Digital camera fingerprinting breakthrough

Digital camera fingerprinting breakthrough

Summary: Binghamton University researchers have come up with a way link digital images to the camera that took the pictures and to detect forged images. The technology can be applied to prosecuting child pornographers.

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TOPICS: Hardware
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Binghamton University researchers have come up with a way link digital images to the camera that took the pictures and to detect forged images. The technology can be applied to prosecuting child pornographers.  The technology is based on the fact that the original digital image is overlaid by a weak noise-like pattern of pixel-to-pixel non-uniformity, according to the press release. The human eye can't detect the patterns, the data can be extracted from cameras by analyzing several images taken from a camera to establish the digital fingerprint. Here's more from the release:
Like actual fingerprints, the digital "noise" in original images is stochastic in nature – that is, it contains random variables – which are inevitably created during the manufacturing process of the camera and its sensors. This virtually ensures that the noise imposed on the digital images from any particular camera will be consistent from one image to the next, even while it is distinctly different.

In preliminary tests, Fridrich's lab analyzed 2,700 pictures taken by nine digital cameras and with 100 percent accuracy linked individual images with the camera that took them.

Topic: Hardware

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5 comments
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  • Very interesting

    It's very interesting that analog artifacts are making it in to the digital world.
    georgeou
    • The Digital World is virtual

      The Digital World is really Analog.
      llundgren9
  • Interesting concept But

    How accurate is it after a "digital camera noise removal" filter is used? Or even a simple media filter?
    I think it might be useful for catching a casual Photog, but not so useful for one that is serious about his perversion.
    llundgren9
  • Another opportunity

    for selling filters and cameras that AREN'T traceable. Just like when Sony stopped making the "nightcam" that could see through clothing. Overnight there were filters made available by entrepreneurs.
    Roger Ramjet
  • Digital camara fingeprinting

    Great application would be for identification photo authentication by including the id of the camera that took the photo on the electronic profile of the id card holder on Driver's licences, Social Security cards, Green cards,
    etc. and/or combined with fingerprint info then encrypted with the id number.
    No more excuses to not punish with BIG $ fines and jail time for repeat offender CEO's, those who employ illegals
    ercrtr9