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Back in around 2008 at the University of Utah I participated in a study someone was doing about detecting touches on any surface using a camera. When you touch
by pontifier 3y ago
Back in around 2008 at the University of Utah I participated in a study someone was doing about detecting touches on any surface using a camera. When you touch a surface, the blood under your fingernails moves, and that movement can be detected with a camera and turned into a usable signal. I think they were even able to get force and direction as well. It was very interesting, but I haven't seen or heard anything about that method since.
I did, and still do, think it's a great idea.
- tweetle_beetle 3y agoI can't picture how it would be easier to detect blood under fingernails than movement of fingers. Is this some kind of device attched directly to the fingers, rather than detecting collisions with the surface "remotely"?
- summarity 3y agoMotion amplification makes this feasible. Not sure about easy in any case. http://people.csail.mit.edu/mrub/vidmag/ http://people.csail.mit.edu/mrub/vidmag/
- circuit10 3y agoI think I can see the colour change without any of that when I touch my phone screen, my fingernails look more red when I’m pressing down