Researchers in UC Santa Barbara have proposed a new foundation that can enable high-quality imaging of still objects with only WiFi signals.
Geometrical Theory of Diffraction
“We then develop a mathematical framework that uses these conic footprints as signatures to infer the orientation of the edges, thus creating an edge map of the scene,” said Yasamin Mostofi, UC Santa Barbara professor.Writings on the wall The team ran 30 experiments for imaging uppercase English letters. Their approach was able to capture the details of the letters pretty well.
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