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Christian Kraetzer - Vorträge, Stipendien, etc

2012

• Presentation of the paper: Eric Clausing, Christian Kraetzer, Jana Dittmann and Claus Vielhauer: A First Approach for the Contactless Acquisition and Automated Detection of Toolmarks on Pins of Locking Cylinders Using 3D Confocal Microscopy. At the 14th ACM Workshop on Multimedia and Security, 6 - 7 September, Warwick, UK, 2012.
• Presentation of the paper: Christian Arndt, Christian Kraetzer and Claus Vielhauer: First approach for a computer-aided textile fiber type determination based on template matching using a 3D laser scanning microscope. At the 14th ACM Workshop on Multimedia and Security, 6 - 7 September, Warwick, UK, 2012.
• Presentation of the paper: Rainer Kärgel, Mario Hildebrandt and Jana Dittmann: An evaluation of biometric fingerprint matchers in a forensic context using latent impressions. At the 14th ACM Workshop on Multimedia and Security, 6 - 7 September, Warwick, UK, 2012.
• Invited talk: Christian Krätzer: Statistische Methoden zur Erkennung von Anwendungsprotokollen. Forschungssymposium an der Deutschen Hochschule der Polizei zum Thema Sicherheit, Deutsche Hochschule der Polizei, Münster, Germany, 19./20. Juni 2012.

2011

• Presentation of the paper: Ronny Merkel, Anja Bräutigam, Christian Kraetzer, Jana Dittmann, Claus Vielhauer: Evaluation of binary pixel aging curves of latent fingerprint traces for different surfaces using a chromatic white light (CWL) sensor. At the Thirteenth ACM Multimedia Workshop on Multimedia and Security. Niagara Falls, NY, USA, Sept. 29-30, 2011.
• Presentation of the paper: Christian Kraetzer, Ronny Merkel, Robert Altschaffel, Eric Clausing, Jana Dittmann: Semi-automated communication protocol security verification for watermarking - pros and cons illustrated on a complex application scenario. At the Thirteenth ACM Multimedia Workshop on Multimedia and Security. Niagara Falls, NY, USA, Sept. 29-30, 2011.Presentation of the paper: Sven Tuchscheerer, Tobias Hoppe, Christian Kraetzer, Jana Dittmann: FirstAidAssistanceSystem: improvement of first aid measures by using Car2Car-communication. To appear in Proc. Intelligent Robots and Computer Vision XXVIII: Algorithms and Techniques, Electronic Imaging Conference 7878, IS&T/SPIE 23rd Annual Symposium, San Francisco, CA, USA, January 23rd - 27th, 2011.
• Presentation of the paper: Jana Fruth, Christian Kraetzer, Jana Dittmann: Design and evaluation of security multimedia warnings for interaction between human and industrial robots. At the Computer Vision XXVIII: Algorithms and Techniques, Electronic Imaging Conference 7878, IS&T/SPIE 23rd Annual Symposium, San Francisco, CA, USA, January 23rd - 27th, 2011.
• Presentation of the paper: Tobias Scheidat, Juliane Heinze, Claus Vielhauer, Jana Dittman, Christian Kraetzer: Comparative review of studies on aging effects in context of biometric authentication. At the Multimedia on Mobile Devices 2011, Electronic Imaging Conference 7881A, IS&T/SPIE 23rd Annual Symposium, San Francisco, CA, USA, January 23rd - 27th, 2011.
• Presentation of the paper: Christian Kraetzer, Kun Qian, Maik Schott, Jana Dittmann: A context model for microphone forensics and its application in evaluations. At the Media Watermarking, Security, and Forensics XIII, Electronic Imaging Conference 7880, IS&T/SPIE 23rd Annual Symposium, San Francisco, CA, USA, January 23rd - 27th, 2011.
• Presentation of the paper: Stefan Kiltz, Mario Hildebrandt, Jana Dittmann, Claus Vielhauer, Christian Kraetzer: Printed fingerprints: a first proposal for a framework for subjective assessment of appropriateness of selected printing technologies in forensics. At the Image Quality and System Performance VIII, Electronic Imaging Conference 7867, IS&T/SPIE 23rd Annual Symposium, San Francisco, CA, USA, January 23rd - 27th, 2011.

2010

• Presentation of the paper: Christian Kraetzer, Jana Dittmann, Marcus Leich: Multi-level information fusion and model plausibility checking in the application of statistical pattern recognition in audio steganalysis. At the Workshop on Pattern Recognition for IT Security on the 32nd Annual Symposium of the Germany Association for Pattern Recognition (DAGM'2010), Sept. 21st-24th, 2010.
• Presentation of the paper: Christian Kraetzer, Ronny Merkel, Robert Altschaffel, Eric Clausing, Maik Schott, Jana Dittmann: Modelling Watermark Communication Protocols using the CASPER Modelling Language. At the 12th ACM Workshop on Multimedia and Security (MM&Sec'10), September 9th-10th, Rome, Italy, ACM, ISBN: 978-1-4503-0286-9, 2010.
• Presentation of the paper: Andrey makrushin, Claus Vielhauer, Jana Dittmann: The Impact of ARTMAP to Appearance-based Face Verification. At the 12th ACM Workshop on Multimedia and Security (MM&Sec'10), September 9th-10th, Rome, Italy, ACM, ISBN: 978-1-4503-0286-9, 2010.
• Presentation of the paper: Maik Schott, Christian Kraetzer, Norman Specht, Jana Dittmann, Claus Vielhauer: Ensuring Integrity and Authenticity for Images in Digital Long-Term Preservation. At the Optics, Photonics and Digital Technologies for Multimedia Applications, Conference 7723, SPIE Photonics Europe, Brussels, Belgium, April 12th-15th, 2010.
• Seminar (DIA): Jana Dittmann, Christian Kraetzer, Stefan Kiltz, Claus Vielhauer: Sicherheit Service-orientierter Architekturen: Herausforderungen und Lösungen für die Praxis. Berlin, Germany, April 22nd, 2010.
• Presentation of the paper: Christian Kraetzer and Jana Dittmann: Improvement of information fusion-based audio steganalysis. At the Multimedia on Mobile Devices 2010, Electronic Imaging Conference 7542, IS&T/SPIE 22nd Annual Symposium, San Jose, CA, USA, January 18th and 19th, 2010.
• Presentation of the paper: Maik Schott, Christian Kraetzer, Jana Dittmann and Claus Vielhauer: Extending the Clark-Wilson security model for digital long-term preservation use cases. At the Multimedia on Mobile Devices 2010, Electronic Imaging Conference 7542, IS&T/SPIE 22nd Annual Symposium, San Jose, CA, USA, January 18th and 19th, 2010.
• Presentation of the paper: Kun Qian, Christian Kraetzer, Michael Biermann and Jana Dittmann: Audio annotation watermarking with robustness against DA/AD conversion. At the Media Forensics and Security XII, Electronic Imaging Conference 7541, IS&T/SPIE 22nd Annual Symposium, San Jose, CA, USA, January 18th - 20th, 2010.
• Presentation of the paper: Enrico Herrmann, Andrey Makrushin, Jana Dittmann, Claus Vielhauer, Mirko Langnickel and Christian Kraetzer: Hand-movement-based in-vehicle driver/front-seat passenger discrimination for centre console controls. At the Algorithms and Systems VIII, Electronic Imaging Conference 7532, IS&T/SPIE 22nd Annual Symposium, San Jose, CA, USA, January 19th and 20th, 2010.
• Presentation of the paper: Andrey Makrushin, Jana Dittmann, Claus Vielhauer, Mirko Langnickel and Christian Kraetzer: The feasibility test of state-of-the-art face detection algorithms for vehicle occupant detection. At the Algorithms and Systems VIII, Electronic Imaging Conference 7532, IS&T/SPIE 22nd Annual Symposium, San Jose, CA, USA, January 19th and 20th, 2010.

2009

• Presentation of the paper: Martin Rosenfeld, Reiner Creutzburg, Claus Vielhauer: Kamera-Sensorforensik: Erkennungsraten im Kontext von Bildkompression. At the GI Informatik 2009 - Workshop: Digitale Multimedia-Forensik, September 28th, Lübeck, Germany, 2009.
• Presentation of the paper: Christian Kraetzer, Jana Dittmann: Der Einfluss gleichgewichteter Fusion in der Mikrofonforensik unter beispielhafter Nutzung von zwei Klassifikatoren. At the GI Informatik 2009 - Workshop: Digitale Multimedia-Forensik, September 28th, Lübeck, Germany, 2009.
• Presentation of the paper: Christian Kraetzer, Maik Schott and Jana Dittmann: Unweighted Fusion in Microphone Forensics using a Decision Tree and Linear Logistic Regression Models. At the 11th ACM Workshop on Multimedia and Security, September 7-8, Princeton NJ, U.S.A. 2009.
• Presentation of the paper: Christian Kraetzer and Jana Dittmann: The Impact of Information Fusion in Steganalysis on the Example of Audio Steganalysis. At the Media Forensics and Security XI. Electronic Imaging Conference 7254, IS&T/SPIE 21th Annual Symposium, San Jose, CA, USA, January 18th-22st, 2009.

2008

• Invited talk: Christian Kraetzer: Datensicherung für die Ewigkeit - Das Schreckgespenst Datenverlust at Medienforum Mittweida, Mittweida (Germany), October 10th-12th, 2008. 
• Invited talk: Christian Kraetzer: Watermarking Benchmarking at ECRYPT: Challenges and Perspectives for Academia and Industry, Antwerp (Belgium), May 27th-29th, 2008.
• Presentation of the paper: Thomas Krahmer, Andreas Lang, Jana Dittmann, Christian Kraetzer, and Claus Vielhauer: Location Based Services for Mobile Devices - A Practical Evaluation. At the IASTED International Conference on Internet & Multimedia Systems & Applications (EuroIMSA). March 17th-19th, 2008. Insbruck, Austria. 2008. 
• Presentation of the paper: Christian Kraetzer, Jana Dittmann and Ronny Merkel; WLAN Steganography Revisited; At the Security, Forensics, Steganography, and Watermarking of Multimedia Contents X. Electronic Imaging Conference 6819, IS&T/SPIE 20th Annual Symposium, San Jose, CA, USA, January 26th-31st, 2008.
• Presentation of the paper: Christian Kraetzer and Jana Dittmann; Cover Signal Specific Steganalysis: the Impact of Training on the Example of two Selected Audio Steganalysis Approaches; At the Security, Forensics, Steganography, and Watermarking of Multimedia Contents X. Electronic Imaging Conference 6819, IS&T/SPIE 20th Annual Symposium, San Jose, CA, USA, January 26th-31st, 2008.
• Presentation of the paper: Claus Vielhauer, Maik Schott, Christian Kraetzer and Jana Dittmann; Nested Object Watermarking: Transparency and Capacity Evaluation; At the Security, Forensics, Steganography, and Watermarking of Multimedia Contents X. Electronic Imaging Conference 6819, IS&T/SPIE 20th Annual Symposium, San Jose, CA, USA, January 26th-31st, 2008.
• Session Chair: Christian Kraetzer: Session 6 - Biometrics at the Security, Forensics, Steganography, and Watermarking of Multimedia Contents X. Electronic Imaging Conference 6819, IS&T/SPIE 20th Annual Symposium, San Jose, CA, USA, January 26th-31st, 2008.
• Tutorial talk: Jana Dittmann, Claus Vielhauer, Reiner Creutzburg, Christian Kraetzer, Tobias Scheidat: Media Forensics - New Perspectives of Sensometrics and tamper Detection at the Electronic Imaging Conference, IS&T/SPIE 20th Annual Symposium, San Jose, CA, USA, January 26th-31st, 2008.

2007

• Invited talk: Christian Kraetzer: Sicherheit elektronischer Medien at the Vortrag des Monats of the Halleschen Bezirksvereins des Vereins Deutscher Ingenieure (VDI), Halle, Germany, November 8th, 2007. 
• Invited talk: Christian Kraetzer: Sichere Multimedia-Dateien durch digitale Wasserzeichen at the NRW-Forschungstag IT-Sicherheit, Bochum, Germany, October 11th, 2007.
• Invited talk: Christian Kraetzer: Audio Steganography on the Example of VoIP at the  2nd ECRYPT Summer School on Multimedia Security, Thessaloniki, Greece, September 24th-27th, 2007.
• Presentation of the paper: Andreas Lang, Jana Dittmann, Christian Kraetzer: Digital Watermarking and Perceptual Hashing of Audio Signals with Focus on their Evaluation at the 3rd WAVILA Challenge, June 14th, 2007, St. Malo, France, 2007.
• Received the grant of a scholarship from Fondation Michel Métivier for travel to IH07.
• Presentation of the paper: Christian Kraetzer and Jana Dittmann: Pros and Cons of Mel-cepstrum based Audio Steganalysis using SVM Classification at Information Hiding 2007, June 11-13th, 2007, St. Malo, France, 2007.

2006

• Presentation of the paper: Christian Kraetzer: Visualisation of Benchmarking Results in Digital Watermarking and Steganography at the 2nd Wavila Challenge, Geneva, Switzerland, September 28th, 2006.
• Presentation of the paper: Christian Kraetzer, Jana Dittmann, Andreas Lang, Tobias Kuehne: WLAN Steganography: A First Practical Review at the ACM Multimedia and Security Workshop 2006, Geneva, Switzerland, September 26-27th, 2006.
• Presentation of the paper: Christian Kraetzer, Jana Dittmann, Thomas Vogel and Reyk Hillert: Design and Evaluation of Steganography for Voice-over-IP at the IEEE International Symposium on Circuits and Systems, Kos, Greece, May 21-24th , 2006.
• Talk: Transparenz von Angriffen, Mini-Workshop: Audio Watermarking Benchmarking at the Sicherheit 2006 "Sicherheit - Schutz und Zuverlässigkeit"
  3. Jahrestagung Fachbereich Sicherheit der Gesellschaft für Informatik, Otto-von-Guericke University of Magdeburg, Germany, February 20-22nd, 2006.

2005

• Presentation of the paper: Jana Dittmann, Stefan Katzenbeisser, Christian Schallhart and Helmut Veith: Ensuring Media Integrity on Third-Party Infrastructures at the Security and Privacy in the Age of Ubiquitous Computing, IFIP TC11 20th International Conference on Information Security (SEC 2005), May 30 - June 1, 2005, Chiba, Japan.