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Camera System Images Weak Targets by Negating Glare

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PASADENA, Calif., Oct. 31, 2016 — Coherence gated negation (CGN) is a novel imaging method that uses destructive optical interference to suppress glare and allow imaging of a target that may be hidden behind a scattering medium such as fog or clouds. In contrast to conventional coherence gating methods, which “gate in” the target optical signal, CGN works by actively “gating out” the unwanted optical contributions. Destructive interference cleans up an image to make text legible. Courtesy of Edward Zhou/Caltech. Researchers at the California Institute of Technology (Caltech) created the device,...Read full article

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