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ICIP
2003
IEEE
16 years 8 months ago
Halftone visual cryptography
This paper considers the problem of encoding a secret binary image SI into n shares of meaningful halftone images within the scheme of visual cryptography (VC). Secret pixels enco...
Z. Zhou, Gonzalo R. Arce, Giovanni Di Crescenzo
GIS
2003
ACM
16 years 7 months ago
An efficient r-tree implementation over flash-memory storage systems
For many applications with spatial data management such as Geographic Information Systems (GIS), block-oriented access over flash memory could introduce a significant number of no...
Chin-Hsien Wu, Li-Pin Chang, Tei-Wei Kuo
MICCAI
2005
Springer
16 years 7 months ago
Respiratory Motion Correction in Emission Tomography Image Reconstruction
In Emission Tomography imaging, respiratory motion causes artifacts in lungs and cardiac reconstructed images, which lead to misinterpretations and imprecise diagnosis. Solutions l...
Mauricio Reyes, Grégoire Malandain, Pierre ...
WWW
2004
ACM
16 years 7 months ago
Ranking the web frontier
The celebrated PageRank algorithm has proved to be a very effective paradigm for ranking results of web search algorithms. In this paper we refine this basic paradigm to take into...
Nadav Eiron, Kevin S. McCurley, John A. Tomlin
STOC
2009
ACM
133views Algorithms» more  STOC 2009»
16 years 7 months ago
Near-perfect load balancing by randomized rounding
We consider and analyze a new algorithm for balancing indivisible loads on a distributed network with n processors. The aim is minimizing the discrepancy between the maximum and m...
Tobias Friedrich, Thomas Sauerwald