学术报告--Advances on Image Forensics

报告人：Alessandro Piva, University of Florence, Italy
报告题目： Advances on Image Forensics
时间：4月12日周二 上午 9:30
地点：九教北609

【Abstract】When observing a visual content on a web site, often people do not realize that such media have undergone a long series of transformations before appearing in their current form. In particular, the authenticity of visual contents is often overestimated: just by looking around, it is evident that creating fake digital contents is very common today, since many commercial and open-source software allow to inexpert users editing images and videos in a few minutes.  image forensics is a relatively new discipline that seeks to demonstrate the authenticity of a given visual content: the basic idea behind it is that any processing applied to a digital content leaves subtle traces, that can be analyzed to uncover the digital history of the object. Within the most useful traces that can be used for imagetamperingdetection, major focus will be given to traces relying on specific properties of the compression and of the demosaicking process.

【教授简介】pivaAlessandro Piva is Associate Professor at the Department of Information Engineering of the University of Florence, and lecturer for the course “Image Processing and Protection” of the Laurea Degree in Telecommunications Engineering of the University of Florence. He is also Head of Forlab, the Laboratory of Forensic Sciences of the University of Florence.

Alessandro Piva received his Ph.D. degree in “Computer Science and Telecommunications Engineering” from the University of Florence on 1999. From 2002 until 2004 he was Research Scientist at the National Inter-university Consortium for Telecommunications (CNIT). Since 2005 he was Assistant Professor at the University of Florence, and since 2014 he is Associate Professor.

His research interests lie in the areas of Information Forensics and Security, and of Image and Video Processing. In the first topic, he was interested in data hiding, signal processing in the encrypted domain, image and video forensic techniques. In the second area, he was interested in the design of techniques for Cultural Heritage, medical and industrial applications. In the above research topics he has been co-author of more than 40 papers published in international journals and 100 papers published in international conference proceedings. He holds 3 Italian patents and an International one on watermarking.

He is IEEE Senior Member, and he was IEEE Information Forensics and Security TC Member; he serves as Associate Editor of the IEEE Trans. on Multimedia, IEEE Trans. on Dependable and Secure Computing, and of the EURASIP Journal on Information Security, and he served as AE of the IEEE Trans. on Information Forensics and Security and of the IEEE Trans. on Circuits and Systems for Video Technology.

He was Technical Co-Chair of IEEE MMSP2004 and of IH&MMSec2014, Publications Chair of IEEE WIFS 2013, and Publications Co-Chair of IEEE ICASSP2014. He also was Co-Organizer of the First IEEE SPS Italy Chapter Summer School on Signal Processing, held on 2013, and co-Organizer of the First IEEE IFS-TC Image Forensics Challenge. He was Keynote Speaker at Tenth International Conference on Intelligent Information Hiding and Multimedia Signal Processing, 2014 and  at 14th International Workshop on Digital-forensics and Watermarking (IWDW 2015).

Webpage: http://lesc.det.unifi.it/en/node/177