Development of an Augmented Reality system using ARToolKit
Development of an Augmented Reality system using ARToolKit
Development of an Augmented Reality system using ARToolKit
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<strong>Development</strong> <strong>of</strong> <strong>an</strong> <strong>Augmented</strong> <strong>Reality</strong> <strong>system</strong> <strong>using</strong> <strong>ARToolKit</strong> <strong>an</strong>d user invisible markers<br />
2.7.3 Education<br />
AR might have the ability to ch<strong>an</strong>ge traditional education methods. As said on the<br />
subject <strong>of</strong> surgical training, it <strong>of</strong>fers <strong>an</strong> effective teaching method. Besides, it c<strong>an</strong><br />
visualize concepts which may lead to <strong>an</strong> improvement in student’s comprehension.<br />
Another import aspect is that interactivity is added to the learning process. This<br />
especially is import<strong>an</strong>t concerning education methods for children.<br />
From the literature there are known a number <strong>of</strong> examples <strong>of</strong> <strong>using</strong> AR in education. It<br />
has been applied to the teaching <strong>of</strong> geometry, spatial relationships between pl<strong>an</strong>ets, <strong>an</strong>d<br />
molecule structures. What these examples have in common is the visualization <strong>of</strong> <strong>an</strong><br />
abstract concept. An AR <strong>system</strong> as a three-dimensional geometry construction tool is<br />
described in [Kau03]. The focus lies on the collaborative aspect between students <strong>an</strong>d<br />
teachers. The <strong>system</strong> has been built <strong>an</strong>d tested in several hardware settings, but here<br />
only is treated one such setup. Users are wearing <strong>an</strong> HMD, <strong>an</strong>d the used interface<br />
elements are a pen <strong>an</strong>d a pad. Tracking <strong>of</strong> both the HMD <strong>an</strong>d the interaction devices is<br />
done by optical tracking <strong>of</strong> retro-reflective markers. Figure 2.41 shows two users in a<br />
collaborative attempt to construct a geometry pro<strong>of</strong>.<br />
2.7.4 Engineering design<br />
Figure 2.41 Collaboration in geometry construction<br />
Nowadays engineering design is usually supported by computer-aided design. Although<br />
this <strong>of</strong>fers great adv<strong>an</strong>tages over traditional engineering, it still suffers from<br />
visualization problems <strong>an</strong>d lack <strong>of</strong> collaboration support. AR could fill in this gap by<br />
<strong>of</strong>fering a way to visualize CAD models that are not only t<strong>an</strong>gible, but also c<strong>an</strong> be<br />
interacted with. Several designers or potential clients c<strong>an</strong> view such models<br />
concurrently from different <strong>an</strong>gles. Usually augmented surfaces in combination with <strong>an</strong><br />
HMD are exploited for the visualization. In [Pen04] is reported a representative AR<br />
<strong>system</strong>. Figure 2.42 shows the collaboration <strong>of</strong> two designers working on a virtual city<br />
pl<strong>an</strong>.<br />
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