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Camera shake could one day be used to help track down people who record footage anonymously. Researchers say that footage captured by wearable cameras
via PetaPixel: http://petapixel.com/2014/12/12/camera-shake-used-identify-person-behind-camera-researchers-say/
By taking a minimum of 12 seconds of video recorded by each person and running it through a computer algorithm, the researchers were able to figure out a unique “motion signature” for the filmers.