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Dingding Han adjusts an infrared camera pointed at a test subject sitting in front of a black curtain. On a computer screen to her left is a thermal image of the subject. (Photo: Candler Hobbs)

Postdoctoral scholar Dingding Han adjusts a thermal camera capturing an image of Ph.D. student Corey Zheng. Using an advanced processing technique on the raw thermal image, Han, Zheng, and their collaborators can accurately measure body temperature, heart rate, and respiration rate. Their noncontact technology could open new possibilities for vital sign monitoring and early disease detection. (Photo: Candler Hobbs)