Researchers Link Digital Photographs to Source Camera
One of the biggest issues in digital image forensics has always been the ability to identify the source of a digital image. A team of researchers and engineers from Polytechnic University in Brooklyn, New York have developed a very promising technique that addresses this very issue. They have discovered ways to trace the source of digital photos by identifying common and individual properties of cameras. All digital cameras leave a “fingerprint” in the pixels of every image and they can be electronically extracted and analyzed. Forensic scientists may soon be able to trace the image source by the make and model of the digital camera that took the picture.
Early tests have show the technique can identify cameras with a 90% accuracy and further tests are to be carried out to collect more data.
Nasir Memon and his team of researchers have been working on this forensic digital investigations project for the last three years. Their investigation focused on the classification of digital camera models based on demosaicing artifacts. If their techniques prove to be achievable in further experiments, this will make a huge impact in digital forensics and other investigative fields.
More information can be found at the Polytechnic Institute of NYU Information Systems and Internet Security Lab website
Category: Technology
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