augmented reality - Improving iPhone AR (Tool)Kit by using the Gyroscope -

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i'm using iphone ar kit , fork, iphone ar toolkit, i'm trying improve user experience using gyroscope when it's available.

for of used kits, have idea on how ? first thought gyroscope yaw more precise azimuth value.

so have questions :

  • does used ar kit linked above, , have thoughts on including gyroscope in ?
  • is idea mix gyroscope , compass data more precise value of azimuth ?

gyroscopes measure rotational velocity, gyro output in change in yaw per second (e.g rad/s) rather absolute yaw. there various methods trying use gyros "dead reckoning" of orientation, in practice while they're accurate on short term, integrating gyro read-outs determine orientation "drifts" significantly, have keep recalibrating against absolute measure.

it trivial use gyro interpolate between compass readings, or calculate bearing based on gyro short fast motions while compass catches up, fusing compass , gyro isn't trivial. there's a talk here on integrating sensor android might start. standard method of fusing sensors use kalman filter, there's introduction here. they're involved tools, need model of sensor errors example.


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