PRINCETON, N.J., April 6 (UPI) — Princeton University scientists say they’ve developed a technology that turns noise into vision, revealing images of hidden objects.
Researchers from the university’s engineering school said their technique might allow pilots to peer through fog and doctors to see more precisely into the human body without surgery.
“Normally, noise is considered a bad thing,” said Assistant Professor Jason Fleischer. “But sometimes noise and signal can interact, and the energy from the noise can be used to amplify the signal. For weak signals, such as distant or dark images, actually adding noise can improve their quality.”
He said the ability to boost signals could potentially improve a broad range of signal technologies, including sonograms physicians use to visualize fetuses and the radar systems pilots use to navigate through storms and clouds.
The scientists said their technology might also be applied to steganography — the practice of masking signals for security purposes.
The study that included graduate student Dmitry Dylov was funded by the U.S. Energy Department, the National Science Foundation and the U.S. Air Force. The findings were reported in the early online March 14 edition of the journal Nature Photonics.
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