Forensic use of photo response non-uniformity of imaging sensors and a counter method

Dirik A. E., Karaküçük A.

OPTICS EXPRESS, cilt.22, sa.1, ss.470-482, 2014 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 22 Sayı: 1
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1364/oe.22.000470
  • Dergi Adı: OPTICS EXPRESS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.470-482
  • Bursa Uludağ Üniversitesi Adresli: Evet

Özet

Analogous to use of bullet scratches in forensic science, the authenticity of a digital image can be verified through the noise characteristics of an imaging sensor. In particular, photo-response non-uniformity noise (PRNU) has been used in source camera identification (SCI). However, this technique can be used maliciously to track or inculpate innocent people. To impede such tracking, PRNU noise should be suppressed significantly. Based on this motivation, we propose a counter forensic method to deceive SCI. Experimental results show that it is possible to impede PRNU-based camera identification for various imaging sensors while preserving the image quality. (C)2014 Optical Society of America