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Second International Conference on 3-D Imaging and Modeling (3DIM '99)
Curve and Surface Models to Drive 3D Reconstruction Using Stereo and Shading
Ottawa, Canada
October 04-October 08
ISBN: 0-7695-0062-5
D. Roussel, LIMSI / CNRS
P. Bourdot, LIMSI / CNRS
R. Gherbi, LIMSI / CNRS
We propose in this article a reconstruction technique which consists in defining a parametric surface lying on a closed curve by setting the extremal behavior of the surface along the curve on which it lies. Therefore, we must build a set of curves in space from a stereo reconstruction of matched and closed contours in an image pair. Then, we use photo-metric information extracted near the image contours to define the local behavior of the surfaces lying on the closed curves. In order to build such a surface we use the duality existing between a stereo-based reconstruction which is able to determine the position of points in the scene space and photo-clinometry which brings information about the shape of the objects in the scene. Our geometric model is composed of a radial set of tri-parametric Gregory patches for each surface to reconstruct. The topological concepts brought by those kind of surfaces and the use of photo-metric models gave to this study a framework leading both image analysis processing and reconstruction geometrical processing.
Citation:
D. Roussel, P. Bourdot, R. Gherbi, "Curve and Surface Models to Drive 3D Reconstruction Using Stereo and Shading," 3dim, pp.0084, Second International Conference on 3-D Imaging and Modeling (3DIM '99), 1999
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