Forensic use of photo response non-uniformity of imaging sensors and a counter method
Date
2014-01-13
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Optical Soc Amer
Abstract
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.
Description
Keywords
Digital camera identification, Optics, Cameras, Camera identifications, Counter-forensics, Digital image, Forensic science, Imaging sensors, Noise characteristic, Photo response non-uniformity, Source camera identifications, Sensors
Citation
Dirik, A. E. ve Karaküçük, A. (2014). "Forensic use of photo response non-uniformity of imaging sensors and a counter method". Optics Express, 22(1), 470-482.