Figure 2.

Two developed systems with different augmented reality (AR) tracking techniques (A and B, AR marker system; C and D, the image marker system). A, A user capturing the AR marker with the tablet’s camera; B, Virtual part labels displayed on the specimen when the system detects the AR marker; C, An overall cross‐section image. A rectangular part of the cross‐section image clipped as the marker (inset); D, Virtual part labels displayed on the specimen when the system detects the captured image as the marker. Note that the system allows the user to obtain the AR information without being aware of the marker.