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» Computational Geometry of Contour Extraction
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ICPR
2006
IEEE
14 years 8 months ago
A Higher-Order Active Contour Model for Tree Detection
We present a model of a `gas of circles', the ensemble of regions in the image domain consisting of an unknown number of circles with approximately fixed radius and short ran...
Peter Horvath, Ian Jermyn, Zoltan Kato, and Josian...
MVA
2007
285views Computer Vision» more  MVA 2007»
13 years 7 months ago
Contour Retrieval and Matching by Affine Invariant Fourier Descriptors
In the image plane, a 3 Dimensional movement of planar rigid object can be represented satisfactory by an affine motion of his boundary (the exterior contour) which we assume to b...
Fatma Chaker, M. Tarak Bannour, Faouzi Ghorbel
PAMI
2011
12 years 10 months ago
Construction of Iso-Contours, Bisectors, and Voronoi Diagrams on Triangulated Surfaces
—In the research of computer vision and machine perception, three-dimensional objects are usually represented by 2-manifold triangular meshes M. In this paper, we present practic...
Yong-Jin Liu, Zhanqing Chen, Kai Tang
DICTA
2003
13 years 9 months ago
A Fast Skeletonization Method
This paper presents an efficient method for extracting the skeleton of a planar shape. The method is based on computing local symmetries of the shape’s linearized contour. The ce...
Ju Jia Zou
CBMS
2007
IEEE
14 years 2 months ago
Segmentation and Tracking of the Left Ventricle in 3D MRI Sequences Using an Active Surface Model
We describe a 3D+T active surface model for segmentation and tracking of the left ventricular endocardium within 3D MRI sequences of the cardiac cycle. In order to perform segment...
Julien Mille, Romuald Boné, Pascal Makris, ...