alt Hacker NewsI built a mmWave material classification radar
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Very cool! Six years ago I worked on a mmWave (76-81GHz) imaging radar with a Rotman lens Tx and Rx. Designed as a LiDAR replacement, but we could see pipes in walls, or detect concealed weapons at ~1km.
Very cool idea.
I'm sure this can be annoying when people do this, but I can't help myself lol. I wonder if you could operate in a different modality and find discontinuities in material properties rather than use it as a classifier. For some reason skin cancer detection popped into my head, but general purpose inspection/detection cases for any discontinuities might be pretty helpful. Depending on the resolution/size of the field it's inspecting a realtime camera overlay might be interesting for correlation sake.
So thankful the author posted this. We often learn more from failure than success. Learning from the failures of others is how we can move forward. The lessons learned at the bottom of the article are gold.
My dream (actually one of them) is to one day build a wall-e that can collect trash from the environment. This is exactly what I would need for it!
Kinda crazy that it worked but got no commercial interest. Hopefully someone suitable here sees it and can intervene
Does it also work through other materials. i.e. through a drywall etc.
Hugged to death but I'd love to see this!
love the background music in combination with the flying fishes wallpaper in the first video haha
very cool project
That's awesome. I built one for a capstone back in the day and know how tough it is to get onboarded. Kudos.
> however the big question to answer was : is the radar sensitive enough to tell the difference consistently between a material, and it's same counterpart with asbestos shards and at what concentration ?
Unless I missed something, it seems the "POC" device still made no effort to address this, which is the core feature — it just demonstrated classifying some other common materials. If that's true then the conclusions make no sense to me - why would customers be lining up if you still haven't proven the actual concept?