@article { Villan:TIFS2006,
    author = { Renato Vill{\'a}n and Sviatoslav Voloshynovskiy and Oleksiy Koval and Thierry Pun },
    title = { Multilevel 2D Bar Codes: Towards High Capacity Storage Modules for Multimedia Security and Management },
    journal = { IEEE Transactions on Information Forensics and Security },
    year = { 2006 },
    volume = { 1 },
    pages = { 405--420 },
    vgclass = { refpap },
    vgproject = { watermarking },
    number = { 4 },
    month = { December },
    abstract = { In this paper, we deal with the design of high-rate multilevel two-dimensional (2D) bar codes for the print-and-scan channel. Firstly, we introduce a framework for evaluating the performance limits of these codes by studying an inter-symbol interference (ISI) free, synchronous, and noiseless print-and-scan channel, where the input and output alphabets are finite and the printer device uses halftoning to simulate multiple gray levels. Secondly, we present a new model for the print-and-scan channel specifically adapted to the problem of communications via multilevel 2D bar codes. This model, inspired by our experimental work, assumes no ISI and perfect synchronization, but independence between the channel input and the noise is not supposed. We adapt the theory of multilevel coding with multistage decoding (MLC/MSD) to the print-and-scan channel. Finally, we present experimental results confirming the utility of our channel model, and showing that multilevel 2D bar codes using MLC/MSD can reliably achieve the high capacity storage requirements of many multimedia security and management applications. }
}

@inproceedings { Voloshynovskiy:ACM2006,
    author = { Sviatoslav Voloshynovskiy and Oleksiy Koval and Emre Topak and J.E. Vila Forcen and Thierry Pun },
    title = { On reversibility of random binning based data-hiding techniques: security perspectives },
    booktitle = { ACM Multimedia and Security Workshop 2006 },
    year = { 2006 },
    vgclass = { refpap },
    vgproject = { watermarking },
    address = { Geneva, Switzerland },
    month = { September 26-27 }
}

@inproceedings { Koval:ACM2006,
    author = { Oleksiy Koval and S. Voloshynovskiy and Taras Holotyak and Thierry Pun },
    title = { Information-theoretic analysis of steganalysis in real images },
    booktitle = { ACM Multimedia and Security Workshop 2006 },
    year = { 2006 },
    vgclass = { refpap },
    vgproject = { watermarking },
    address = { Geneva, Switzerland },
    month = { September 26-27 }
}

@article { Alecu:SP2005:GTD,
    author = { Teodor Iulian Alecu and Sviatoslav Voloshynovskiy and Thierry Pun },
    title = { The Gaussian Transform of distributions: definition, computation and application },
    journal = { IEEE Transactions on Signal Processing },
    year = { 2006 },
    volume = { 54 },
    pages = { 2976--2985 },
    vgclass = { refpap },
    vgproject = { bmi },
    month = { August },
    note = { (accepted October 2005) }
}

@inproceedings { Koval:2006:ICME,
    author = { Oleksiy Koval and Sviatoslav Voloshynovskiy and Thierry Pun },
    title = { Host communications for non-Gaussian state-dependent channels: Laplacian case },
    booktitle = { Proceedings of International Conference on Multimedia and Expo },
    year = { 2006 },
    month = { July },
    address = { Toronto, Canada },
    vgclass = { refpap },
    vgproject = { watermarking }
}

@inproceedings { Voloshynovskiy:2006:ABAS,
    author = { Sviatoslav Voloshynovskiy and Oleksiy Koval and and M. Lozynska },
    title = { Novel interactive services for e-tourism and e-commerce },
    booktitle = { Proceedings of International Conference on },
    year = { 2006 },
    month = { July },
    address = { Montreux, Switzerland },
    vgclass = { refpap },
    vgproject = { watermarking }
}

@misc { Kronegg:SIMILAR:ITRBPO,
    vgclass = { fullconf },
    vgproject = { bmi },
    author = { Julien Kronegg and Guillaume Chanel and Sviatoslav Voloshynovskiy and Thierry Pun },
    title = { Information-transfer rate based performance optimization for brain-computer interfaces },
    howpublished = { Similar NOE Workshop },
    month = { June 8--9 },
    year = { 2006 },
    note = { Heraklion, Greece },
    address = { Heraklion, Greece }
}

@article { Pun:NSRE:BCI-CVML,
    author = { Thierry Pun and Teodor Iulian Alecu and Guillaume Chanel and Sviatoslav Voloshynovskiy },
    title = { Brain-computer interaction research at the Computer Vision and Multimedia Laboratory, University of Geneva },
    journal = { IEEE transactions on neural systems and rehabilitation engineering, Special Issue on Brain-Computer Interaction },
    year = { 2006 },
    volume = { 14 },
    vgclass = { refpap },
    vgproject = { bmi },
    number = { 2 },
    month = { June }
}

@inproceedings { Koval:WIC2006:Koval_wic2006,
    author = { Oleksiy Koval and Sviatoslav Voloshynovskiy and Thierry Pun },
    title = { Laplacian channel state estimation for state dependent channels },
    booktitle = { Proceedings of 27-th Symposium on information theory in the Benelux },
    year = { 2006 },
    vgclass = { refpap },
    vgproject = { watermarking },
    address = { Noordwijk, The Netherlands },
    month = { June 8-9, 2006, }
}

@inproceedings { Voloshynovskiy:WIC2006:Voloshynovskiy_wic2006,
    author = { Sviatoslav Voloshynovskiy and Oleksiy Koval and Emre Topak and Thierry Pun },
    title = { Message Communications And Channel State Estimation For State Dependent Channels },
    booktitle = { Proceedings of 27-th Symposium on information theory in the Benelux },
    year = { 2006 },
    vgclass = { refpap },
    vgproject = { watermarking },
    address = { Noordwijk, The Netherlands },
    month = { June 8-9, 2006, }
}

@inproceedings { Vila:ICASSP2006:CPUCA,
    author = { J. E. Vila-Forc{\'e}n and Sviatoslav Voloshynovskiy and Oleksiy Koval and Thierry Pun },
    title = { Costa problem under channel ambiguity },
    booktitle = { Proceedings of 2006 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) },
    year = { 2006 },
    vgclass = { refpap },
    vgproject = { watermarking },
    address = { Toulouse, France },
    month = { May 14-19 }
}

@article { Volosynovskiy:2005:EPC,
    author = { Sviatoslav Voloshynovskiy and Oleksiy Koval and M. Kivanc Mihcak and Thierry Pun },
    title = { The Edge Process Model and Its Application to Information Hiding Capacity Analysis },
    journal = { IEEE Trans. on Signal Processing },
    year = { 2006 },
    volume = { 54 },
    pages = { 1813--1825 },
    vgclass = { refpap },
    vgproject = { watermarking },
    number = { 5 },
    month = { May }
}

@article { Koval:SP2005:RIKHSW,
    author = { Oleksiy Koval and Sviatoslav Voloshynovskiy and J.E. Vila-Forc{\'e}n and F. P{\'e}rez-Gonz{\'a}lez and Fr\'{e}d\'{e}ric Deguillaume and Thierry Pun },
    title = { Robustness Improvement of Known-Host-State Watermarking Using Host Statistics },
    journal = { Elsevier Science, Signal Processing },
    year = { 2006 },
    volume = { 86 },
    pages = { 1076--1088 },
    vgclass = { refpap },
    vgproject = { watermarking },
    number = { 5 },
    month = { May }
}

@article { PerezFreire:AA:IFS2006,
    author = { Luis P{\'e}rez-Freire and Fernando P{\'e}rez-Gonz{\'a}lez and Sviatoslav Voloshynovskiy },
    title = { An Accurate Analysis of Scalar Quantization-Based Data Hiding },
    journal = { IEEE Transactions on Information Forensics and Security },
    year = { 2006 },
    volume = { 1 },
    pages = { 80--86 },
    vgclass = { refpap },
    vgproject = { watermarking },
    number = { 1 },
    month = { March },
    booktitle = { IEEE Transactions on Information Forensics and Security }
}

@inproceedings { Rytsar:SPIE2006,
    author = { Yuriy Rytsar and Sviatoslav Voloshynovskiy and Oleksiy Koval and Fr\'{e}d\'{e}ric Deguillaume and Emre Topak and Sergei Startchik and Thierry Pun },
    title = { Tangible interactive system for document browsing and visualisation of multimedia data },
    booktitle = { Proceedings of SPIE Photonics West, Electronic Imaging 2006, Multimedia Content Analysis, Management, and Retrieval 2006 (EI122) },
    year = { 2006 },
    volume = { 6073 },
    editor = { Edward Y. Chang, Alan Hanjalic, Nicu Sebe },
    vgclass = { refpap },
    vgproject = { watermarking },
    address = { San Jose, USA },
    month = { January 15-19 }
}

@inproceedings { Vila:SPIE2006:ADH,
    author = { J. E. Vila-Forc{\'e}n and Sviatoslav Voloshynovskiy and Oleksiy Koval and Emre Topak and Thierry Pun },
    title = { Asymmetrically informed data-hiding optimization of achievable rate for Laplacian host },
    booktitle = { Proceedings of SPIE Photonics West, Electronic Imaging 2006, Security,Steganography, and Watermarking of Multimedia Contents VIII (EI121) },
    year = { 2006 },
    vgclass = { refpap },
    vgproject = { watermarking },
    address = { San Jose, USA },
    month = { January 15-19 }
}

@inproceedings { Svolos:SPIE2006:DA,
    author = { Sviatoslav Voloshynovskiy and Oleksiy Koval and R. Vill{\'a}n and Emre Topak and Jose Emilio Vila-Forc{\'e}n and Fr\'{e}d\'{e}ric Deguillaume and Yuriy Rytsar and Thierry Pun },
    title = { Information-Theoretic Analysis of Electronic and Printed Document Authentication },
    booktitle = { Proceedings of {SPIE-IS{\&}T} Electronic Imaging 2006, Security, Steganography, and Watermarking of Multimedia Contents VIII },
    year = { 2006 },
    vgclass = { refpap },
    vgproject = { watermarking },
    address = { San Jose, USA },
    month = { January 15--19 },
    abstract = { In this paper we consider the problem of document authentication in electronic and printed forms. We formulate this problem from the information-theoretic perspectives and present the joint source-channel coding theorems showing the performance limits in such protocols. We analyze the security of document authentication methods and present the optimal attacking strategies with corresponding complexity estimates that, contrarily to the existing studies, crucially rely on the information leaked by the authentication protocol. Finally, we present the results of experimental validation of the developed concept that justifies the practical efficiency of the elaborated framework. }
}

@inproceedings { Villan:SPIE2006:TE,
    author = { R. Vill{\'a}n and Sviatoslav Voloshynovskiy and Oleksiy Koval and J.E. Vila-Forc{\'e}n and Emre Topak and Fr\'{e}d\'{e}ric Deguillaume and Y. Rytsar and Thierry Pun },
    title = { Text Data-Hiding for Digital and Printed Documents: Theoretical and Practical Considerations },
    booktitle = { Proceedings of {SPIE-IS{\&}T} Electronic Imaging 2006, Security, Steganography, and Watermarking of Multimedia Contents VIII },
    year = { 2006 },
    vgclass = { refpap },
    vgproject = { watermarking },
    address = { San Jose, USA },
    month = { January 15--19 },
    abstract = { In this paper, we propose a new theoretical framework for the data-hiding problem of digital and printed text documents. We explain how this problem can be seen as an instance of the well-known Gel'fand-Pinsker problem. The main idea for this interpretation is to consider a text character as a data structure consisting of multiple quantifiable features such as shape, position, orientation, size, color, etc. We also introduce color quantization, a new semi-fragile text data-hiding method that is fully automatable, has high information embedding rate, and can be applied to both digital and printed text documents. The main idea of this method is to quantize the color or luminance intensity of each character in such a manner that the human visual system is not able to distinguish between the original and quantized characters, but it can be easily performed by a specialized reader machine. We also describe halftone quantization, a related method that applies mainly to printed text documents. Since these methods may not be completely robust to printing and scanning, an outer coding layer is proposed to solve this issue. Finally, we describe a practical implementation of the color quantization method and present experimental results for comparison with other existing methods. }
}

@inproceedings { Vila:SPIE2006:UDQ,
    author = { J. E. Vila-Forc{\'e}n and Sviatoslav Voloshynovskiy and Oleksiy Koval and Thierry Pun },
    title = { Performance analysis of non-uniform quantization-based data-hiding },
    booktitle = { Proceedings of SPIE Photonics West, Electronic Imaging 2006, Security, Steganography, and Watermarking of Multimedia Contents VIII (EI121) },
    year = { 2006 },
    vgclass = { refpap },
    vgproject = { watermarking },
    address = { San Jose, USA },
    month = { January 15-19 }
}

@inproceedings { Topak:SPIE2006:GA,
    author = { Emre Topak and Sviatoslav Voloshynovskiy and Oleksiy Koval and M. E. Haroutunian and J.E. Vila-Forc{\'e}n and Thierry Pun },
    title = { E-capacity analysis of data-hiding channels with geometrical attacks },
    booktitle = { Proceedings of SPIE Electronic Imaging 2006, Security, Steganography, and Watermarking of Multimedia Contents VIII (EI121) },
    year = { 2006 },
    vgclass = { refpap },
    vgproject = { watermarking },
    address = { San Jose, USA },
    month = { January 15-19 }
}

@misc { Voloshynovskiy:2006:CVG,
    vgclass = { patent },
    vgproject = { watermarking },
    author = { Sviatoslav Voloshynovskiy and Oleksiy Koval and Thierry Pun },
    title = { BRANDS PROTECTION AND PRODUCT AUTHENTICATION USING PORTABLE DEVICES },
    howpublished = { US Patent Application },
    year = { 2006 },
    note = { (pending) }
}

@inproceedings { Vila:2006:SPIE,
    author = { Jos{\'e} Emilio Vila-Forc{\'e}n and Oleksiy Koval and Sviatoslav Voloshynovskiy and Thierry Pun },
    title = { Asymmetric side information and non-noticable Costa data-hiding },
    booktitle = { Proceedings of SPIE Photonics West, Security and watermarking of multimedia contents },
    year = { 2006 },
    address = { San Jose, CA, USA },
    vgclass = { refpap },
    vgproject = { watermarking }
}

@phdthesis { Vila:PhD,
    author = { Jos√© {Vila Forcen} },
    title = { Digital data-hiding based identification systems },
    school = { University of Geneva },
    year = { 2006 },
    vgclass = { thesis },
    vgproject = { watermarking }
}

@article { Vila:2004:EURASIP,
    author = { J.E. Vila-Forc{\'e}n and Sviatoslav Voloshynovskiy and Oleksiy Koval and Thierry Pun },
    title = { Facial Image Compression Based on Structured Codebooks in Overcomplete Domain },
    journal = { {EURASIP} Journal on Applied Signal Processing, Frames and overcomplete representations in signal processing, communications, and information theory special issue },
    year = { 2006 },
    volume = { 2006 },
    pages = { 1--11 },
    vgclass = { refpap },
    vgproject = { watermarking },
    number = { Article {ID} 69042 }
}

@techreport { Koval:TR2006,
    author = { Oleksiy Koval and Sviatoslav Voloshinovskiy and Thierry Pun },
    title = { Analysis of modality dependence/independence impact on the performance of multimodal fusion systems: Summary of main results },
    institution = { Computer Vision and Multimedia Laboratory, Computing Centre, University of Geneva },
    year = { 2006 },
    vgclass = { report },
    vgproject = { watermarking },
    number = { 06.12 },
    address = { Rue G\'en\'eral Dufour, 24, CH-1211, Geneva, Switzerland }
}