Nowadays, digital imaging devices have gained a prominent role in everyone’s life. Mobile smart phones, tablets, digital cameras and camcorders have become progressively cheaper and affordable for every one; this goes hand in hand with the growing interest for sharing moments of our life using social networks (e.g., Facebook, Flickr) and Internet in general. As a result, everyone of us is continuously leaving visual “traces” of his/her presence and life on the Internet. Under the proper legal framework, law enforcers and forensic investigator can access this data (e.g., undercover operations) in case it is relevant for investigations.

In this paper, we present a novel usage of the SPN for digital image forensic purposes. We propose to exploit SPN fingerprints to find social network accounts belonging to a certain person of interest, who has shot a given, known photo. We name this task Picture to-Identity linking.

http://pralab.diee.unica.it/sites/default/files/Satta_VISAPP2014_0.pdf