Authors:
Bert De Decker
;
Tom Mertens
and
Philippe Bekaert
Affiliation:
Expertise Centre for Digital Media, Hasselt University, Belgium
Keyword(s):
Video-based graphics, animation and rendering, collision detection, rigid body simulation, visual hull.
Related
Ontology
Subjects/Areas/Topics:
Animation Algorithms and Techniques
;
Animation and Simulation
;
Animation Systems
;
Applications
;
Augmented, Mixed and Virtual Environments
;
Collision Detection
;
Computer Vision, Visualization and Computer Graphics
;
Geometry and Modeling
;
Graphics in Computer Games
;
Hardware Technologies for Augmented, Mixed and Virtual Environments
;
Image-Based Modeling
;
Interactive Environments
;
Pattern Recognition
;
Real-Time Graphics
;
Real-Time Visual Simulation
;
Software Engineering
Abstract:
We present a novel way of interacting with a virtual 3D scene in the context of free-viewpoint video. Using a multi-camera setup, our technique detects collisions between virtual objects and real objects, including people. We perform collision computations directly on the image data, as opposed to reconstructing the full geometry of the subject. This reduces implementation complexity, and moreover, yields interactive performance. We demonstrate the effectiveness of our technique by incorporating it in a rigid body simulation. The subject can interact with virtual objects and observe his or her actions while being able to adjust the viewpoint, all in real-time.