[Cyborg] medical mirror
Eric Boyd
mrericboyd at yahoo.com
Sat Oct 9 15:21:06 UTC 2010
http://www.youtube.com/watch?v=LyWnvAWEbWE&feature=player_embedded
Basically, using nothing other than a webcam (1.3MP, 15 Hz!), they can
read your heart rate. Then they built that into a "medical mirror", so
you can see your heart beat in the morning when you brush your teeth :-)
I found one of his papers about it online, full text:
Non-contact, automated cardiac pulse measurements using video imaging
and blind source separation
http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-10-10762
Looks to me like the big breakthrough here is the motion independence,
which they got through a combination of face recognition and cropping
and separating the video into it's three component colors. They claim
an average error from the reference pulseox reading of less than 1 BPM
even with movement, that's pretty impressive.
Anyone want to write a laptop app which would just keep the webcam on
all the time and log your heartbeat?
Eric
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