2022-08-252022-08-252014-01-13Dirik, A. E. ve Karaküçük, A. (2014). "Forensic use of photo response non-uniformity of imaging sensors and a counter method". Optics Express, 22(1), 470-482.1094-4087https://doi.org/10.1364/OE.22.000470https://aperta.ulakbim.gov.tr/record/64407#.YnOI39pByM8http://hdl.handle.net/11452/28351Analogous 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.eninfo:eu-repo/semantics/openAccessDigital camera identificationOpticsCamerasCamera identificationsCounter-forensicsDigital imageForensic scienceImaging sensorsNoise characteristicPhoto response non-uniformitySource camera identificationsSensorsAlgorithmsArtifactsFirearmsForensic ballisticsImage enhancementPattern recognition, automatedPhotometrySignal-to-noise ratioTransducersArticle0003305793000692-s2.0-8489266072047048222124515007OpticsDigital Image; Tampering; Discrete Cosine TransformsAlgorithmArticleArtifactAutomated pattern recognitionBallisticsClassificationEquipmentFirearmImage enhancementMethodologyPhotometrySignal noise ratioTransducer