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Flickering lights could help fight misinformation
A group of Cornell computer scientists have developer a new method for combatting doctored footage.
The watermarking technique, called “noise‑coded illumination,” hides verification data in light itself to help investigators spot doctored videos. If a viral clip from that press conference later circulates with what appears to be an inflammatory statement, investigators can run it through a decoder, and by checking whether the recorded light codes line up, could determine whether the footage was doctored. While the scientists acknowledge that rapid motion and strong sunlight can hinder the technique’s efficacy, they are bullish on its utility in settings like conference‑room presentations, television interviews or lecture‑hall speeches.
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