Hey all, I have a project in mind that requires tracking a persons head relative to their torso, and was wondering if anyone had any suggestions as to the best way to go about doing it.
For what I'm doing, I need access to both the relative pitch and yaw of the users head without an external point of reference, as the end result will be wearable. Currently, the best idea I can come up with involves using a gyro on the head and torso, then calculating the difference.
It sounds a lot like the problem of finding the attitude of a flying drone, and you probably need a similar solution (i.e. some very clever processing of the input from an gyro and accelerometer).
If you know the person will be stationary or close to stationary then you may be able to get away with a simpler accelerometer-based tilt sensor.
Sadly, the person is expected to be mobile - Accelerometers were my first idea, but movement rather nullifies that approach. The drone analogy, I must say, is ingenious. I didn't even think of approaching this project from that direction, but I can see why approaching it from that direction may be of benefit.
All in all, that is another thing to attempt. This is going to be a fun project!
