Abstract
The purpose of this research is to estimate the angular velocity and direction of the rotational axis of the flying disc by inertia sensors. A subject performed throwing by using the flying disc attached the accelerometer. The closed up release and catching point images were acquired using the high speed cameras. The angular velocity was estimated from the centrifugal and angular acceleration. And rotational axis was estimated using gyroscope and accelerometer Estimated angular velocity and rotational axis were compared to the calculated angular velocity by the cameras.
