Mr. Henry D. Knowles Profile

Henry D. Knowles

at Univ of Bristol

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Publications (4)

Proceedings Article | 23 June 2003 Paper

Efficient watermarking system with increased reliability for video authentication

Dominique Winne, Henry Knowles, David Bull, C. Canagarajah

Proceedings Volume 5150, (2003) https://doi.org/10.1117/12.503207

KEYWORDS: Digital watermarking, Video, Image filtering, Visibility, Image compression, Video compression, Image processing, Reliability, Distortion, Receivers

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Proceedings Article | 23 June 2003 Paper

Bayesian approach to attack characterization using robust watermarks

Henry Knowles, Dominique Winne, C. Canagarajah, David Bull

Proceedings Volume 5150, (2003) https://doi.org/10.1117/12.503067

KEYWORDS: Digital watermarking, Feature extraction, Wavelets, Monte Carlo methods, Error analysis, Coherence (optics), Library classification systems, Image processing, Image filtering, Data modeling

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Proceedings Article | 29 April 2002 Paper

Compression-compatible digital watermark algorithm for authenticity verification and localization

Dominque Winne, Henry Knowles, David Bull, Cedric Canagarajah

Proceedings Volume 4675, (2002) https://doi.org/10.1117/12.465293

KEYWORDS: Digital watermarking, Sensors, Detection and tracking algorithms, Image compression, Tolerancing, Quantization, Embedded systems, Distortion, Sensor performance, Visualization

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Proceedings Article | 29 April 2002 Paper

Digital watermarking in wavelet domain with predistortion for authenticity verification and localization

Dominque Winne, Henry Knowles, David Bull, Cedric Canagarajah

Proceedings Volume 4675, (2002) https://doi.org/10.1117/12.465292

KEYWORDS: Digital watermarking, Wavelets, Sensors, Quantization, Visualization, Distortion, Detection and tracking algorithms, Embedded systems, Algorithm development, Image resolution

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