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surroundings might require a substantial mental
effort. Schinke et al, 2010, suggests using arrows
embedded in the AR view to point at the
surrounding off-screen POIs, which can make the
task of interpreting such information much less
demanding for the user.
4 SUMMARY
Although the concept of AR was first developed
over four decades ago, wide availability of mobile
devices with adequate processing power and a
multitude of sensors is attracting an increased
interest to handheld AR applications. However,
many ongoing research projects and off-the-shelf
handheld AR solutions limit themselves to
leveraging only the user geographic location and
orientation information. Today, smartphones are
already quite capable of providing tracking services
using computer vision algorithms, fusing different
methods of location tracking for robust indoor and
outdoor navigation, providing tools for easy on-
device content creation and sharing, leveraging user
and location context, using heterogeneous sources of
POI and other data, and providing more unobtrusive
user interaction than what is currently offered by the
existing handheld AR applications.
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