Dr. Ralf Steinmetz Profile

Dr. Ralf Steinmetz

at Technische Univ Darmstadt

SPIE Involvement:

Author

Proceedings Article | 16 January 2006 Paper

Sampling cluster endurance for peer-to-peer based content distribution networks

Vasilios Darlagiannis, Andreas Mauthe, Ralf Steinmetz

Proceedings Volume 6071, 60710N (2006) https://doi.org/10.1117/12.646037

KEYWORDS: Network architectures, Reliability, Multimedia, Internet, Computer simulations, Detection and tracking algorithms, Video, Video coding, Receivers, Computer architecture

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Proceedings Article | 16 January 2006 Paper

A transform for network calculus and its application to multimedia networking

Krishna Pandit, Jens Schmitt, Claus Kirchner, Ralf Steinmetz

Proceedings Volume 6071, 607109 (2006) https://doi.org/10.1117/12.642411

KEYWORDS: Convolution, Multimedia, Calculus, Network architectures, Analytical research, Clouds, Lawrencium, Switches, Network security, Algorithms

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Proceedings Article | 15 December 2003 Paper

Polishing: a technique to reduce variations in cached layer-encoded video

Michael Zink, Oliver Heckmann, Jens Schmitt, Ralf Steinmetz

Proceedings Volume 5305, (2003) https://doi.org/10.1117/12.538815

KEYWORDS: Video, Polishing, Image segmentation, Computer simulations, Binary data, Optimization (mathematics), Video processing, Data storage, Computer programming, Remote sensing

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Proceedings Article | 7 January 2003 Paper

Scalable TCP-friendly video distribution for heterogeneous clients

Michael Zink, Carsten Griwodz, Jens Schmitt, Ralf Steinmetz

Proceedings Volume 5019, (2003) https://doi.org/10.1117/12.483915

KEYWORDS: Video, Internet, Control systems, OSLO, Multimedia, Local area networks, Computing systems, Network architectures, Video coding, Computer programming

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Proceedings Article | 29 April 2002 Paper

Biometric authentication for ID cards with hologram watermarks

Lucilla Croce Ferri, Astrid Mayerhoefer, Marcus Frank, Claus Vielhauer, Ralf Steinmetz

Proceedings Volume 4675, (2002) https://doi.org/10.1117/12.465323

KEYWORDS: Binary data, Digital watermarking, Holograms, Biometrics, Computer generated holography, Data processing, Data conversion, Photography, Dynamic signature verification, Tablets

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Proceedings Article | 10 December 2001 Paper

Exploiting the fair share to smoothly transport layered encoded video into proxy caches

Michael Zink, Carsten Griwodz, Jens Schmitt, Ralf Steinmetz

Proceedings Volume 4673, (2001) https://doi.org/10.1117/12.449989

KEYWORDS: Video, Internet, Receivers, Video coding, Computer programming, Computer simulations, Algorithm development, Video processing, Data storage, Computer architecture

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Proceedings Article | 12 November 2001 Paper

Framework for media data and owner authentication based on cryptography, watermarking, and biometric authentication

Jana Dittman, Martin Steinebach, Lucilla Croce Ferri, Claus Vielhauer, Ralf Steinmetz, Petra Wohlmacher

Proceedings Volume 4518, (2001) https://doi.org/10.1117/12.448204

KEYWORDS: Digital watermarking, Biometrics, Computer security, Cryptography, Error control coding, Wavelets, Video, Feature extraction, Multimedia, Network security

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Proceedings Article | 1 August 2001 Paper

Approaches to biometric watermarks for owner authentification

Claus Vielhauer, Ralf Steinmetz

Proceedings Volume 4314, (2001) https://doi.org/10.1117/12.435401

KEYWORDS: Biometrics, Digital watermarking, Feature extraction, Databases, Tablets, Visualization, Multimedia, Statistical analysis, Data storage, Personal digital assistants

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Proceedings Article | 9 May 2000 Paper

Combined video and audio watermarking: embedding content information in multimedia data

Jana Dittmann, Martin Steinebach, Ivica Rimac, Stephan Fischer, Ralf Steinmetz

Proceedings Volume 3971, (2000) https://doi.org/10.1117/12.385000

KEYWORDS: Digital watermarking, Video, Binary data, Multimedia, Feature extraction, Signal detection, Image processing, Detection and tracking algorithms, Edge detection, Algorithm development

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Proceedings Article | 9 May 2000 Paper

New approach for transformation-invariant image and video watermarking in the spatial domain: self-spanning patterns (SSP)

Jana Dittmann, Thomas Fiebig, Ralf Steinmetz

Proceedings Volume 3971, (2000) https://doi.org/10.1117/12.384971

KEYWORDS: Digital watermarking, Feature extraction, Video, Detection and tracking algorithms, Multimedia, Image compression, Computer programming, Image analysis, Image segmentation, Visualization

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Proceedings Article | 27 December 1999 Paper

Multicast for savings in cache-based video distribution

Carsten Griwodz, Michael Zink, Michael Liepert, Giwon On, Ralf Steinmetz

Proceedings Volume 3969, (1999) https://doi.org/10.1117/12.373532

KEYWORDS: Video, Receivers, Internet, Systems modeling, Forward error correction, Chemical elements, Multimedia, Network architectures, Data storage, Optimization (mathematics)

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Proceedings Article | 22 November 1999 Paper

Distributed media server for the support of multimedia teaching

Michael Liepert, Carsten Griwodz, Giwon On, Michael Zink, Ralf Steinmetz

Proceedings Volume 3845, (1999) https://doi.org/10.1117/12.371230

KEYWORDS: Multimedia, Video, Interfaces, Databases, Internet, Chemical elements, Computing systems, Network security, Control systems, Information security

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Proceedings Article | 24 August 1999 Paper

Music retrieval in ICOR

Lutz Finsterle, Stephan Fischer, Ivica Rimac, Ralf Steinmetz

Proceedings Volume 3846, (1999) https://doi.org/10.1117/12.360414

KEYWORDS: Detection and tracking algorithms, Video, Data modeling, Algorithm development, Human-machine interfaces, Systems modeling, Analytical research, Compact discs, Telecommunications, Standards development

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Proceedings Article | 17 December 1998 Paper

Choosing efficient feature sets for video classification

Stephan Fischer, Ralf Steinmetz

Proceedings Volume 3656, (1998) https://doi.org/10.1117/12.333840

KEYWORDS: Distance measurement, Video, Factor analysis, Video processing, Databases, Feature extraction, Image segmentation, Classification systems, Image classification, Semantic video

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Proceedings Article | 16 September 1998 Paper

Quality of service support for recording and playback of MBone sessions in heterogeneous IP/ATM networks

Jens Schmitt, Michael Zink, Lars Wolf, Ralf Steinmetz

Proceedings Volume 3408, (1998) https://doi.org/10.1117/12.321913

KEYWORDS: Virtual colonoscopy, Internet, Asynchronous transfer mode, Receivers, Video, Computer architecture, Data transmission, Human-machine interfaces, Information technology, Telecommunications

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Proceedings Article | 25 March 1996 Paper

Interoperable ITV systems based on MHEG

Helmut Cossmann, Carsten Griwodz, G. Grassel, M. Puhlhofer, M. Schreiber, Ralf Steinmetz, Hartmut Wittig, L. Wolf

Proceedings Volume 2667, (1996) https://doi.org/10.1117/12.235895

KEYWORDS: Glasses, Multimedia, Televisions, Video, Telecommunications, Data storage, Navigation systems, Polonium, Human-machine interfaces, Computer programming

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Showing 5 of 16 publications

SPIE Conference Volume | 16 September 1998

Broadband European Networks and Multimedia Services

Conference Committee Involvement (3)

Multimedia Computing and Networking 2006

18 January 2006 | San Jose, California, United States

Multimedia Computing and Networking 2005

19 January 2005 | San Jose, California, United States

Broadband Networks

18 May 1998 | Zurich, Switzerland

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