Dr. Ken D. Sauer Profile

Dr. Ken D. Sauer

Associate Professor/Dir. of Undergraduate Studies at Univ of Notre Dame

SPIE Involvement:

Author | Editor

Publications (23)

Proceedings Article | 18 October 2022 Open Access

Design of novel loss functions for deep learning in x-ray CT

Obaidullah Rahman, Ken Sauer, Madhuri Nagare, Charles Bouman, Roman Melnyk, Jie Tang, Brian Nett

Proceedings Volume 12304, 123042S (2022) https://doi.org/10.1117/12.2646473

KEYWORDS: Signal attenuation, X-ray computed tomography, Error analysis, X-rays, Linear filtering, Spatial frequencies, Image quality, Electronic filtering, Data modeling, X-ray imaging

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Proceedings Article | 15 February 2021 Poster + Presentation + Paper

Statistically adaptive filtering for low signal correction in x-ray computed tomography

Obaidullah Rahman, Ken Sauer, Charles Bouman, Roman Melnyk, Brian Nett

Proceedings Volume 11595, 115952D (2021) https://doi.org/10.1117/12.2581032

KEYWORDS: X-ray computed tomography, Electronic filtering, Digital filtering, Signal to noise ratio, X-rays, Photons, X-ray imaging, Signal detection, Sensors, Modulation transfer functions

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Proceedings Article | 9 March 2017 Paper

ROI reconstruction for model-based iterative reconstruction (MBIR) via a coupled dictionary learning

Dong Hye Ye, Somesh Srivastava, Jean-Baptiste Thibault, Ken Sauer, Charles Bouman

Proceedings Volume 10132, 101322R (2017) https://doi.org/10.1117/12.2248087

KEYWORDS: Image enhancement, Image processing, Resolution enhancement technologies, Medical imaging, Super resolution, Reconstruction algorithms, Computed tomography, Image quality, Image resolution, Diagnostics, Image restoration

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Proceedings Article | 7 March 2014 Paper

Statistical x-ray computed tomography imaging from photon-starved measurements

Zhiqian Chang, Ruoqiao Zhang, Jean-Baptiste Thibault, Ken Sauer, Charles Bouman

Proceedings Volume 9020, 90200G (2014) https://doi.org/10.1117/12.2048204

KEYWORDS: Bayesian inference, Photon counting, Denoising, Signal to noise ratio, Sensors, Signal attenuation, X-ray computed tomography, Reconstruction algorithms, X-rays, Image quality

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Proceedings Article | 19 February 2013 Paper

Statistical modeling challenges in model-based reconstruction for x-ray CT

Ruoqiao Zhang, Aaron Chang, Jean-Baptiste Thibault, Ken Sauer, Charles Bouman

Proceedings Volume 8657, 86570S (2013) https://doi.org/10.1117/12.2013231

KEYWORDS: Statistical analysis, X-rays, Data modeling, Photon counting, Model-based design, Statistical modeling, Data acquisition, X-ray computed tomography, X-ray imaging, Diagnostics

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Proceedings Article | 24 February 2012 Paper

Prediction coefficient estimation in Markov random fields for iterative x-ray CT reconstruction

Jiao Wang, Ken Sauer, Jean-Baptiste Thibault, Zhou Yu, Charles Bouman

Proceedings Volume 8314, 831444 (2012) https://doi.org/10.1117/12.912425

KEYWORDS: Magnetorheological finishing, Bone, Statistical analysis, Spatial frequencies, Image quality, Head, X-rays, CT reconstruction, Image filtering, Tissues

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Proceedings Article | 8 February 2011 Paper

Medical image enhancement using resolution synthesis

Tak-Shing Wong, Charles Bouman, Jean-Baptiste Thibault, Ken Sauer

Proceedings Volume 7873, 787307 (2011) https://doi.org/10.1117/12.882878

KEYWORDS: Remote sensing, Image quality, Image processing, Image enhancement, Image filtering, Expectation maximization algorithms, Image resolution, Medical imaging, Resolution enhancement technologies, Image classification

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Proceedings Article | 8 February 2011 Paper

Kinetic parameter reconstruction for motion compensation in transmission tomography

Zhou Yu, Jean-Baptiste Thibault, Jiao Wang, Charles Bouman, Ken Sauer

Proceedings Volume 7873, 78730T (2011) https://doi.org/10.1117/12.887843

KEYWORDS: Reconstruction algorithms, Motion models, Data modeling, Algorithm development, CT reconstruction, Image quality, Tomography, Data acquisition, Image analysis, Computed tomography

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Proceedings Article | 26 February 2008 Paper

Non-homogeneous ICD optimization for targeted reconstruction of volumetric CT

Zhou Yu, Jean-Baptiste Thibault, Charles Bouman, Ken Sauer, Jiang Hsieh

Proceedings Volume 6814, 681404 (2008) https://doi.org/10.1117/12.777140

KEYWORDS: Reconstruction algorithms, Image quality, Detection and tracking algorithms, Image resolution, Medical imaging, Sensors, CT reconstruction, Quality measurement, Electrical engineering, Target detection

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Proceedings Article | 7 March 2007 Paper

Non-homogeneous updates for the iterative coordinate descent algorithm

Zhou Yu, Jean-Baptiste Thibault, Charles Bouman, Ken Sauer, Jiang Hsieh

Proceedings Volume 6498, 64981B (2007) https://doi.org/10.1117/12.716796

KEYWORDS: Reconstruction algorithms, Image quality, Expectation maximization algorithms, X-ray computed tomography, Sensors, 3D modeling, Data modeling, Detector arrays, Detection and tracking algorithms, 3D image reconstruction

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Proceedings Article | 2 February 2006 Paper

A recursive filter for noise reduction in statistical iterative tomographic imaging

Jean-Baptiste Thibault, Charles Bouman, Ken Sauer, Jiang Hsieh

Proceedings Volume 6065, 60650X (2006) https://doi.org/10.1117/12.660281

KEYWORDS: Sensors, Data modeling, Digital filtering, Signal attenuation, Photons, X-rays, Infrared imaging, Statistical modeling, Statistical analysis, Tomography

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Proceedings Article | 29 April 2005 Paper

Reconstruction of kinetic parameter images directly from dynamic PET sinograms

Mustafa Kamasak, Charles Bouman, Evan Morris, Ken Sauer

Proceedings Volume 5747, (2005) https://doi.org/10.1117/12.595787

KEYWORDS: Reconstruction algorithms, Positron emission tomography, Expectation maximization algorithms, Image restoration, Tissues, Image segmentation, Signal to noise ratio, Optimization (mathematics), Blood, Transform theory

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Proceedings Article | 11 March 2005 Paper

Parametric reconstruction of kinetic PET data with plasma function estimation

Mustafa Kamasak, Charles Bouman, Evan Morris, Ken Sauer

Proceedings Volume 5674, (2005) https://doi.org/10.1117/12.597630

KEYWORDS: Plasma, Reconstruction algorithms, Positron emission tomography, Blood, Tissues, Optimization (mathematics), Tomography, Transform theory, Model-based design, Data modeling

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Proceedings Article | 1 July 2003 Paper

Bayesian estimation for rheological MRI

Fabien Feron, Ken Sauer

Proceedings Volume 5016, (2003) https://doi.org/10.1117/12.479703

KEYWORDS: Magnetic resonance imaging, Foam, 3D image processing, 3D modeling, 3D image reconstruction, Image analysis, Image restoration, Biological research, Fluid dynamics, Image segmentation

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SPIE Journal Paper | 1 July 2000

Newton-style optimization for emission tomographic estimation

Jean-Baptiste Thibault, Ken Sauer, Charles Bouman

JEI, Vol. 9, Issue 03, (July 2000) https://doi.org/10.1117/12.10.1117/1.482754

KEYWORDS: Tomography, Image analysis, Head, Optimization (mathematics), Reconstruction algorithms, Positron emission tomography, Single photon emission computed tomography, Signal to noise ratio, Expectation maximization algorithms, Photon counting

Proceedings Article | 26 October 1999 Paper

Multiscale models for Bayesian inverse problems

Thomas Frese, Charles Bouman, Ken Sauer

Proceedings Volume 3813, (1999) https://doi.org/10.1117/12.366832

KEYWORDS: Wavelets, Tomography, Reconstruction algorithms, Data modeling, Optimization (mathematics), Wavelet transforms, Linear filtering, Inverse problems, Image processing, Photon counting

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Proceedings Article | 25 June 1999 Paper

Approximate Poisson likelihoods for simple optimization in MAP tomographic estimation

Jean-Baptiste Thibault, Ken Sauer, Charles Bouman

Proceedings Volume 3816, (1999) https://doi.org/10.1117/12.351311

KEYWORDS: Tomography, LCDs, Head, Reconstruction algorithms, Photon counting, Image restoration, Single photon emission computed tomography, Signal to noise ratio, Optimization (mathematics), Image quality

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Proceedings Article | 22 September 1998 Paper

Nonlinear prediction methods for estimation of clique weighting parameters in non-Gaussian image models

Sean Borman, Ken Sauer, Charles Bouman

Proceedings Volume 3459, (1998) https://doi.org/10.1117/12.323816

KEYWORDS: Error analysis, Magnetorheological finishing, Ions, Digital filtering, Statistical analysis, Nonlinear filtering, Statistical modeling, Quantization, Electrical engineering, Optimal filtering

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Proceedings Article | 16 September 1994 Paper

Temporal prediction of block motion vectors with local ambiguity-based adaptivity

Stephen O'Halek, Ken Sauer

Proceedings Volume 2308, (1994) https://doi.org/10.1117/12.185938

KEYWORDS: Motion estimation, Video coding, Temporal resolution, Image compression, Image analysis, Signal analysis, Electrical engineering, Image segmentation, Cameras, Video

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Proceedings Article | 22 October 1993 Paper

Integral projection methods for block motion estimation

Brian Schwartz, Ken Sauer

Proceedings Volume 2094, (1993) https://doi.org/10.1117/12.157974

KEYWORDS: Motion estimation, Fourier transforms, Image compression, High power microwaves, Image analysis, Video coding, Computing systems, Transform theory, Error analysis, Phase shifts

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Proceedings Article | 16 December 1992 Paper

Nonlinear multigrid methods of optimization in Bayesian tomographic image reconstruction

Charles Bouman, Ken Sauer

Proceedings Volume 1766, (1992) https://doi.org/10.1117/12.130838

KEYWORDS: Tomography, Reconstruction algorithms, Stochastic processes, Image processing, Signal processing, Image restoration, Image resolution, Image quality, Data modeling, Image analysis

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Proceedings Article | 1 November 1992 Paper

Hierarchical image coding with diamond-shaped subbands

Xiaohui Li, Jie Wang, Peter Bauer, Ken Sauer

Proceedings Volume 1818, (1992) https://doi.org/10.1117/12.131366

KEYWORDS: Image filtering, Nonlinear filtering, Image processing, Image compression, Visual communications, Image resolution, Signal to noise ratio, Visualization, Digital filtering, Receivers

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Proceedings Article | 1 November 1991 Paper

Bayesian approach to segmentation of temporal dynamics in video data

Coleen Jones, Ken Sauer

Proceedings Volume 1605, (1991) https://doi.org/10.1117/12.50248

KEYWORDS: Image segmentation, Visual communications, Image processing, Magnetorheological finishing, Video, Binary data, Image processing algorithms and systems, Cameras, Data modeling, Image visualization

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