution Method to Improve Perfusion CT Quantification.
IEEE Trans. Medical Imaging, 2010

Imaging of Moving Targets With Multi-Static SAR Using an Overcomplete Dictionary.
IEEE J. Sel. Top. Signal Process., 2010

A variational approach for reconstructing low dose images in clinical helical CT.
Proceedings of the 2010 IEEE International Symposium on Biomedical Imaging: From Nano to Macro, 2010

2009
Spatio-Temporal Deconvolution of Perfusion CT Data in Rectal Tumor Patients.
Proceedings of the 2009 IEEE International Symposium on Biomedical Imaging: From Nano to Macro, Boston, MA, USA, June 28, 2009

Accurate Model-Based High Resolution Cardiac Image Reconstruction in Dual Source CT.
Proceedings of the 2009 IEEE International Symposium on Biomedical Imaging: From Nano to Macro, Boston, MA, USA, June 28, 2009

A Feasibility Study of Joint Respiratory and Cardiac Motion Correction for Coronary PET/CT Imaging.
Proceedings of the 2009 IEEE International Symposium on Biomedical Imaging: From Nano to Macro, Boston, MA, USA, June 28, 2009

2008
A Real-Time Algorithm for the Approximation of Level-Set-Based Curve Evolution.
IEEE Trans. Image Process., 2008

Unified Anomaly Suppression and Boundary Extraction in Laser Radar Range Imagery based on a Joint Curve-Evolution and Expectation-Maximization Algorithm.
IEEE Trans. Image Process., 2008

Analysis and mitigation of calcium artifacts in cardiac multidetector CT.
Proceedings of the 2008 IEEE International Symposium on Biomedical Imaging: From Nano to Macro, 2008

2007
Calcium De-blooming in Coronary CT Image.
Proceedings of the 7th IEEE International Conference on Bioinformatics and Bioengineering, 2007

2006
Line detection in images through regularized hough transform.
IEEE Trans. Image Process., 2006

Model-based variational smoothing and segmentation for diffusion tensor imaging in the brain.
Neuroinformatics, 2006

Shape and appearance modeling with feature distributions for image segmentation.
Proceedings of the 2006 IEEE International Symposium on Biomedical Imaging: From Nano to Macro, 2006

Sparsity-Driven Sparse-Aperture Ultrasound Imaging.
Proceedings of the 2006 IEEE International Conference on Acoustics Speech and Signal Processing, 2006

2005
High-resolution biosensor spectral peak shift estimation.
IEEE Trans. Signal Process., 2005

Coupled Shape Distribution-Based Segmentation of Multiple Objects.
Proceedings of the Information Processing in Medical Imaging, 2005

A Fast Level Set Method Without Solving PDEs.
Proceedings of the 2005 IEEE International Conference on Acoustics, 2005

Real-Time Tracking Using Level Sets.
Proceedings of the 2005 IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR 2005), 2005

2004
Multiple motion and occlusion segmentation with a multiphase level set method.
Proceedings of the Visual Communications and Image Processing 2004, 2004

Differentiable Minimin Shape Distance For Incorporating Topological Priors in Biomedical Imaging.
Proceedings of the 2004 IEEE International Symposium on Biomedical Imaging: From Nano to Macro, 2004

Level Set Methods for Dynamic Tomography.
Proceedings of the 2004 IEEE International Symposium on Biomedical Imaging: From Nano to Macro, 2004

Shape reconstruction from unorganized points with a data-driven level set method.
Proceedings of the 2004 IEEE International Conference on Acoustics, 2004

Performance guarantees in sensor networks.
Proceedings of the 2004 IEEE International Conference on Acoustics, 2004

Using shape distributions as priors in a curve evolution framework.
Proceedings of the 2004 IEEE International Conference on Acoustics, 2004

2003
A curve evolution approach to object-based tomographic reconstruction.
IEEE Trans. Image Process., 2003

Curve evolution methods for dynamic tomography with unknown dynamic models.
Proceedings of the Medical Imaging 2003: Image Processing, 2003

Tomographic reconstruction of dynamic objects.
Proceedings of the Computational Imaging, Santa Clara, 2003

2002
Functional MRI Activity Characterization Using Response Time Shift Estimates from Curve Evolution.
IEEE Trans. Medical Imaging, 2002

Diffusion tensor model based smoothing.
Proceedings of the 2002 IEEE International Symposium on Biomedical Imaging, 2002

Shared-boundary fusion for estimation of noisy multi-modality atherosclerotic plaque imagery.
Proceedings of the 2002 International Conference on Image Processing, 2002

Dynamic tomography using curve evolution with spatial-temporal regularization.
Proceedings of the 2002 International Conference on Image Processing, 2002

Image segmentation utilizing wavelet-based spatially adaptive kernels.
Proceedings of the 2002 International Conference on Image Processing, 2002

Edge-preserving image reconstruction for coherent imaging applications.
Proceedings of the 2002 International Conference on Image Processing, 2002

Dynamic tomography with curve evolution methods.
Proceedings of the IEEE International Conference on Acoustics, 2002

Image segmentation based on prior probabilistic shape models.
Proceedings of the IEEE International Conference on Acoustics, 2002

2001
An efficient region of interest acquisition method for dynamic magnetic resonance imaging.
IEEE Trans. Image Process., 2001

Feature-enhanced synthetic aperture radar image formation based on nonquadratic regularization.
IEEE Trans. Image Process., 2001

A Curve Evolution Approach for Image Segmentation Using Adaptive Flows.
Proceedings of the Eighth International Conference On Computer Vision (ICCV-01), Vancouver, British Columbia, Canada, July 7-14, 2001, 2001

2000
ML parameter estimation of a multiscale stochastic process using the EM algorithm.
IEEE Trans. Signal Process., 2000

A New Model-Based Technique for Enhanced Small-Vessel Measurements in X-ray Ciné-Angiograms.
IEEE Trans. Medical Imaging, 2000

Multiscale methods for the segmentation and reconstruction of signals and images.
IEEE Trans. Image Process., 2000

A Region-Based Alternative for Edge-Preserving Smoothing.
Proceedings of the 2000 International Conference on Image Processing, 2000

A Method for Choosing the Regularization Parameter in Generalized Tikhonov Regularized Linear Inverse Problems.
Proceedings of the 2000 International Conference on Image Processing, 2000

Object-Based Reconstruction Using Coupled Tomographic Flows.
Proceedings of the 2000 International Conference on Image Processing, 2000

A Statistical Approach to Rough Surface Underground Imaging.
Proceedings of the 2000 International Conference on Image Processing, 2000

A Variational Energy Approach for Estimating Vascular Structure and Deformation from B-mode Ultrasound Imagery.
Proceedings of the 2000 International Conference on Image Processing, 2000

Superresolution and Edge-Preserving Reconstruction of Complex-Valued Synthetic Aperture Radar Images.
Proceedings of the 2000 International Conference on Image Processing, 2000

Enhanced, high resolution radar imaging based on robust regularization.
Proceedings of the IEEE International Conference on Acoustics, 2000

Tomographic Reconstruction Using Curve Evolution.
Proceedings of the 2000 Conference on Computer Vision and Pattern Recognition (CVPR 2000), 2000

1999
Silhouette recognition using high-resolution pursuit.
Pattern Recognit., 1999

1998
A multiscale hypothesis testing approach to anomaly detection and localization from noisy tomographic data.
IEEE Trans. Image Process., 1998

Efficient Multiresolution Counterparts to Variational Methods for Surface Reconstruction.
Comput. Vis. Image Underst., 1998

MRF-based Algorithms for Segmentation of SAR Images.
Proceedings of the 1998 IEEE International Conference on Image Processing, 1998

Detection and Localization of Obscured Objects from Near-Field Sensor Array Data: Physical Models and Statistical Processing.
Proceedings of the 1998 IEEE International Conference on Image Processing, 1998

A Nested Recursive Approach to MAP Estimation based on Gauss-Markov Random Fields.
Proceedings of the 1998 IEEE International Conference on Image Processing, 1998

A Nonparametric Defocus-based Approach to Reconstructing Thin 3D Structures in Optical Sectioning Microscopy.
Proceedings of the 1998 IEEE International Conference on Image Processing, 1998

A Statistical Method for Discrimination of Natural Terrain Types from SAR Data.
Proceedings of the 1998 IEEE International Conference on Image Processing, 1998

A new multiresolution algorithm for image segmentation.
Proceedings of the 1998 IEEE International Conference on Acoustics, 1998

1997
Multiscale segmentation and anomaly enhancement of SAR imagery.
IEEE Trans. Image Process., 1997

Tomographic reconstruction and estimation based on multiscale natural-pixel bases.
IEEE Trans. Image Process., 1997

A Statistical Method for Efficient Segmentation of MR Imagery.
Int. J. Pattern Recognit. Artif. Intell., 1997

Bayesian Restoration of Noisy Images with the EM Algorithm.
Proceedings of the Proceedings 1997 International Conference on Image Processing, 1997

A Recursive Estimation Approach to the Segmentation of MR Imagery.
Proceedings of the Proceedings 1997 International Conference on Image Processing, 1997

Quality enhancement of arterial measurements based on a more accurate stochastic model of X-ray cine-angiography.
Proceedings of the Proceedings 1997 International Conference on Image Processing, 1997

A Statistical Tomographic Approach to Synthetic Aperture Radar Image Reconstruction.
Proceedings of the Proceedings 1997 International Conference on Image Processing, 1997

1996
A wavelet-based method for multiscale tomographic reconstruction.
IEEE Trans. Medical Imaging, 1996

A moment-based variational approach to tomographic reconstruction.
IEEE Trans. Image Process., 1996

Local tests for consistency of support hyperplane data.
J. Math. Imaging Vis., 1996

Tomographic Reconstruction of Polygons from Knot Location and Chord Length Measurements.
CVGIP Graph. Model. Image Process., 1996

Multiscale hypothesis testing with application to anomaly characterization from tomographic projections.
Proceedings of the Proceedings 1996 International Conference on Image Processing, 1996

Multiscale segmentation and anomaly enhancement of SAR imagery.
Proceedings of the Proceedings 1996 International Conference on Image Processing, 1996

Multiscale methods for the segmentation of images.
Proceedings of the 1996 IEEE International Conference on Acoustics, 1996

1995
Reconstructing polygons from moments with connections to array processing.
IEEE Trans. Signal Process., 1995

Estimation of dynamically evolving ellipsoids with applications to medical imaging.
IEEE Trans. Medical Imaging, 1995

Multiresolution optimal interpolation and statistical analysis of TOPEX/POSEIDON satellite altimetry.
IEEE Trans. Geosci. Remote. Sens., 1995

A distributed and iterative method for square root filtering in space-time estimation.
Autom., 1995

Multiscale geometrical feature extraction and object recognition with wavelets and morphology.
Proceedings of the Proceedings 1995 International Conference on Image Processing, 1995

Multiresolution statistical analysis and assimilation of large ocean data sets.
Proceedings of the 1995 International Conference on Acoustics, 1995

1994
Efficient multiscale regularization with applications to the computation of optical flow.
IEEE Trans. Image Process., 1994

Probabilistic and sequential computation of optical flow using temporal coherence.
IEEE Trans. Image Process., 1994

Control of vibrational systems.
IEEE Trans. Autom. Control., 1994

Reconstructing Binary Polygonal Objects from Projections: A Statistical View.
CVGIP Graph. Model. Image Process., 1994

Reconstructing Ellipsoids from Projections.
CVGIP Graph. Model. Image Process., 1994

Moment-Based Geometric Image Reconstruction.
Proceedings of the Proceedings 1994 International Conference on Image Processing, 1994

Multiresolution Stochastic Imaging of Satellite Oceanographic Altimetric Data.
Proceedings of the Proceedings 1994 International Conference on Image Processing, 1994

Wavelet-Based Multiscale Stochastic Models for Efficient Tomographic Discrimination of Fractal Fields.
Proceedings of the Proceedings 1994 International Conference on Image Processing, 1994

1993
Multiscale representations of Markov random fields.
IEEE Trans. Signal Process., 1993

A sufficient condition for the stability of interval matrix polynomials.
IEEE Trans. Autom. Control., 1993

1992
Sequential filtering for multi-frame visual reconstruction.
Signal Process., 1992

1991
Reconstructing objects from projections.
PhD thesis, 1991


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