by Iowa State University, Photonics Online
William Lohry took a seat before a projector-camera combination and offered his best smile. And there, on a nearby computer monitor, was a perfect, but colorless, 3-D image of every line, contour and movement on the face of the senior chemical engineering major from Sioux City. It was like a moving mask, digitally and exactly executed. Song Zhang, an Iowa State University assistant professor of mechanical engineering, remembers the reaction when he first showed his imaging technology to a scientific conference in 2004: “They were shocked by this technology.”
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