Can anyone give comparison between the positional accuracy of 6 axis (without magneto) vs 9 axis?
I plan to built motion capture glove (hand tracking), I’m going to use the glove for gripping VR objects..
but I can’t quite grasp whether absolute yaw (i.e magnetometer) is indeed essential for hand tracking.
The hand movement is as expected when the person is in sitting position.
A the very least I know magnemoter helps increase accuracy.. but I'm trying to figure out how significant will it does in my application. :shifty:
(a)The position of your hand is determined by three coordinates
(b)the speed that your hand is moving is described by a vector with three coordinates.
(c)the orientation of your hand is described by three local axes.
(d)and then you might be considering rotation of your hand as well
thats potentially 12 numbers, and when people refer to 6, or 9, it may be different subsets of those.
A gyro is going to tell you (d),
A magnetometer is going to tell you (c)
An accelerometer is going to tell you the rate of change of (b)
And (a) you have to determine by some kind of dead reckoning.