1. OCT Captures Impressionistic Brushstrokes

    OCT Captures Impressionistic Brushstrokes

    Art conservators have enlisted a bevy of imaging techniques, including optical coherence tomography (OCT), to study valuable paintings and ensure their long-term preservation. Even though OCT can generate 3D images of scattering media with micrometer resolution and without destroying its subject, the method’s narrow field of view limits its ability to examine broad regions of an artist’s canvas. Researchers at two U.S. universities have built a hybrid scanning platform that couples OCT with a sampling algorithm to create 3D reconstructions of impressionist oil paintings (Appl. Opt., doi: 10.1364/AO.390326 ). Besides helping art historians to understand ...

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