Dr. Klaus Erhard Profile

Dr. Klaus Erhard

at Philips Research

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Author

Publications (11)

Proceedings Article | 9 March 2018 Paper

Experimental evaluation of the influence of scattered radiation on quantitative spectral CT imaging

Artur Sossin, Michal Rokni, Bernhard Brendel, Heiner Daerr, Axel Thran, Klaus Erhard

Proceedings Volume 10573, 105731B (2018) https://doi.org/10.1117/12.2293476

KEYWORDS: Iodine, Gadolinium, X-rays, Sensors, Photon counting, X-ray computed tomography, X-ray imaging, Scanners, Prototyping, Computed tomography, Scatter measurement

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Proceedings Article | 9 March 2018 Paper

Application of three-pass metal artefact reduction to photon-counting breast tomosynthesis

Harald Heese, Frank Bergner, Klaus Erhard, Artur Sossin, Björn Cederström, Mats Lundqvist

Proceedings Volume 10573, 105730F (2018) https://doi.org/10.1117/12.2292334

KEYWORDS: Metals, Breast, Biopsy, Reconstruction algorithms, Image processing, Image segmentation, Diagnostics, Sensors, Tissues

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Proceedings Article | 9 March 2017 Presentation + Paper

Lesion characterization in spectral photon-counting tomosynthesis

Björn Cederström, Erik Fredenberg, Karl Berggren, Klaus Erhard, Mats Danielsson, Matthew Wallis

Proceedings Volume 10132, 1013205 (2017) https://doi.org/10.1117/12.2253966

KEYWORDS: Mammography, Photon counting, Tissues, Imaging spectroscopy, Solids, Radiography, Breast, Aluminum, Tumors, Calibration, Interference (communication), X-rays, Sensors

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Proceedings Article | 18 March 2015 Paper

Computation of synthetic mammograms with an edge-weighting algorithm

Hanno Homann, Frank Bergner, Klaus Erhard

Proceedings Volume 9412, 94121Q (2015) https://doi.org/10.1117/12.2081797

KEYWORDS: Mammography, Reconstruction algorithms, Digital breast tomosynthesis, Sensors, Detection and tracking algorithms, Cancer, Data acquisition, Breast, Prototyping, Breast cancer

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Proceedings Article | 18 March 2015 Paper

X-ray attenuation of adipose breast tissue: in-vitro and in-vivo measurements using spectral imaging

Erik Fredenberg, Klaus Erhard, Karl Berggren, David Dance, Kenneth Young, Björn Cederström, Henrik Johansson, Mats Lundqvist, Elin Moa, Hanno Homan, Paula Willsher, Fleur Kilburn-Toppin, Matthew Wallis

Proceedings Volume 9412, 94121U (2015) https://doi.org/10.1117/12.2081747

KEYWORDS: Tissues, Signal attenuation, In vitro testing, Breast, X-rays, In vivo imaging, Aluminum, X-ray imaging, Mammography, Polymethylmethacrylate

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Proceedings Article | 19 March 2014 Paper

Spectral lesion characterization on a photon-counting mammography system

Klaus Erhard, Erik Fredenberg, Hanno Homann, Ewald Roessl

Proceedings Volume 9033, 90331F (2014) https://doi.org/10.1117/12.2043028

KEYWORDS: Aluminum, Mammography, Breast, Calibration, Tissues, Tumors, Polymethylmethacrylate, Solids, Photons, Signal attenuation

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Proceedings Article | 3 March 2012 Paper

Generalized filtered back-projection for digital breast tomosynthesis reconstruction

Klaus Erhard, Michael Grass, Sebastian Hitziger, Armin Iske, Tim Nielsen

Proceedings Volume 8313, 831320 (2012) https://doi.org/10.1117/12.911163

KEYWORDS: Reconstruction algorithms, Digital breast tomosynthesis, Image quality, Sensors, Image filtering, Image quality standards, Breast, Tomography, Signal attenuation, X-rays

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Proceedings Article | 14 February 2012 Paper

Robust estimation of mammographic breast density: a patient-based approach

Harald Heese, Klaus Erhard, Andre Gooßen, Thomas Bulow

Proceedings Volume 8314, 83140T (2012) https://doi.org/10.1117/12.910897

KEYWORDS: Tissues, Breast, Image segmentation, Calibration, Signal attenuation, Data modeling, Breast cancer, Mammography, Image processing, Data acquisition

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Proceedings Article | 16 March 2011 Paper

A second pass correction method for calcification artifacts in digital breast tomosynthesis

Klaus Erhard, Michael Grass, Tim Nielsen

Proceedings Volume 7961, 796119 (2011) https://doi.org/10.1117/12.877949

KEYWORDS: Breast, Image segmentation, Digital breast tomosynthesis, Tissues, Magnetic resonance imaging, Reconstruction algorithms, Sensors, Tomography, Image quality, Mammography

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Proceedings Article | 14 March 2009 Paper

A second pass gated reconstruction scheme with conjugate weights

Klaus Erhard, Michael Grass

Proceedings Volume 7258, 725834 (2009) https://doi.org/10.1117/12.812099

KEYWORDS: Data acquisition, Heart, Reconstruction algorithms, Image segmentation, X-rays, Electrocardiography, Data modeling, Signal attenuation, 3D image reconstruction, Arteries

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Proceedings Article | 11 March 2009 Paper

Four-dimensional cardiac reconstruction from rotational x-ray sequences: first results for 4D coronary angiography

Eberhard Hansis, Hermann Schomberg, Klaus Erhard, Olaf Dössel, Michael Grass

Proceedings Volume 7258, 72580B (2009) https://doi.org/10.1117/12.811104

KEYWORDS: Reconstruction algorithms, Arteries, Motion estimation, Angiography, X-rays, Heart, 3D modeling, 3D image processing, Lithium, Image quality

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Showing 5 of 11 publications

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