Holographic Camera Scatters Light to See Around Corners
A team of researchers at Northwestern University has invented a new high-resolution camera that can see around corners and through scattering media, which can be anything from skin to fog.
The research was published on November 18 in the journal Nature Communications.
The new method is called synthetic wavelength holography, and it indirectly scatters coherent light onto hidden objects. The coherent light then scatters again before traveling back to a camera.
The next step is for an algorithm to reconstruct the scattered light signal to reveal the hidden objects. This new method could also image fast-moving objects, such as the beating heart though the chest, thanks to its high temporal resolution.
Non-line-of-sight Imaging
There is a name for this relatively new research field that involves imaging objects behind scattered media: non-line-of-sight (NLoS) imaging. The new method developed by the research team can rapidly capture full-field images of large areas, and it does so with extreme precision and accuracy.
See the full story here: https://www.unite.ai/holographic-camera-scatters-light-to-see-around-corners/
