handheld augmented reality

Augmented Reality Anywhere and Anytime   


   Social Augmented Reality

   Information Presentation

   Real-Time Self Localization

   Structural Modelling

   AR Graphics

   AR Navigation

   Augmented Reality Games

   Past Projects



   Hybrid SLAM

   Panorama SLAM

   Planar SLAM

   Model-Based Tracking

   Marker-Based Tracking


Software Libraries

   Studierstube ES

   Studierstube Tracker










   Student projects


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The Handheld Augmented Reality
Project is supported by the
following institutions:



Christian Doppler Forschungsgesellschaft


Graz University of Technology




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Tracking and Augmenting Business Cards
using Studierstube Tracker


Markers is usually expected to be surrounded by black borders and containing a black and white pattern or image. Naturally the marker's border can be made very thin (down to zero) if the image inside the marker is rather dark. Even more the marker content does not have to be black and white or grayscale since the tracker converts to grayscale internally anyways.

The image on the right shows an example business card that can be tracked robustly.

The following video shows tracking of a business card using an unmodified version of Studierstube Tracker, configured to use a non-square marker with a very thin border (if the border is actually set to 0.0 white color tends to spill into the unwarped area thereby decreasing the detection quality). The video was recorded on an unmodified Asus P552W mobile phone running Studierstube ES.








Tracking a business card on a mobile phone















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