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Augmented reality (AR) marker used in ARToolKit (version 2) and an example of a displayed virtual object. A, Example of an AR marker that has a square bold frame and a pattern in the center to distinguish it. The pattern information of the AR marker is pre‐registered in the system. A user captures the AR marker with the device camera; B, Virtual object displayed on the AR marker when the captured image is satisfactorily detected by the system.
