A. De Rosa, A. Piva, M. Fontani, M. Iuliani,
“Image counter-forensics based on feature injection““,
in Proceedings of ICCST 2014, IEEE International Carnahan Conference on Security Technology, Oct 2014
With the increasing diffusion in our life of digital audio and visual contents, the investigation on multimedia objects is acquiring more and more interest within the…
M. Iuliani, S. Rossetto, T. Bianchi, A. De Rosa, A. Piva, M. Barni,
“Tecnologie di Image Forensics per l’Investigazione di Immagini in Scenari Reali“,
in IISFA Memberbook 2014 DIGITAL FORENSICS
La Image Forensics mette a disposizione molte tecnologie per studiare la storia delle immagini digitali. I risultati prodotti dalla comunità scientifica sono però spesso ottenuti…
A.De Rosa, M.Fontani, M.Massai, A.Piva, M.Barni,
“Second-Order Statistics Analysis to Cope With Contrast Enhancement Counter-Forensics“,
in IEEE Signal Processing Letters, vol. 22, n. 8, pp 1132-1136, Jan 2015
Image forensic analysis for the detection of contrast enhancement and other histogram-based processing, usually relies on the study of first-order statistics derived from image histogram. Methods based…
A. Gironi, M. Fontani, T. Bianchi, A. Piva, M. Barni,
“A video forensic technique for detecting frame deletion and insertion““,
in Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing, May 2014, Florence, Italy
We propose a method for detecting insertion and deletion of whole frames in digital videos. We start by strengthening…
M. Iuliani, S. Rossetto, T. Bianchi, A. De Rosa, A. Piva, M. Barni,
“Image counter-forensics based on feature injection““,
Proceedings of SPIE 9028, Media Watermarking, Security, and Forensics, Feb. 2014, San Francisco, California, USA
Starting from the concept that many image forensic tools are based on the detection of some features revealing a particular aspect…
T. Bianchi, A. De Rosa, M. Fontani, G. Rocciolo, A. Piva
“A Forensic Tool for Investigating Image Forgeries“,
EURASIP Journal on Information Security, no. 2014:10, 2014
In this work, by exploiting the traces left by double compression in the statistics of quantized modified discrete cosine transform coefficients, a single measure has been derived that allows…
M. Fontani, T. Bianchi, A. De Rosa, A. Piva, M. Barni,
“A Forensic Tool for Investigating Image Forgeries“,
International Journal of Digital Crime and Forensics, vol. 5, Oct. 2013, pp. 15-33
Images have always been considered a reliable source of evidence in the past. Today, the wide availability of photo editing software urges the authors…
M. Fontani, A. Bonchi, A. Piva, M. Barni,
““Countering anti-forensics by means of data fusion““,
Proceedings of SPIE 9028, Media Watermarking, Security, and Forensics, Feb. 2014, San Francisco, California, USA
In the last years many image forensic (IF) algorithms have been proposed to reveal traces of processing or tampering. On the other hand, Anti-Forensic (AF)…
P. Ferrara, T. Bianchi, A. De Rosa, A. Piva,
“Reverse engineering of double compressed images in the presence of contrast enhancement“,
Proceedings of IEEE 15th International Workshop on Multimedia Signal Processing, Sept. 2013, Pula, Sardinia, Italy
A comparison between two forensic techniques for the reverse engineering of a chain composed by a double JPEG compression…
T. Bianchi, A. De Rosa, M. Fontani, G. Rocciolo, A. Piva,
“Detection and classification of double compressed MP3 audio tracks““,
Proceedings of the 2013 ACM Information Hiding and Multimedia Security Workshop, July 2013, Montpellier, France
In this paper, a method to detect the presence of double compression in a MP3 audio file is proposed. By…
M. Fontani, T. Bianchi, A. De Rosa, A. Piva, M. Barni,
“Localization of forgeries in MPEG-2 video through GOP size and DQ analysis“,
IEEE Transactions on Information Forensics & Security, vol. 8, no. 4, April 2013, pp. 593-607
In this work, we present a decision fusion strategy for image forensics. We define a framework that exploits information provided by…
P. Ferrara, T. Bianchi, A. De Rosa, A. Piva,
“Localization of forgeries in MPEG-2 video through GOP size and DQ analysis“,
Proceedings of the 2013 IEEE International Workshop on Multimedia Signal Processing, Sept. 2013, Pula, Sardinia, Italy
This work addresses forgery localization in MPEG-2 compressed videos. The proposed method is based on the analysis of…