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CCCG
2007
15 years 1 months ago
Medial Axis Approximation of Planar Shapes from Union of Balls: A Simpler and more Robust Algorithm
Given a dense sampling S of the smooth boundary of a planar shape O. We show that the medial axis of the union of Voronoi balls centered at Voronoi vertices inside O has a particu...
Joachim Giesen, Balint Miklos, Mark Pauly
CVPR
2007
IEEE
16 years 1 months ago
Autocalibration and Uncalibrated Reconstruction of Shape from Defocus
Most algorithms for reconstructing shape from defocus assume that the images are obtained with a camera that has been previously calibrated so that the aperture, focal plane, and ...
Yifei Lou, Paolo Favaro, Andrea L. Bertozzi, Stefa...
ECCV
2008
Springer
16 years 1 months ago
ASN: Image Keypoint Detection from Adaptive Shape Neighborhood
Abstract. We describe an accurate keypoint detector that is stable under viewpoint change. In this paper, keypoints correspond to actual junctions in the image. The principle of AS...
Jean-Nicolas Ouellet, Patrick Hébert
ICPR
2006
IEEE
16 years 29 days ago
A Novel Volumetric Shape from Silhouette Algorithm Based on a Centripetal Pentahedron Model
In this paper we present a novel volumetric shape from silhouette algorithm based on a centripetal pentahedron model. The algorithm first partitions the space with a set of infini...
Xin Liu, Hongxun Yao, Guilin Yao, Wen Gao
ACCV
2007
Springer
15 years 6 months ago
Shape from Contour for the Digitization of Curved Documents
Abstract. We are aiming at extending the basic digital camera functionalities to the ability to simulate the flattening of a document, by virtually acting like a flatbed scanner....
Frédéric Courteille, Jean-Denis Duro...