Hello All,
I am Somatixs CTO and we are based in Israel/New York.
We are automatically detecting smoking gestures from smartwatch accelerometer and gyroscope signals.
I encountered an obstacle and hoped you could help introduce me to someone in your company that can help.
I put 2 LG urbane smartwatches (with Invensense sensors inside) on my wrist and perfomed smoking gestures. I hoped to get fairly similar signals from both devices but didn't.
In some areas the accelerometer signals are very similar while in other the signals are very different.
attached is a plot of the 2 signals. notice that the x axis is in seconds. Also notice thta at some areas the signals converge while in other they divarge.
Inline image 1
All areas with constant acceleration are areas where i did not move my hand.
I am trying to understand this phenomenon. Usually there is a fairly constant bias for each signal. In this case the bias changes very quickly and with strict correlation to the signal.
Any help will be greatly appreciated.