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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 1 — Jan. 13, 2014
  • pp: 470–482

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

Ahmet Emir Dirik and Ahmet Karaküçük  »View Author Affiliations

Optics Express, Vol. 22, Issue 1, pp. 470-482 (2014)

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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.

© 2014 Optical Society of America

OCIS Codes
(100.2000) Image processing : Digital image processing
(100.5010) Image processing : Pattern recognition

ToC Category:
Image Processing

Original Manuscript: May 10, 2013
Revised Manuscript: October 6, 2013
Manuscript Accepted: November 28, 2013
Published: January 3, 2014

Ahmet Emir Dirik and Ahmet Karaküçük, "Forensic use of photo response non-uniformity of imaging sensors and a counter method," Opt. Express 22, 470-482 (2014)

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