Authors:
Florian Echtler
;
Manuel Huber
;
Daniel Pustka
;
Peter Keitler
and
Gudrun Klinker
Affiliation:
Institut für Informatik I16, Technische Universität München, Germany
Keyword(s):
Scenegraph, spatial relationship graph, augmented reality, tracking.
Related
Ontology
Subjects/Areas/Topics:
Augmented, Mixed and Virtual Environments
;
Computer Vision, Visualization and Computer Graphics
;
Distributed Augmented, Mixed and Virtual Reality
;
Geometry and Modeling
;
Graphics Architectures
;
Interactive Environments
;
Rendering
;
Systems and Software Architectures for Rendering
Abstract:
Scene graphs have been a core element of 3D graphics since the publication of Inventor. However, in Virtual and Augmented Reality applications, 3D graphics are often interleaved with and controlled by real-world data provided by pose trackers, cameras and other kinds of sensors. In such a setup, the generalized concept of a Spatial Relationship Graph (SRG) might be better suited as an underlying data structure to describe the application and its components. In this paper, we will give an overview of the SRG concept, describe its difference to a scene graph and provide an example AR application built upon an SRG-based tracking library.