In a story in the April issue, the magazine’s editors highlighted the research of
Kevin Kelly, assistant professor of electrical and computer engineering, and Richard Baraniuk, the Victor E. Cameron Professor of Electrical and Computer Engineering.
Using new mathematics and a silicon chip covered with mirrors the size of bacteria, Kelly and Baraniuk built a working prototype camera using a digital micromirror device, or DMD, and a single photodiode, which turns light into electrical signals. Most digital cameras have millions of photodiodes, or megapixels, on a single chip. The writer, Kate Greene, says:
“Kelly suspects that we could see the first practical applications of compressive sensing within two years, in MRI systems that capture images up to 10 times as quickly as today's scanners do. In five to ten years, he says, the technology could find its way into consumer products, allowing tiny mobile-phone cameras to produce high-quality, poster-size images. As our world becomes increasingly digital, compressive sensing is set to improve virtually any imaging system, providing an efficient and elegant way to get the picture.”
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