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STOC
2010
ACM
216views Algorithms» more  STOC 2010»
16 years 1 months ago
The HOM problem is decidable
We close affirmatively a question which has been open for long time: decidability of the HOM problem. The HOM problem consists in determining, given a tree homomorphism D and a re...
Guillem Godoy, Omer Giménez, Lander Ramos and Car...
CIKM
2007
Springer
15 years 10 months ago
Modeling historical and future movements of spatio-temporal objects in moving objects databases
Spatio-temporal databases deal with geometries changing over time. In general, geometries do not only change discretely but continuously; hence we are dealing with moving objects....
Reasey Praing, Markus Schneider
SI3D
2006
ACM
15 years 10 months ago
Jump flooding in GPU with applications to Voronoi diagram and distance transform
This paper studies jump flooding as an algorithmic paradigm in the general purpose computation with GPU. As an example application of jump flooding, the paper discusses a constant...
Guodong Rong, Tiow Seng Tan
MMSEC
2005
ACM
137views Multimedia» more  MMSEC 2005»
15 years 10 months ago
A fragile watermarking scheme for 3D meshes
In this paper, we propose a new fragile watermarking scheme for 3D meshes. Firstly, the watermark information is adaptively embedded into the mesh geometry by slightly adjusting t...
Hao-Tian Wu, Yiu-ming Cheung
GRAPHITE
2004
ACM
15 years 10 months ago
A new fractal-based approach for 3D visualization of mountains in VRML standard
Several factors currently limit the size of Virtual Reality Modeling Language (VRML) models that can be effectively visualized over the Web. Main factors include network bandwidth...
Mohsen Sharifi, Fatemeh Hashemi Golpaygani, Mehdi ...