:( unfortunately might not be entirely applicable to this problem... unless some measure of blood density and hence probably glucose mix... but at least at this layer of filtering and reasoning, it appears to be about minute amounts of motion... is there something about motion that could denote glucose? trembling maybe? maybe a score could be derived using something that borrows from this technique, but you'd have to put more into it than it seems this technique specifically shows.
I was thinking more skin color or possibly changes in the eye (if I remember right eyes get swollen when blood sugar is high) Honestly, I don't know if there are enough outwardly visible changes for this to even be possible.
But there's a lot of money out there waiting on the person who can figure out a way to use a cell phone do something like this.
Good idea, but apparently much money has been spent on it already. Excellent article on the physics of all things non-invasive (but especially glucose): http://www.mendosa.com/noninvasive_glucose.pdf
Hey thanks, looks like an interesting read
Wow, I didn't realize this was something of a white whale. Still sounds like a fun nerd project though so I might spend some time on it