Augmented reality live-action compositing

Author

Pintaric, Thomas

Author_Institution

Vienna Univ. of Technol., Austria

fYear

2003

fDate

7-10 Oct. 2003

Firstpage

337

Abstract

This report describes a system that performs live-action compositing of physical and virtual objects to a panoramic background image in real-time at interactive rates. A static camera is directed towards a 40 cm³ miniature stage, whose backdrop has been colored in chromatic green. Users can add virtual objects and manipulate their parameters within the scene by using a proxy device that consists of a small rod attached to a fiducial marker. Our system runs on commodity hardware such as a notebook equipped with a firewire video camera. The necessary chroma-keying and adaptive difference-matting algorithms have been implemented on a GPU using fragment shading.

Keywords

augmented reality; notebook computers; optical tracking; rendering (computer graphics); video cameras; GPU; adaptive difference matting; augmented reality; background image; chroma keying; chromatic green; commodity hardware; difference-matting algorithms; fiducial marker; firewire video camera; fragment shading; interactive rates; live-action compositing; notebook computer; physical objects; programmable shading; proxy device; virtual objects; Augmented reality; Cameras; Contracts; Firewire; Hardware; Layout; Multimedia systems; Real time systems; Streaming media; Virtual reality;

fLanguage

English

Publisher

ieee

Conference_Titel

Mixed and Augmented Reality, 2003. Proceedings. The Second IEEE and ACM International Symposium on

Print_ISBN

0-7695-2006-5

Type

conf

DOI

10.1109/ISMAR.2003.1240748

Filename

1240748