Did you know that all imaging system’s sensors e.g. cameras, scanners, smart phones leave a unique digital fingerprint that is retrievable from the image file produced by the system. This process involves the analysis of the sensor’s characteristic noise called the Photo Response Non Uniformity (PNRU). Forensic analysis of a digital file’s PNRU in comparison with other photographs from the
Media Forensics News Blog
Identification of features in both video and photograph (still image) recordings depend on the level of pixel density. Pixel density for Camera Sensors Marketing and advertising is pushing consumers towards higher pixel counts for the video and cameras they sell. CCTV cameras with less than 6MP (6million pixels) are becoming harder to find with 6MP and 8MP becoming standard. However,