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Multimedia security

Thanks to a number of developments in signal processing and communication technologies during the last three decades, even unskilled users can now create, store and transfer multimedia objects with astounding ease. Unfortunately, these advances have not only produced an explosion of pirate contents on the Internet, but are also jeopardizing our trust in digital contents, due to the availability of powerful editing tools. In the digital age, having an object is no longer owning it, as seeing is no longer believing. For the past 15 years, our group has been working on different solutions in the field of media security, including watermarking and, most recently, forensics. Our contributions have been published in the best conferences and journals of this area, and group members serve in editorial boards and technical committees.

Three European Projects (Certimark, NoE ECRYPT, and REWIND), as well as a number of regional and national projects, and industry contracts reflect the intense activity of the group in this field. During these years close collaboration with many research institutions has been established, most prominently with the Visual Information Processing and Protection Group (University of Siena), and the Stochastic Information Processing Group (University of Geneva).

Multimedia security

Related Publications

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TitleAuthorsVenueDownload
Beyond Spectral Peaks: Interpreting the Cues Behind Synthetic Image Detection - April 2026Sara Mandelli, Diego Vila-Portela, David Vázquez-Padín, Paolo Bestagini, Fernando Pérez-GonzálezICASSP 2026 - 2026 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)
Technical Report: Expanded Analysis and Experimental Evaluation of Apple’s Synthetic Defocus Noise Pattern - January 2026David Vázquez-Padín, Fernando Pérez-González, Pablo Pérez-MiguélezResearchGate GmbH
Apple’s Synthetic Defocus Noise Pattern: Characterization and Forensic Applications - January 2026David Vázquez-Padín, Fernando Pérez-González, Pablo Pérez-MiguélezIEEE Transactions on Information Forensics and Security
Collusion-resistant Black-box Watermarking in Federated Learning through Weight Relevance Analysis - April 2025Elena Rodríguez-Lois, Fernando Pérez-GonzálezICASSP 2025 - 2025 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)
Exploring Federated Learning Dynamics for Black-and-White-Box DNN Traitor Tracing - September 2024Elena Rodríguez-Lois, Fernando Pérez-González2024 2nd International Conference on Federated Learning Technologies and Applications (FLTA)
Source camera attribution via PRNU emphasis: Towards a generalized multiplicative model - 2023Samuel Fernández-Menduiña, Fernando Pérez-González, Miguel MasciopintoSignal Processing: Image Communication-
Towards Traitor Tracing in Black-and-White-Box DNN Watermarking with Tardos-Based Codes - 2023Elena Rodríguez-Lois, Fernando Pérez-González2023 IEEE International Workshop on Information Forensics and Security (WIFS)
A Critical Look into Quantization Table Generalization Capabilities of CNN-based Double JPEG Compression Detection - October 2022Elena Rodríguez-Lois, David Vázquez-Padín, Fernando Pérez-González, Pedro Comesaña-Alfaro2022 30th European Signal Processing Conference (EUSIPCO)
On the information leakage quantification of camera fingerprint estimates - 2021Samuel Fernández-Menduiña, Fernando Pérez-GonzálezEurasip Journal on Information Security
Prediction Residue Analysis in MPEG-2 Double Compressed Video Sequences - September 2019David Vázquez-Padín, Fernando Pérez-González2019 27th European Signal Processing Conference (EUSIPCO)
Rethinking Location Privacy for Unknown Mobility Behaviors - June 2019Simon Oya, Carmela Troncoso, Fernando Pérez-González2019 IEEE European Symposium on Security and Privacy (EuroS&P)
Video Integrity Verification and GOP Size Estimation via Generalized Variation of Prediction Footprint - November 2019David Vázquez-Padín, Marco Fontani, Dasara Shullani, Fernando Pérez-González, Alessandro Piva, Mauro BarniIEEE Transactions on Information Forensics and Security
Putting the PRNU Model in Reverse Gear: Findings with Synthetic Signals - September 2018Miguel Masciopinto, Fernando Pérez-GonzálezEuropean Signal Processing Conference (EUSIPCO)
Camera Attribution Forensic Analyzer in the Encrypted Domain - December 2018Alberto Pedrouzo-Ulloa, Miguel Masciopinto, Juan Ramón Troncoso-Pastoriza, Fernando Pérez-GonzálezIEEE International Workshop on Information Forensics and Security (WIFS)
Filter design for delay-based anonymous communications - March 2017Simon Oya, Fernando Pérez-González, Carmela Troncoso2017 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)
Smart Detection of Line-Search Oracle Attacks - March 2017Benedetta Tondi, Pedro Comesaña-Alfaro, Fernando Pérez-González, Mauro BarniIEEE Transactions on Information Forensics and Security
A Random Matrix Approach to the Forensic Analysis of Upscaled Images - April 2017David Vázquez-Padín, Fernando Pérez-González, Pedro Comesaña-AlfaroIEEE Transactions on Information Forensics and Security
Back to the Drawing Board: Revisiting the Design of Optimal Location Privacy-preserving Mechanisms - October 2017Simon Oya, Carmela Troncoso, Fernando Pérez-González2017 ACM SIGSAC Conference on Computer and Communications Security (CCS '17)
Random Matrix Theory for Modeling the Eigenvalue Distribution of Images under Upscaling - September 2017David Vázquez-Padín, Fernando Pérez-González, Pedro Comesaña-Alfaro2017 International Tyrrhenian Workshop on Digital Communication (TIWDC)
Is Geo-Indistinguishability what you are looking for? - October 2017Simon Oya, Carmela Troncoso, Fernando Pérez-González2017 on Workshop on Privacy in the Electronic Society (WPES '17)
Design of pool mixes against profiling attacks in real conditions - December 2016Simon Oya, Fernando Pérez-González, Carmela TroncosoIEEE/ACM Transactions on Networking
Fast Sequential Forensic Detection of Camera Fingerprint - September 2016Fernando Pérez-González, Miguel Masciopinto, Iria Gonzalez-Iglesias, Pedro Comesaña-Alfaro2016 IEEE International Conference on Image Processing (ICIP)
An SVD Approach to Forensic Image Resampling Detection - September 2015David Vázquez-Padín, Pedro Comesaña-Alfaro, Fernando Pérez-González2015 23rd European Signal Processing Conference (EUSIPCO)
Do dummies pay off? Limits of dummy traffic protection in anonymous communications - July 2014Simon Oya, Carmela Troncoso, Fernando Pérez-González2014 Privacy Enhancing Technologies Symposium (PETS)
A Least Squares Approach to the Static Traffic Analysis of High-Latency Anonymous Communication Systems - September 2014Fernando Pérez-González, Carmela Troncoso, Simon OyaIEEE Transactions on Information Forensics and Security
Understanding the Effects of Real-World Behavior in Statistical Disclosure Attacks - December 2014Simon Oya, Carmela Troncoso, Fernando Pérez-González2014 IEEE International Workshop on Information Forensics and Security (WIFS)
Localization of Forgeries in MPEG-2 Video through GOP Size and DQ analysis - October 2013Daniele Labartino, Tiziano Bianchi, Alessia De Rosa, Marco Fontani, David Vázquez-Padín, Alessandro Piva, Mauro Barni2013 IEEE 15th International Workshop on Multimedia Signal Processing (MMSP)
Meet the Family of Statistical Disclosure Attacks - December 2013Simon Oya, Carmela Troncoso, Fernando Pérez-González2013 IEEE Global Conference on Signal and Information Processing (GlobalSIP)
Set-Membership Identification of Resampled Signals - November 2013David Vázquez-Padín, Pedro Comesaña-Alfaro, Fernando Pérez-González2013 IEEE International Workshop on Information Forensics and Security (WIFS)
ML Estimation of the Resampling Factor - December 2012David Vázquez-Padín, Pedro Comesaña-Alfaro2012 IEEE International Workshop on Information Forensics and Security (WIFS)
IPTV streaming source classification - December 2012Miguel Masciopinto, Pedro Comesaña-Alfaro2012 IEEE International Workshop on Information Forensics and Security (WIFS)
Detection of video double encoding with GOP size estimation - December 2012David Vázquez-Padín, Marco Fontani, Tiziano Bianchi, Pedro Comesaña-Alfaro, Alessandro Piva, Mauro Barni2012 IEEE International Workshop on Information Forensics and Security (WIFS)
Exposing original and duplicated regions using SIFT features and resampling traces - October 2011David Vázquez-Padín, Fernando Pérez-González2011 International Workshop on Digital Watermarking (IWDW)
Prefilter Design for Forensic Resampling Estimation - December 2011David Vázquez-Padín, Fernando Pérez-González2011 IEEE International Workshop on Information Forensics and Security (WIFS)
On the Role of Differentiation for Resampling Detection - September 2010Nahuel Dalgaard, Carlos Mosquera, Fernando Pérez-González2010 IEEE International Conference on Image Processing (ICIP)
Two-dimensional Statistical Test for the Presence of Almost Cyclostationarity on Images - September 2010David Vázquez-Padín, Carlos Mosquera, Fernando Pérez-González2010 IEEE International Conference on Image Processing (ICIP)
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