1. Forensic Problems, Optical Solutions

    Forensic Problems, Optical Solutions

    Since first hitting the scene in 1991, optical coherence tomography (OCT) has become a leviathan among biomedical imaging techniques, due to the method’s nondestructive ability to resolve layers of tissue. In ophthalmology, especially, OCT has been revolutionary, imaging retinal layers noninvasively through an approximately one-inch-thick watery window—the human eye. Now, U.K. researchers in applied optics, forensic science and the document-examination industry have joined forces to apply OCT to the high-resolution subsurface analysis of multilayered identification documents (Sci. Justice, doi: 10.1016/j.scijus.2020.12.001 ). The method can reportedly detect forged passports or national ID cards ...

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