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SCALESPACE
2009
Springer
14 years 3 months ago
An Edge-Preserving Multilevel Method for Deblurring, Denoising, and Segmentation
We present a fast edge-preserving cascadic multilevel image restoration method for reducing blur and noise in contaminated images. The method also can be applied to segmentation. O...
Serena Morigi, Lothar Reichel, Fiorella Sgallari
ISBI
2006
IEEE
14 years 9 months ago
Fast marching method to correct for refraction in ultrasound computed tomography
A significant obstacle in the advancement of Ultrasound Computed Tomography has been the lack of efficient and precise methods for the tracing of the bent rays that result from th...
Shengying Li, Klaus Mueller, Marcel Jackowski, Don...
SIAMSC
2008
113views more  SIAMSC 2008»
13 years 8 months ago
An Efficient and Robust Method for Simulating Two-Phase Gel Dynamics
We develop a computational method for simulating models of gel dynamics where the gel is described by two phases, a networked polymer and a fluid solvent. The models consist of tra...
Grady B. Wright, Robert D. Guy, Aaron L. Fogelson
ATMOS
2008
187views Optimization» more  ATMOS 2008»
13 years 10 months ago
Solving Periodic Timetable Optimisation Problems by Modulo Simplex Calculations
In the last 15 years periodic timetable problems have found much interest in the combinatorial optimization community. We will focus on the optimisation task to minimise a weighted...
Karl Nachtigall, Jens Opitz
CRYPTO
2004
Springer
120views Cryptology» more  CRYPTO 2004»
14 years 2 months ago
Rewriting Variables: The Complexity of Fast Algebraic Attacks on Stream Ciphers
Recently proposed algebraic attacks [2, 6] and fast algebraic attacks [1, 5] have provided the best analyses against some deployed LFSR-based ciphers. The process complexity is exp...
Philip Hawkes, Gregory G. Rose