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ICPR
2008
IEEE
16 years 1 months ago
Double-edge-model based character stroke extraction from complex backgrounds
Global gray-level thresholding techniques such as Otsu’s method, and local gray-level thresholding techniques such as adaptive thresholding method are powerful in extracting cha...
Jing Yu, Lei Huang, Changping Liu
ACCV
2007
Springer
16 years 29 days ago
Hand Posture Estimation in Complex Backgrounds by Considering Mis-match of Model
This paper proposes a novel method of estimating 3-D hand posture from images observed in complex backgrounds. Conventional methods often cause mistakes by mis-matches of local ima...
Akihiro Imai, Nobutaka Shimada, Yoshiaki Shirai
CRYPTO
2007
Springer
133views Cryptology» more  CRYPTO 2007»
16 years 28 days ago
Amplifying Collision Resistance: A Complexity-Theoretic Treatment
We initiate a complexity-theoretic treatment of hardness amplification for collision-resistant hash functions, namely the transformation of weakly collision-resistant hash functio...
Ran Canetti, Ronald L. Rivest, Madhu Sudan, Luca T...
STACS
2007
Springer
16 years 26 days ago
The Complexity of Unions of Disjoint Sets
This paper is motivated by the open question whether the union of two disjoint NPcomplete sets always is NP-complete. We discover that such unions retain much of the complexity of...
Christian Glaßer, Alan L. Selman, Stephen D....
188
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IMR
1998
Springer
15 years 11 months ago
Boundary Layer Meshing for Viscous Flows in Complex Domains
High reynolds number ow simulations exhibit strong gradients normal to walls and across shear layers requiring much ner resolution of the solution in some directions compared to o...
Rao V. Garimella, Mark S. Shephard