iOS Gesture recognition utilizing accelerometer (and gyroscope)

Question

I would like to detect gestures on an iOS device using the accelerometer and perhaps the gyroscope. The Application should detect movements like drawing a circle or a rectangle in the air. I've found several papers on gesture recognition on iPhones but there is no actual code which I could use. I wonder if there is a library which could assist me in approaching this goal in any way? If not, I have to start building one on my own! :) Thanks in advance! Markus

Answer 1

You'll probably have to develop those functions on your own. The built in gesture recognition features are all for touch based events.

Answer 2

I related question is here, it may help little.

Beside the paper mentioned there, you might find interesting this paper too, page 363, 5. boundary conditions and page 364. I am curious how DTW works for your application. Good luck anyhow!