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SIGGRAPH
1996
ACM
15 years 2 months ago
Blue Screen Matting
A classical problem of imaging--the matting problem--is separation of a non-rectangular foreground image from a (usually) rectangular background image--for example, in a film fram...
Alvy Ray Smith, James F. Blinn
COMGEO
2012
ACM
13 years 5 months ago
Algorithms for the edge-width of an embedded graph
Let G be an unweighted graph of complexity n embedded in a surface of genus g, orientable or not. We describe improved algorithms to compute a shortest non-contractible and a shor...
Sergio Cabello, Éric Colin de Verdiè...
COMGEO
2002
ACM
14 years 9 months ago
Quadtree, ray shooting and approximate minimum weight Steiner triangulation
We present a quadtree-based decomposition of the interior of a polygon with holes. The complete decomposition yields a constant factor approximation of the minimum weight Steiner ...
Siu-Wing Cheng, Kam-Hing Lee
CORR
2011
Springer
215views Education» more  CORR 2011»
14 years 1 months ago
A Foundational View on Integration Problems
The integration of reasoning and computation services across system and language boundaries has been mostly treated from an engineering perspective. In this paper we take a foundat...
Florian Rabe, Michael Kohlhase, Claudio Sacerdoti ...
EUROCRYPT
2011
Springer
14 years 1 months ago
Homomorphic Signatures for Polynomial Functions
We construct the first homomorphic signature scheme that is capable of evaluating multivariate polynomials on signed data. Given the public key and a signed data set, there is an...
Dan Boneh, David Mandell Freeman