DocumentCode :
2975158
Title :
Mediated reality using computer graphics hardware for computer vision
Author :
Fung, James ; Tang, Felix ; Mann, Steve
Author_Institution :
Dept. of Electr. & Comput. Eng., Toronto Univ., Ont., Canada
fYear :
2002
fDate :
2002
Firstpage :
83
Lastpage :
89
Abstract :
Wearable, camera based, head-tracking systems use spatial image registration algorithms to align images taken as the wearer gazes around their environment. This allows for computer-generated information to appear to the user as though it was anchored in the real world. Often, these algorithms require creation of a multiscale Gaussian pyramid or repetitive re-projection of the images. Such operations, however can be computationally expensive, and such head-tracking algorithms are desired to run in real-time on a body borne computer In this paper we present a method of using the 3D computer graphics hardware that is available in a typical wearable computer to accelerate the repetitive image projections required in many computer vision algorithms. We apply this "graphics for vision" technique to a wearable camera based head-tracking algorithm, implemented on a wearable computer with 3D graphics hardware. We perform an analysis of the acceleration achieved by applying graphics hardware to computer vision to create a Mediated Reality.
Keywords :
computer graphics; computer vision; virtual reality; wearable computers; 3D computer graphics hardware; body borne computer; computer graphics hardware; computer vision; computer-generated information; graphics hardware; head-tracking systems; image registration algorithms; mediated reality; multiscale Gaussian pyramid; repetitive image projections; wearable computer; Acceleration; Cameras; Computer graphics; Computer vision; Filtering; Hardware; Image resolution; Interpolation; Iterative algorithms; Wearable computers;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Wearable Computers, 2002. (ISWC 2002). Proceedings. Sixth International Symposium on
ISSN :
1530-0811
Print_ISBN :
0-7695-1816-8
Type :
conf
DOI :
10.1109/ISWC.2002.1167222
Filename :
1167222
Link To Document :
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