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TMM
2002
94views more  TMM 2002»
15 years 6 months ago
A jointly optimal fractal/DCT compression scheme
In this paper a hybrid fractal and Discrete Cosine transform (DCT) coder is developed. Drawing on the ability of DCT to remove inter-pixel redundancies and on the ability of fracta...
Gerry Melnikov, Aggelos K. Katsaggelos
SIAMIS
2010
123views more  SIAMIS 2010»
15 years 4 months ago
Numerical Algorithms for Polyenergetic Digital Breast Tomosynthesis Reconstruction
Digital tomosynthesis imaging is becoming increasingly significant in a variety of medical imaging applications. Tomosynthesis imaging involves the acquisition of a series of proj...
Julianne Chung, James G. Nagy, Ioannis Sechopoulos
SIAMSC
2010
192views more  SIAMSC 2010»
15 years 4 months ago
Adaptive Discontinuous Galerkin Methods for Eigenvalue Problems Arising in Incompressible Fluid Flows
In this article we consider the a posteriori error estimation and adaptive mesh refinement of discontinuous Galerkin finite element approximations of the hydrodynamic stability p...
K. Andrew Cliffe, Edward J. C. Hall, Paul Houston
TISSEC
2010
121views more  TISSEC 2010»
15 years 4 months ago
Privacy-aware role-based access control
Privacy has been acknowledged to be a critical requirement for many business (and non-business) environments. Therefore, the definition of an expressive and easy-to-use privacyre...
Qun Ni, Elisa Bertino, Jorge Lobo, Carolyn Brodie,...
GIS
2010
ACM
15 years 4 months ago
Geolocation privacy and application platforms
Security and privacy issues for Location-Based Services (LBS) and geolocation-capable applications often revolve around designing a User Interface (UI) such that users are informe...
Nick Doty, Erik Wilde