DocumentCode :
522731
Title :
A platform for the fast interpretation of movements and localization of users in 3D applications driven by a range camera
Author :
Piérard, Sébastien ; Pierlot, Vincent ; Barnich, Olivier ; Van Droogenbroeck, Marc ; Verly, Jacques
Author_Institution :
INTELSIG Lab., Univ. of Liege, Liège, Belgium
fYear :
2010
fDate :
7-9 June 2010
Firstpage :
1
Lastpage :
4
Abstract :
Interactivity is one of the key challenges for immersive applications like gaming. Manufacturers have been working towards interfaces that are driven by a device (e.g. a Wiimote) or interfaces that are controlled by a camera with a subsequent computer vision module. Both approaches have unique advantages, but they do not permit to localize users in the scene with an appropriate accuracy. Therefore, we propose to use both a range camera and accurate range sensors to enable the interpretation of movements. This paper describes a platform that uses a range camera to acquire the silhouettes of users, regardless of illumination, and to improve the pose recovery with range information after some image processing steps. In addition, to circumvent the difficult process of calibration required to map range values to physical distances, we complete the system with several range laser sensors. These sensors are located in a horizontal plane, and measure distances up to a few centimeters. We combine all these measurements to obtain a localization map, used to locate users in the scene at a negligible computational cost. Our method fills a gap in 3D applications that require absolute positions.
Keywords :
image sensors; interactive systems; motion compensation; computer vision; image processing; localization map; pose recovery; range camera; range sensors; subsequent computer vision module; user localization; Application software; Calibration; Cameras; Computer aided manufacturing; Computer vision; Image processing; Laser theory; Layout; Lighting; Sensor systems; Detectors; distance measurement; image analysis; image shape analysis; interactive computing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
3DTV-Conference: The True Vision - Capture, Transmission and Display of 3D Video (3DTV-CON), 2010
Conference_Location :
Tampere
Print_ISBN :
978-1-4244-6377-0
Electronic_ISBN :
978-1-4244-6378-7
Type :
conf
DOI :
10.1109/3DTV.2010.5506408
Filename :
5506408
Link To Document :
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