DocumentCode :
3628460
Title :
Measuring camera translation by the dominant apical angle
Author :
Akihiko Torii;Michal Havlena;Tomas Pajdla;Bastian Leibe
Author_Institution :
CMP, Czech Technical University, Prague, Czech Republic
fYear :
2008
fDate :
6/1/2008 12:00:00 AM
Firstpage :
1
Lastpage :
7
Abstract :
This paper provides a technique for measuring camera translation relatively w.r.t. the scene from two images. We demonstrate that the amount of the translation can be reliably measured for general as well as planar scenes by the most frequent apical angle, the angle under which the camera centers are seen from the perspective of the reconstructed scene points. Simulated experiments show that the dominant apical angle is a linear function of the length of the true camera translation. In a real experiment, we demonstrate that by skipping image pairs with too small motion, we can reliably initialize structure from motion, compute accurate camera trajectory in order to rectify images and use the ground plane constraint in recognition of pedestrians in a hand-held video sequence.
Keywords :
"Cameras","Layout","Image reconstruction","Motion detection","Computational modeling","Video sequences","Object recognition","Motion measurement","Handheld computers","Image recognition"
Publisher :
ieee
Conference_Titel :
Computer Vision and Pattern Recognition, 2008. CVPR 2008. IEEE Conference on
ISSN :
1063-6919
Print_ISBN :
978-1-4244-2242-5
Type :
conf
DOI :
10.1109/CVPR.2008.4587531
Filename :
4587531
Link To Document :
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