Scientists have found a way for machines to see through clouds and fog
Whether it’s a robot working in a disaster area, a self-driving car running around a city, a satellite looking down through space, it’s very useful to have a machine that can see through clouds, fog, fog. Scientists may have made the best system yet.
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Tau.Neutrino said:
Scientists have found a way for machines to see through clouds and fogWhether it’s a robot working in a disaster area, a self-driving car running around a city, a satellite looking down through space, it’s very useful to have a machine that can see through clouds, fog, fog. Scientists may have made the best system yet.
more…
I’ve been hoping for this for years, and slightly dreading it, too.
It is so enormously useful.
But useful for the military as well, a complete game changer.
mollwollfumble said:
Tau.Neutrino said:
Scientists have found a way for machines to see through clouds and fogWhether it’s a robot working in a disaster area, a self-driving car running around a city, a satellite looking down through space, it’s very useful to have a machine that can see through clouds, fog, fog. Scientists may have made the best system yet.
more…
I’ve been hoping for this for years, and slightly dreading it, too.
It is so enormously useful.
But useful for the military as well, a complete game changer.
I’ve looked at clouds from both sides now.
sarahs mum said:
I’ve looked at clouds from both sides now.
through clouds.. ;)
Tamb said:
Be nice for my satellite internet to not go off when there’s heavy cloud.
It’s been known for a long time how to do that. Low frequency radio waves (100s of MHz) get through cloud and rain a lot better than high frequency (> 1 GHz). The higher the frequency, the worse the penetration. So, of course, satellite internet uses high frequency. :-(
Tau.Neutrino said:
Scientists have found a way for machines to see through clouds and fogWhether it’s a robot working in a disaster area, a self-driving car running around a city, a satellite looking down through space, it’s very useful to have a machine that can see through clouds, fog, fog. Scientists may have made the best system yet.
more…
> The newly developed system works through algorithms that measure the motion of individual light particles or photons that are fired in rapid pulses from a laser, and use them to reconstruct objects that are obscured or hidden by the human eye. Officially known as confocal diffusion tomography.
I need to look deeper into this.
https://www.nature.com/articles/s41467-020-18346-3
Three-dimensional imaging through scattering media based on confocal diffuse tomography.
“The reduced scattering and absorption coefficients of the scattering layer (comprising a 2.54-cm thick piece of polyurethane foam) are calibrated by illuminating the scattering layer from one side using the pulsed laser source and measuring the temporal response of the transmitted light at the other side”.
I see a slight problem here. You need to get through the rain in order to see through it. ie. you have to measure properties of the rain from the far side before seeing through it from this side.
mollwollfumble said:
Tau.Neutrino said:
Scientists have found a way for machines to see through clouds and fogWhether it’s a robot working in a disaster area, a self-driving car running around a city, a satellite looking down through space, it’s very useful to have a machine that can see through clouds, fog, fog. Scientists may have made the best system yet.
more…
> The newly developed system works through algorithms that measure the motion of individual light particles or photons that are fired in rapid pulses from a laser, and use them to reconstruct objects that are obscured or hidden by the human eye. Officially known as confocal diffusion tomography.
I need to look deeper into this.
https://www.nature.com/articles/s41467-020-18346-3
Three-dimensional imaging through scattering media based on confocal diffuse tomography.
“The reduced scattering and absorption coefficients of the scattering layer (comprising a 2.54-cm thick piece of polyurethane foam) are calibrated by illuminating the scattering layer from one side using the pulsed laser source and measuring the temporal response of the transmitted light at the other side”.
I see a slight problem here. You need to get through the rain in order to see through it. ie. you have to measure properties of the rain from the far side before seeing through it from this side.
I had been hoping that this was about using differential light intensity at multiple wavelengths followed by blind deconvolution. But this is singl;e wavelength.
The time delay information is useful too, of course, ignore any light that bounces back too fast.