Northwestern University researchers have invented a new high-resolution camera that can see the unseen-including around corners and through scattering media, such as skin, fog or potentially even the human skull. Called synthetic wavelength holography, the new method works by indirectly scattering coherent light onto hidden objects, which then scatters again and travels back to a camera. From there, an algorithm reconstructs the scattered light signal to reveal the hidden objects. Due to its high temporal resolution, the method also has potential to image fast-moving objects, such as the beating heart through the chest or speeding cars around a street corner. The study will be published on Nov. 17 in the journal Nature Communications. The relatively new research field of imaging objects behind occlusions or scattering media is called non-line-of-sight (NLoS) imaging. Compared to related NLoS imaging technologies, the Northwestern method can rapidly capture full-field images of large areas with submillimeter precision. With this level of resolution, the computational camera could potentially image through the skin to see even the tiniest capillaries at work.
https://phys.org/news/2021-11-holographic-camera-unseen-high-precision.html
From Dr. Vernon Coleman
Earth Newspaper – A Major Source of Information
If you’re looking for a cache of information about covid-19 I suggest you take a look at EarthNewspaper.com which contains over 2,250 articles about covid-19 – it is said to be the largest archive of covid-19 articles and videos online and I believe it. We are fighting a war and EarthNewspaper.com is a valuable asset in the war – an asset too often under-estimated. The site’s tagline is `All the Honest News Fit to Publish’. If you’re looking for a way to help the Resistance Movement I suggest you subscribe and make a donation to EarthNewspaper.com
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