Prof. Andrew D. Ker Profile

Prof. Andrew D. Ker

Lecturer at Univ of Oxford

SPIE Involvement:

Author

Publications (25)

Proceedings Article | 4 March 2015 Paper

Towards dependable steganalysis

Tomáš Pevný, Andrew Ker

Proceedings Volume 9409, 94090I (2015) https://doi.org/10.1117/12.2083216

KEYWORDS: Steganalysis, Ferroelectric LCDs, Sensors, Machine learning, Databases, Cameras, Steganography, Forensic science, Gold, Picosecond phenomena

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Proceedings Article | 4 March 2015 Paper

Steganalysis of overlapping images

James Whitaker, Andrew Ker

Proceedings Volume 9409, 94090X (2015) https://doi.org/10.1117/12.2083213

KEYWORDS: Calibration, Steganalysis, Sensors, Cameras, Steganography, Distance measurement, Image analysis, Photography, Distortion, Principal component analysis

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Proceedings Article | 19 February 2014 Paper

Implementing the projected spatial rich features on a GPU

Andrew Ker

Proceedings Volume 9028, 90280K (2014) https://doi.org/10.1117/12.2042473

KEYWORDS: Convolution, Steganalysis, MATLAB, Image processing, C++, Feature extraction, Computer programming, Computer architecture, Matrix multiplication, Clocks

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Proceedings Article | 19 February 2014 Paper

Linguistic steganography on Twitter: hierarchical language modeling with manual interaction

Alex Wilson, Phil Blunsom, Andrew Ker

Proceedings Volume 9028, 902803 (2014) https://doi.org/10.1117/12.2039213

KEYWORDS: Steganography, Distortion, Data modeling, Digital watermarking, Modeling, Steganalysis, Databases, Receivers, Data hiding, Web 2.0 technologies

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Proceedings Article | 19 February 2014 Paper

A mishmash of methods for mitigating the model mismatch mess

Andrew Ker, Tomáš Pevný

Proceedings Volume 9028, 90280I (2014) https://doi.org/10.1117/12.2038908

KEYWORDS: Sensors, Steganalysis, Ferroelectric LCDs, Binary data, Steganography, Cameras, Performance modeling, Data modeling, Plasma display panels, Feature extraction

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Proceedings Article | 22 March 2013 Paper

The challenges of rich features in universal steganalysis

Tomáš Pevný, Andrew Ker

Proceedings Volume 8665, 86650M (2013) https://doi.org/10.1117/12.2006790

KEYWORDS: Steganalysis, Sensors, Detection and tracking algorithms, Neodymium, Feature extraction, Calibration, Steganography, Feature selection, Binary data, Dimension reduction

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Proceedings Article | 22 March 2013 Paper

Exploring multitask learning for steganalysis

Julie Makelberge, Andrew Ker

Proceedings Volume 8665, 86650N (2013) https://doi.org/10.1117/12.2004261

KEYWORDS: Data modeling, Steganalysis, Statistical modeling, Binary data, Machine learning, Optimization (mathematics), Sensors, Detection and tracking algorithms, Performance modeling, Steganography

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Proceedings Article | 22 March 2013 Paper

A study of embedding operations and locations for steganography in H.264 video

Andreas Neufeld, Andrew Ker

Proceedings Volume 8665, 86650J (2013) https://doi.org/10.1117/12.2003680

KEYWORDS: Video, Steganography, Video compression, Computer programming, Image compression, Feature extraction, Quantization, Video coding, Digital watermarking, Sensors

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Proceedings Article | 14 February 2012 Paper

Going from small to large data in steganalysis

Ivans Lubenko, Andrew Ker

Proceedings Volume 8303, 83030M (2012) https://doi.org/10.1117/12.910214

KEYWORDS: Steganalysis, Data modeling, Data processing, Stochastic processes, Image compression, Ferroelectric LCDs, Machine learning, Data acquisition, Web 2.0 technologies, Image quality

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Proceedings Article | 14 February 2012 Paper

Identifying a steganographer in realistic and heterogeneous data sets

Andrew Ker, Tomás Pevný

Proceedings Volume 8303, 83030N (2012) https://doi.org/10.1117/12.910565

KEYWORDS: Steganalysis, Sensors, Web 2.0 technologies, Steganography, Clouds, Feature extraction, Databases, Cameras, Switching, Machine learning

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Proceedings Article | 11 February 2011 Paper

A curiosity regarding steganographic capacity of pathologically nonstationary sources

Andrew Ker

Proceedings Volume 7880, 78800E (2011) https://doi.org/10.1117/12.871885

KEYWORDS: Sensors, Steganography, Steganalysis, Information security, Statistical analysis, Data compression, Binary data, Digital watermarking, Error analysis, Systems modeling

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Proceedings Article | 11 February 2011 Paper

Feature restoration and distortion metrics

Ventsislav Chonev, Andrew Ker

Proceedings Volume 7880, 78800G (2011) https://doi.org/10.1117/12.872574

KEYWORDS: Distortion, Detection and tracking algorithms, Mahalanobis distance, Sensors, Image restoration, Steganalysis, Computer programming, Target detection, Digital imaging, Error analysis

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Proceedings Article | 11 February 2011 Paper

A new paradigm for steganalysis via clustering

Andrew Ker, Tomás Pevný

Proceedings Volume 7880, 78800U (2011) https://doi.org/10.1117/12.872888

KEYWORDS: Steganalysis, Sensors, Steganography, Cameras, Image resolution, Detection and tracking algorithms, Distance measurement, Clouds, Statistical analysis, Matrices

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Proceedings Article | 11 February 2011 Paper

Steganalysis using logistic regression

Ivans Lubenko, Andrew Ker

Proceedings Volume 7880, 78800K (2011) https://doi.org/10.1117/12.872245

KEYWORDS: Lawrencium, Steganalysis, Binary data, Machine learning, Steganography, Sensors, Information security, Digital imaging, Detection and tracking algorithms, MATLAB

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Proceedings Article | 4 February 2009 Paper

From blind to quantitative steganalysis

Tomáš Pevny, Jessica Fridrich, Andrew Ker

Proceedings Volume 7254, 72540C (2009) https://doi.org/10.1117/12.805601

KEYWORDS: Steganalysis, Error analysis, Forensic science, Electronic imaging, Current controlled current source, Electroluminescence, Sensors, Feature extraction

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Proceedings Article | 4 February 2009 Paper

Feature reduction and payload location with WAM steganalysis

Andrew Ker, Ivans Lubenko

Proceedings Volume 7254, 72540A (2009) https://doi.org/10.1117/12.805910

KEYWORDS: Steganalysis, Sensors, Ferroelectric LCDs, Feature selection, Wavelets, Forensic science, Image filtering, Digital cameras, Feature extraction, Denoising

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Proceedings Article | 4 February 2009 Paper

The square root law of steganographic capacity for Markov covers

Tomáš Filler, Andrew Ker, Jessica Fridrich

Proceedings Volume 7254, 725408 (2009) https://doi.org/10.1117/12.805911

KEYWORDS: Steganography, Sensors, Steganalysis, Statistical analysis, Tin, Information security, Stochastic processes, Data hiding, Information theory, Databases

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Proceedings Article | 18 March 2008 Paper

Steganographic strategies for a square distortion function

Andrew Ker

Proceedings Volume 6819, 681904 (2008) https://doi.org/10.1117/12.765913

KEYWORDS: Data compression, Steganography, Distortion, Steganalysis, Sensors, Information theory, Binary data, Roads, Information security, Forensic science

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Proceedings Article | 18 March 2008 Paper

Revisiting weighted stego-image steganalysis

Andrew Ker, Rainer Böhme

Proceedings Volume 6819, 681905 (2008) https://doi.org/10.1117/12.766820

KEYWORDS: Cameras, Error analysis, Sensors, Image filtering, Steganalysis, Digital filtering, Denoising, Optical filters, Image analysis, Scanners

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Proceedings Article | 2 March 2007 Paper

Batch steganography and the threshold game

Andrew Ker

Proceedings Volume 6505, 650504 (2007) https://doi.org/10.1117/12.703334

KEYWORDS: Steganalysis, Steganography, Sensors, Statistical analysis, Reliability, Monte Carlo methods, Sensor performance, Binary data, Error analysis, Numerical analysis

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Proceedings Article | 2 March 2007 Paper

Optimally weighted least-squares steganalysis

Andrew Ker

Proceedings Volume 6505, 650506 (2007) https://doi.org/10.1117/12.704606

KEYWORDS: Steganalysis, Sensors, Error analysis, Statistical analysis, Remote sensing, Raster graphics, Steganography, Image analysis, Reliability, Digital cameras

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Proceedings Article | 15 February 2006 Paper

Fourth-order structural steganalysis and analysis of cover assumptions

Andrew Ker

Proceedings Volume 6072, 607203 (2006) https://doi.org/10.1117/12.642920

KEYWORDS: Sensors, Steganalysis, Steganography, Statistical analysis, Error analysis, Raster graphics, Detection and tracking algorithms, Sensor performance, Image processing, Remote sensing

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Proceedings Article | 15 February 2006 Paper

A two-factor error model for quantitative steganalysis

Rainer Böhme, Andrew Ker

Proceedings Volume 6072, 607206 (2006) https://doi.org/10.1117/12.643701

KEYWORDS: Error analysis, Sensors, Remote sensing, Steganalysis, Image compression, Raster graphics, Statistical analysis, Failure analysis, Image sensors, Statistical modeling

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Proceedings Article | 21 March 2005 Paper

Resampling and the detection of LSB matching in color bitmaps

Andrew Ker

Proceedings Volume 5681, (2005) https://doi.org/10.1117/12.586622

KEYWORDS: Sensors, Steganography, Raster graphics, Calibration, Steganalysis, Reliability, Sensor performance, Image compression, Detection and tracking algorithms, Computer programming

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Proceedings Article | 22 June 2004 Paper

Quantitative evaluation of pairs and RS steganalysis

Andrew Ker

Proceedings Volume 5306, (2004) https://doi.org/10.1117/12.526720

KEYWORDS: Remote sensing, Image compression, Steganography, Steganalysis, Image quality, Reliability, Statistical analysis, Digital imaging, Image analysis, Data hiding

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