Imaging device identification and detection of image tampering

0450676 - ÚTIA 2016 RIV CZ eng A - Abstrakt
Zitová, Barbara - Šroubek, Filip - Kamenický, Jan - Mahdian, Babak - Novozámský, Adam - Saic, Stanislav - Zita, Aleš - Šíma, Z. - Švarc, P. - Hořínek, J.
Imaging device identification and detection of image tampering.
Abstract book of 7th European Academy of Forensic Science Conference. Praha: Institute of Criminalistics Prague, 2015.
[European Academy of Forensic Science Conference 2015 /7./. 06.09.2015-11.09.2015, Praha]
Grant CEP: GA MV(CZ) VG20102013064
Institucionální podpora: RVO:67985556
Klíčová slova: image forensic * image verification * image forgery
Kód oboru RIV: JD - Využití počítačů, robotika a její aplikace
http://library.utia.cas.cz/separaty/2015/ZOI/zitova-0450676.pdf

Current forensic analysis of digital photographs, videos, and corresponding scanning devices often represents an important part of criminal investigation. Imaging devices such as digital cameras, camcorders, or scanners are nowadays widely used, many criminal acts are captured by them, and, moreover, some of the criminal acts are even directly dependent on them, like for example children pornography or tax evasions. In our research we focused on an identification of imaging devices under investigation and on following verification of an originality of acquired images. The ability to uniquely identify or to exclude certain types or models of imaging devices as possible imaging device is very important for the very investigation process. The Imaging Device Identification provides suggestions about the manufacturer and the given model based on the analysis of sensor noise characteristics and on the image-related EXIF information, which reflects camera producer. The noise characteristics were chosen for their discriminability, stability, and accuracy even under real conditions.
Trvalý link: http://hdl.handle.net/11104/0251966