ARiSE's main component is the Augmented Reality Teaching Platform (ARTP). It physically consists of 3-4 ARTP seats for a student group and a table with a real object in front of the students. An ARTP seat itself consists of a networked computer, a projector, a tilted mirror, a projection screen, a see-through mirror, tracking cameras, loudspeakers, and finally a stand to hold the equipment mentioned (see: figure 1). ARTP uses the active stereo/ active shuttering display technique. The students wear shutter glasses and they have an interaction device each. In general, the content for the exercises and classed is created in our Virtual Reality Framework Avango combined with a new MR/AR authoring tool.
Figure 1 shows the Augmented Reality Teaching Platform (ARTP) in a typical set-up with 4 ARTP seats.
Figure 1: ARTP with 4 seats
The animation attached shows the following scenario: A class of students in a school has to learn about the human digestive tract in a biology lesson. The students will form a group around our ARTP. A normal plastic model will sit in the middle on a table while dynamic generated pictures illustrate the digestive process. The teacher can either explain or stand in the back to answer questions. Students can learn about the digestive process, the functionality of organs and their arrangements by watching the show, but also by intervention. They can watch different virtual food to be processed, inflict malfunction on certain organs, and they can virtually dissect the whole system. So the students influence the virtual demonstration and through this, the visual presentation of the model. Having understood the principles, they can download their generated protocol data and take the virtual models home for their homework. The assignment could be to answer questions about the digestive process, using the data and images from the virtual model generated in class.
Animation 1 (AR.exe): Human Digestive Tract
Due to exhibition floor constraints at ISMAR 06, the demo will show the Augmented Reality Teaching Platform with one seat only (see: figure 2).
Figure 2: ARTP seat
In order to draw a big crowd and to attract experts and laymen in the MR/AR field, the following scenario for the demonstration is proposed: We take the well-know labyrinth game as an example to show the characteristics, strengths, and advantages of the ARiSE approach
Figure 3: Labyrinth Game
In front of a user, on the table, there will be a wooden labyrinth game. This game is made of a wooden box with two knobs that can tilt the top surface where the labyrinth is located. We have replaced this wooden labyrinth with a flat surface and a marker and can therefore augment a virtual labyrinth on it. This virtual labyrinth has much more features than the real one; there are slides, springs etc. There are also sound effects making the whole experience even more attractive. The whole game is well-known, very intuitive, and easy to grasp, which makes it a perfect demonstration of MR/AR technology at ISMAR 06.
ARiSE is unique for the following reasons: