1. Optical coherence tomography holds promise for conserving art

    Optical coherence tomography holds promise for conserving art
    OCT has migrated successfully from medical imaging to materials science, where it is used online to monitor varnish removal from paintings. Noninvasive examinations of human patients and art objects share more than the important modus operandi of ‘do no harm.’ Soon after medical x-rays were discovered, they were applied to inspect the underlying layers of paintings. More recently, that extended to the newer modality of x-ray tomography. Now, optical coherence tomography (OCT), which acquires and processes optical signals to produce high-quality 3D images, has entered the picture. Medical OCT was first described in 1991,1 and reports of its use ...
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