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» Property Testing with Geometric Queries
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CCS
2005
ACM
14 years 1 months ago
Obfuscated databases and group privacy
We investigate whether it is possible to encrypt a database and then give it away in such a form that users can still access it, but only in a restricted way. In contrast to conve...
Arvind Narayanan, Vitaly Shmatikov
SIGGRAPH
1998
ACM
13 years 11 months ago
Visibility Sorting and Compositing Without Splitting for Image Layer Decompositions
We present an efficient algorithm for visibility sorting a set of moving geometric objects into a sequence of image layers which are composited to produce the final image. Inste...
John M. Snyder, Jed Lengyel
DBPL
1999
Springer
109views Database» more  DBPL 1999»
13 years 12 months ago
Expressing Topological Connectivity of Spatial Databases
We consider two-dimensional spatial databases defined in terms of polynomial inequalities and focus on the potential of programming languages for such databases to express queries...
Floris Geerts, Bart Kuijpers
CPHYSICS
2006
103views more  CPHYSICS 2006»
13 years 7 months ago
WATERWAVES: wave particles dynamics on a complex triatomic potential
The WATERWAVES program suite performs complex scattering calculations by propagating a wave packet in a complex, full-dimensional potential for non-rotating (J = 0) but vibrating ...
Simone Taioli, Jonathan Tennyson
3DPVT
2006
IEEE
295views Visualization» more  3DPVT 2006»
13 years 9 months ago
Efficient Sparse 3D Reconstruction by Space Sweeping
This paper introduces a feature based method for the fast generation of sparse 3D point clouds from multiple images with known pose. We extract sub-pixel edge elements (2D positio...
Joachim Bauer, Christopher Zach, Horst Bischof