I. INTRODUCTION
Augmented Reality (AR) has become one of the most
popular topics in academic research fields and the state of
the art interface design of innovative mobile learning
application system development. The widely accepted
definition of Augmented Reality is given by Azuma [1] [2];
Augmented Reality allows the user to see the real world,
with virtual objects superimposed upon or composited with
the real world. AR supplements reality, rather than
completely replacing it, which means it would appear to the
user that the virtual and real objects coexisted in the same
space. Moreover, AR requires much more accurate position
tracking combined with precise orientation tracking, can
provide a powerful user interface, for example, with
adaptive contents display for location-aware mobile
environment, to interact directly with the electronically
enriched world around us.