Augmented Reality; generally speaking just implies an addition of information to the “world” we experience as reality. However, AR may inhibit a desired assisted nature depending on the task and context. This can be achieved using AR apps that overlay virtual information directly over real-world input. For instance, overlay information may be simple annotations that guide the way to a specific hotel within a skiing resort (popular devices for this appliance is a smart phone). Such overlays can also help users navigate and assemble construction sites (e.g. film sets) and installations. The current examples illustrate how AR Tech. is used to visualize information directly related to objects in “real” space (our environment), this type of AR-Visualization maybe referred to as Location-Based Visualization.
Creating effective Location-Based Visualization is very challenging. Whilst many of the current problems are exclusively paired with AR, others are linked to related visualization areas. This includes information based visualisations and scientific visualisations, which are more prevalent with in the research context. Location-Based Visualization has very wide knowledge base on which we can source information for a solid foundation, solving current and future challenges more efficiently. In his guest lecture, Tatzgern outlined some problems but also offers some insight into possible solutions.
In his talk, Tatzgern focuses on possible solutions for the more challenging areas of Location-Based Visualization, namely problems that limit AR's full potential during application. To be more specific, during the usage of an AR application users desire a good overview of data and dislike the flooding of information on interfaces. To resolve this, new layout techniques can be implemented, which not only reduce the unnecessary flow of data and generate new layouts that are conflict free, but also behave in a cohesive manner, on a long-term bases.
Furthmore, there are major limitations produced by the inherent egocentric point of view from the user's perspective, in regarding data legibility, which reduces overall quality of the User Experience (Human Computer Interaction – HCI).
Tatzgern offers a new technique that enables the user to change to virtual focus points and access multi-perspective displays, in order to justify the egocentric point of view, increasing the quality of user experience. In addition, the technique allows for users to zoom in on their focus point, something which in AR is known to be very difficult.For more infos check out Markus' homepage: markustatzgern.com