Sciweavers

PAMI
2011
13 years 6 months ago
Topology-Adaptive Mesh Deformation for Surface Evolution, Morphing, and Multiview Reconstruction
—Triangulated meshes have become ubiquitous discrete surface representations. In this paper, we address the problem of how to maintain the manifold properties of a surface while ...
Andrei Zaharescu, Edmond Boyer, Radu Horaud
DC
2008
13 years 11 months ago
Contention-free MAC protocols for asynchronous wireless sensor networks
A MAC protocol specifies how nodes in a sensor network access a shared communication channel. Desired properties of a MAC protocol are: it should be contention-free (avoid collisio...
Costas Busch, Malik Magdon-Ismail, Fikret Sivrikay...
TIP
2008
116views more  TIP 2008»
13 years 11 months ago
Self-Repelling Snakes for Topology-Preserving Segmentation Models
The implicit framework of the level-set method has several advantages when tracking propagating fronts. Indeed, the evolving contour is embedded in a higher dimensional level-set f...
Carole Le Guyader, Luminita A. Vese
IVC
2008
71views more  IVC 2008»
13 years 11 months ago
Topological triangle characterization with application to object detection from images
A novel mathematical framework inspired on Morse Theory for topological triangle characterization in 2D meshes is introduced that is useful for applications involving the creation...
Luis Gustavo Nonato, Mario A. S. Lizier, J. Batist...
COMPGEOM
2010
ACM
14 years 4 months ago
Kinetic stable Delaunay graphs
The best known upper bound on the number of topological changes in the Delaunay triangulation of a set of moving points in R2 is (nearly) cubic, even if each point is moving with ...
Pankaj K. Agarwal, Jie Gao, Leonidas J. Guibas, Ha...
ER
2005
Springer
178views Database» more  ER 2005»
14 years 5 months ago
Assessing Topological Consistency for Collapse Operation in Generalization of Spatial Databases
Generalization of spatial databases consists of complicated operations including not only geometric transformations but also topological changes. The changes often result in an inc...
Hae-Kyong Kang, Ki-Joune Li
CVBIA
2005
Springer
14 years 5 months ago
Active Contours Under Topology Control Genus Preserving Level Sets
We present a novel framework to exert topology control over a level set evolution. Level set methods offer several advantages over parametric active contours, in particular automat...
Florent Ségonne, Jean-Philippe Pons, W. Eri...
INFOCOM
2008
IEEE
14 years 5 months ago
Light-Weight Contour Tracking in Wireless Sensor Networks
Abstract—We study the problem of contour tracking with binary sensors, an important problem for monitoring spatial signals and tracking group targets. In particular, we track the...
Xianjin Zhu, Rik Sarkar, Jie Gao, Joseph S. B. Mit...
SMA
2009
ACM
223views Solid Modeling» more  SMA 2009»
14 years 6 months ago
Particle-based forecast mechanism for continuous collision detection in deformable environments
Collision detection in geometrically complex scenes is crucial in physical simulations and real time applications. Works based on spatial hierarchical structures have been propose...
Thomas Jund, David Cazier, Jean-François Du...
ICNP
2009
IEEE
14 years 6 months ago
Multipath load-adaptive routing: putting the emphasis on robustness and simplicity
— We propose a routing and load-balancing approach with the primary goal of being robust to sudden topological changes and significant traffic matrix variations. The proposed m...
Amund Kvalbein, Constantine Dovrolis, Chidambaram ...