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» Shape Nouns and Shape Concepts: A Geometry for 'Corner'
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ICCTA
2007
IEEE
13 years 11 months ago
A Comparative Study on 2D Curvature Estimators
Curvature is a frequently used property in two-dimensional (2D) shape analysis, directly or for derived features such as corners or convex and concave arcs. This paper presents cur...
Simon Hermann, Reinhard Klette
SCALESPACE
2009
Springer
13 years 11 months ago
Computational Geometry-Based Scale-Space and Modal Image Decomposition
In this paper a framework for defining scale-spaces, based on the computational geometry concepts of α-shapes, is proposed. In this approach, objects (curves or surfaces) of incr...
Anatole Chessel, Bertrand Cinquin, Sabine Bardin, ...
CVPR
2008
IEEE
14 years 7 months ago
Fast texture segmentation model based on the shape operator and active contour
We present an approach for unsupervised segmentation of natural and textural images based on active contour, differential geometry and information theoretical concept. More precis...
Nawal Houhou, Jean-Philippe Thiran, Xavier Bresson
TVCG
2012
202views Hardware» more  TVCG 2012»
11 years 7 months ago
Automatic Extraction of Manhattan-World Building Masses from 3D Laser Range Scans
—We propose a novel approach for the reconstruction of urban structures from 3D point clouds with an assumption of Manhattan World (MW) building geometry; i.e., the predominance ...
Carlos A. Vanegas, Daniel G. Aliaga, Bedrich Benes
CAD
2008
Springer
13 years 5 months ago
Polycube splines
This paper proposes a new concept of polycube splines and develops novel modeling techniques for using the polycube splines in solid modeling and shape computing. Polycube splines...
Hongyu Wang, Ying He 0001, Xin Li, Xianfeng Gu, Ho...