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MFCS
1994
Springer
13 years 11 months ago
"The Big Sweep": On the Power of the Wavefront Approach to Voronoi Diagrams
We show that the wavefront approach to Voronoi diagrams (a deterministic line sweep algorithm that does not use geometric transform) can be generalized to distance measures more g...
Frank K. H. A. Dehne, Rolf Klein
CAIP
2007
Springer
170views Image Analysis» more  CAIP 2007»
13 years 11 months ago
Image Segmentation Using Topological Persistence
Abstract. This paper presents a new hybrid split-and-merge image segmentation method based on computational geometry and topology using persistent homology. The algorithm uses edge...
David Letscher, Jason Fritts
GD
2006
Springer
13 years 11 months ago
Controllable and Progressive Edge Clustering for Large Networks
Node-link diagrams are widely used in information visualization to show relationships among data. However, when the size of data becomes very large, node-link diagrams will become ...
Huamin Qu, Hong Zhou, Yingcai Wu
SGP
2007
13 years 9 months ago
A streaming algorithm for surface reconstruction
We present a streaming algorithm for reconstructing closed surfaces from large non-uniform point sets based on a geometric convection technique. Assuming that the sample points ar...
Rémi Allègre, Raphaëlle Chaine,...
APVIS
2008
13 years 8 months ago
Energy-Based Hierarchical Edge Clustering of Graphs
Effectively visualizing complex node-link graphs which depict relationships among data nodes is a challenging task due to the clutter and occlusion resulting from an excessive amo...
Hong Zhou, Xiaoru Yuan, Weiwei Cui, Huamin Qu, Bao...