Dr. George S. K. Fung Profile

Dr. George S. K. Fung

Assistant Professor at Johns Hopkins Medicine

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Author

Publications (18)

SPIE Journal Paper | 9 April 2021

Direct reconstruction of anatomical change in low-dose lung nodule surveillance

Jessica Flores, Grace Gang, Hao Zhang, Chen Ting Lin, Shui K. Fung, J. Webster Stayman

JMI, Vol. 8, Issue 02, 023503, (April 2021) https://doi.org/10.1117/12.10.1117/1.JMI.8.2.023503

KEYWORDS: Image registration, Lung, Surveillance, Image analysis, X-ray computed tomography, Tissues, Rigid registration, Data acquisition, Visualization, Reconstruction algorithms

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Proceedings Article | 15 February 2021 Presentation + Paper

A method for optimizing the x-ray tube current in ROI imaging using a simulation framework for radiation dose and image quality calculation for arbitrary fluence distributions

Sascha Manuel Huck, George S. K. Fung, Katia Parodi, Karl Stierstorfer

Proceedings Volume 11595, 1159505 (2021) https://doi.org/10.1117/12.2580828

KEYWORDS: Monte Carlo methods, Image quality, X-rays, X-ray imaging, Optimization (mathematics), Optical simulations, Tissues, Spine, Signal attenuation, Modulation

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Proceedings Article | 16 March 2020 Paper

A new concept for fluence field modulation in x-ray CT: the z-sbDBA

Sascha Manuel Huck, George S. Fung, Katia Parodi, Karl Stierstorfer

Proceedings Volume 11312, 1131202 (2020) https://doi.org/10.1117/12.2543185

KEYWORDS: Image acquisition, Image quality, Absorption filters, X-rays, Fluctuations and noise, CT reconstruction, Signal attenuation, X-ray computed tomography, Attenuators, Modulation, Scanners, Image filtering

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Proceedings Article | 1 March 2019 Presentation + Paper

Optimized intensity modulation for a dynamic beam attenuator in x-ray computed tomography

Sascha Manuel Huck, George S. Fung, Katia Parodi, Karl Stierstorfer

Proceedings Volume 10948, 1094824 (2019) https://doi.org/10.1117/12.2511704

KEYWORDS: Signal attenuation, Attenuators, Modulation, Image quality, X-ray computed tomography, Fluctuations and noise, Signal detection, Medicine, Scanners

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Proceedings Article | 9 March 2017 Paper

Projection-based motion estimation for cardiac functional analysis with high temporal resolution: a proof-of-concept study with digital phantom experiment

Yuki Suzuki, George S. Fung, Zeyang Shen, Yoshito Otake, Okkyun Lee, Luisa Ciuffo, Hiroshi Ashikaga, Yoshinobu Sato, Katsuyuki Taguchi

Proceedings Volume 10132, 1013230 (2017) https://doi.org/10.1117/12.2254723

KEYWORDS: X-ray computed tomography, Heart, Medical imaging, Error analysis, Motion estimation, Motion analysis, Functional analysis, Temporal resolution, Image registration, Statistical analysis, Image resolution, 3D image processing, Image quality, Image restoration

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Proceedings Article | 9 March 2017 Presentation + Paper

False dyssynchrony: problem with image-based cardiac functional analysis using x-ray computed tomography

Masafumi Kidoh, Zeyang Shen, Yuki Suzuki, Luisa Ciuffo, Hiroshi Ashikaga, George S. Fung, Yoshito Otake, Stefan Zimmerman, Joao A. Lima, Takahiro Higuchi, Okkyun Lee, Yoshinobu Sato, Lewis Becker, Elliot Fishman, Katsuyuki Taguchi

Proceedings Volume 10132, 101321U (2017) https://doi.org/10.1117/12.2250257

KEYWORDS: X-ray computed tomography, Functional analysis, Heart, Computed tomography, Motion estimation, CT reconstruction, Magnetic resonance imaging, Temporal resolution, Reconstruction algorithms

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Proceedings Article | 19 March 2014 Paper

A biological phantom for evaluation of CT image reconstruction algorithms

J. Cammin, G. Fung, E. Fishman, J. Siewerdsen, J. Stayman, K. Taguchi

Proceedings Volume 9033, 903307 (2014) https://doi.org/10.1117/12.2043714

KEYWORDS: Liver, Reconstruction algorithms, Tissues, Computed tomography, Image quality, Kidney, Image filtering, Image restoration, CT reconstruction, Imaging systems

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Proceedings Article | 19 March 2013 Paper

A papillary muscle guided motion estimation method for gated cardiac imaging

Jizhe Wang, George Fung, Tao Feng, Benjamin Tsui

Proceedings Volume 8668, 86682G (2013) https://doi.org/10.1117/12.2007505

KEYWORDS: Motion estimation, Heart, Positron emission tomography, Motion models, Error analysis, 3D image processing, Optical flow, Computed tomography, Medical imaging, Blood

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Proceedings Article | 19 March 2013 Paper

Hybrid EID algorithm for PCD/EID-CT systems

Katsuyuki Taguchi, George Fung, Qiulin Tang, Jochen Cammin

Proceedings Volume 8668, 86682M (2013) https://doi.org/10.1117/12.2008040

KEYWORDS: Sensors, X-rays, X-ray detectors, X-ray computed tomography, Strontium, Computed tomography, Medical imaging, Photon counting, Physics, Medicine

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Proceedings Article | 3 March 2012 Paper

Spectral response compensation for photon-counting clinical x-ray CT using sinogram restoration

Somesh Srivastava, Jochen Cammin, George S. Fung, Benjamin M. Tsui, Katsuyuki Taguchi

Proceedings Volume 8313, 831311 (2012) https://doi.org/10.1117/12.911394

KEYWORDS: X-rays, X-ray computed tomography, X-ray detectors, Algorithm development, Algorithms, Reconstruction algorithms, Sensors, X-ray imaging, Optimization (mathematics), Signal attenuation

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Proceedings Article | 24 February 2012 Paper

Investigation of ultra low-dose scans in the context of quantum-counting clinical CT

T. Weidinger, T. Buzug, T. Flohr, G. S. Fung, S. Kappler, K. Stierstorfer, B. M. Tsui

Proceedings Volume 8313, 83134B (2012) https://doi.org/10.1117/12.911331

KEYWORDS: Sensors, Electroluminescence, X-ray computed tomography, Electronics, X-rays, Abdomen, Scanners, Denoising, Prototyping, X-ray imaging

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Proceedings Article | 17 March 2011 Paper

XCAT/DRASIM: a realistic CT/human-model simulation package

George S. K. Fung, Karl Stierstorfer, W. Paul Segars, Katsuyuki Taguchi, Thomas Flohr, Benjamin M. W. Tsui

Proceedings Volume 7961, 79613D (2011) https://doi.org/10.1117/12.878034

KEYWORDS: Computer simulations, X-ray computed tomography, Sensors, Motion models, Scanners, Mathematical modeling, X-rays, X-ray sources, Medicine, Systems modeling

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Proceedings Article | 28 February 2009 Paper

Toward modeling of regional myocardial ischemia and infarction: generation of realistic coronary arterial tree for the heart model of the XCAT phantom

George S. Fung, W. Paul Segars, Alexander Veress, Grant Gullberg, Benjamin M. Tsui

Proceedings Volume 7262, 726215 (2009) https://doi.org/10.1117/12.811571

KEYWORDS: 3D modeling, Computed tomography, Heart, Arteries, Image segmentation, Data modeling, Ischemia, Medical imaging, Instrument modeling, 3D image processing

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Proceedings Article | 2 March 2006 Paper

Effect of heart rate on CT angiography using the enhanced cardiac model of the 4D NCAT

W. Segars, K. Taguchi, G. Fung, E. Fishman, B. Tsui

Proceedings Volume 6142, 61420I (2006) https://doi.org/10.1117/12.653347

KEYWORDS: Heart, Beam propagation method, Data modeling, 3D modeling, Motion models, Arteries, Data acquisition, X-ray computed tomography, Computed tomography, Angiography

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Proceedings Article | 2 March 2006 Paper

Development of a computer-generated model for the coronary arterial tree based on multislice CT and morphometric data

George Fung, W. Paul Segars, Katsuyuki Taguchi, Elliot Fishman, Benjamin Tsui

Proceedings Volume 6142, 61421M (2006) https://doi.org/10.1117/12.653491

KEYWORDS: Arteries, Data modeling, 3D modeling, Heart, Image segmentation, Computer simulations, Motion models, Computed tomography, Medical imaging, Mathematical modeling

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Proceedings Article | 2 March 2006 Paper

Toward time resolved 4D cardiac CT imaging with patient dose reduction: estimating the global heart motion

Katsuyuki Taguchi, W. Paul Segars, George Fung, Benjamin Tsui

Proceedings Volume 6142, 61420J (2006) https://doi.org/10.1117/12.653279

KEYWORDS: Motion estimation, Heart, Computed tomography, Temporal resolution, Modulation, Motion measurement, Reconstruction algorithms, Arteries, Spatial resolution, Image restoration

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SPIE Journal Paper | 1 October 2003

Camera calibration from road lane markings

George Fung, Nelson Yung, Grantham Pang

OE, Vol. 42, Issue 10, (October 2003) https://doi.org/10.1117/12.10.1117/1.1606458

KEYWORDS: Cameras, Calibration, Roads, Barium, 3D image processing, Optical engineering, Content addressable memory, Device simulation, Commercial off the shelf technology, Surveillance

SPIE Journal Paper | 1 June 2002

Effective moving cast shadow detection for monocular color traffic image sequences

George Fung, Nelson Yung, Grantham Pang, Andrew Lai

OE, Vol. 41, Issue 06, (June 2002) https://doi.org/10.1117/12.10.1117/1.1473638

KEYWORDS: Roads, Image segmentation, Cameras, Multiphoton fluorescence microscopy, Optical engineering, Light sources and illumination, Error analysis, Algorithm development, Light sources, Chromium

Showing 5 of 18 publications

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