The "Recalibrate" menu under the Main menu allows you to recalibrate your motion controller after the initial calibration.
Calibration comes in 3 steps. Pulling the trigger button with your arms stretched to your side, triggering the button while you have your arms on the down position near your thighs and adjusting your ground position with your △ button going higher and ○ button going lower.
The camera position can also be reset at any time by pressing the options button on your controller.
Remember that the top section of the Move controller needs to be in view of the camera to maintain perfect tracking.