Graphics and Simulation for Augmented Reality
In Augmented Reality virtual content is embedded in the real-world. A major topic in AR Graphics is visual coherence.
The goal of visual coherence is to create virtual content which becomes indistinguishable from real-world content.
This is especially interesting from a perceptional point of view where the user experience is influenced by the
visual representation. Moreover creating realistic renderings can also be used for automatic evaluation. For example a simulation
of camera views can help to benchmark AR techniques such as tracking and to improve them.
The following projects deal with two topics. The first project is about simulating
tracking targets for a detection benchmark. The results are further used to improve the physical
tracking target object itself. The other project introduces a complete Augmented Reality
stage set which is available in a digital form but also in a physical form. The purpose
of this stage set in Augmented Reality Graphics is to aid the research on visual coherence.
Tracking target object simulation and optimization (2010)
Summary: In this work we present a novel idea of evaluating natural feature-point based tracking
targets. Our main objective is to evaluate the inherent characteristics of natural feature-point sets with
respect to vision-based pose estimation algorithms. Our work attempts to break new ground by concentrating
on evaluating complete tracking targets, rather than evaluating tracking methods or single features.
This allows deriving indications on how to improve the trackability of natural feature point sets.
Publications:
Evaluating the Trackability of Natural Feature-Point Sets.
Lukas Gruber, Stefanie Zollmann, Daniel Wagner and Dieter Schmalstieg,
8th IEEE International Symposium on Mixed and Augmented Reality (ISMAR), 19-22 Oct. 2009
Optimization of Target Objects for Natural Feature Tracking.
Lukas Gruber, Stefanie Zollmann, Daniel Wagner, Tobias Hollerer and Dieter Schmalstieg,
2010 20th International Conference on Pattern Recognition (ICPR), 23-26 Aug. 2010
City of Sights - Augmented Reality Stage Set (2010)
Summary:
We describe the design and implementation of a physical and virtual model
of an imaginary urban scene — the “City of Sights” — that can serve as a
backdrop or “stage” for a variety of Augmented Reality (AR) research. We
argue that the AR research community would benefit from such a standard
model dataset which can be used for evaluation of such AR topics as tracking
systems, modeling, spatial AR, rendering tests, collaborative AR and user
interface design. By openly sharing the digital blueprints and assembly instructions
for our models, we allow the proposed set to be physically replicable by anyone
and permit customization and experimental changes to the stage design which
enable comprehensive exploration of algorithms and methods. Furthermore we
provide an accompanying rich dataset consisting of video sequences under
varying conditions with reference camera pose. We employed three different
camera-pose reference data acquisition methods to support a broad range of
use cases. The goal of our design is to enable and improve the replicability
and evaluation of future augmented reality research.
Publications:
The City of Sights: Design, Construction, and Measurement of an Augmented Reality Stage Set.
Lukas Gruber, Steffen Gauglitz, Jonathan Ventura, Stefanie Zollmann, Manuel Huber, Michael Schlegel, Gudrun Klinker, Dieter Schmalstieg, Tobias Höllerer,
9th IEEE International Symposium on Mixed and Augmented Reality (ISMAR), 13-16 Oct. 2010
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last updated on 2011-08-02
