MIT's is definitely the coolest and best I've seen though, I don't think I've seen anything like it. Everyone else's is a light-based scanner or algorithms to 3D-ify mostly flat imaging. This amazes me beyond no end.
MIT develops a portable, high-resolution 3D imaging solution
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Re: MIT develops a portable, high-resolution 3D imaging solution
#12You could build one with an LED, a mirror, a camera, a piezo stage, a 50/50 beam splitter and an objective.
Re: MIT develops a portable, high-resolution 3D imaging solution
#13Temperature: add something that changes color based on temperature.
Wetness: add some microchannels and watch them as they wick moisture into the material
Pain: introduce small ink packages that will burst if the material is damaged.
Vibration: add a microphone to detect pressure changes in the touched object, or if your cameras are fast enough just watch the surface as it moves up and down.
This could also be simply expanded to senses we don't have: Magnetism (ferrous particles), radiation(scintillation), PH level(litmus), detecting the presence of any chemical directly(specialised receptor), etc... this is revolutionary.
Using cameras behind a gel is a simple, non-obvious(to me), solution to the contact sensing problem. This is going to be used everywhere.