The Johns Hopkins University Applied Physics Laboratory (APL) in Laurel, Md., has opened the door to using reliable digital video as evidence in court by developing a system that identifies an attempt to alter digital video evidence.
"It’s not too hard to make changes to digital video," says Tom Duerr, APL’s project manager. "But our system quickly and conclusively detects any alterations made to the original tape." For the past two years Duerr has led development of the project for the United States Postal Inspection Service.
"We’re satisfied that our system can accurately detect tampering and now we’re building a working prototype that can be attached to a camcorder," says Nick Beser, lead engineer for the project. “Our authenticator provides proof of tampering when the human eye can’t detect it. You might theorize that a change has been made, but this system takes the theory out of that determination."
Helen Worth | JHU
Between filter bubbles, uneven visibility and transnationality
06.12.2017 | Schweizerischer Nationalfonds SNF
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