602 search results - page 11 / 121 » gradient vector flow |
SIAMCO
2010
13 years 4 months ago
2010
A minimum time problem with a nonlinear smooth dynamics and a target satisfying an internal sphere condition is considered. Under the assumption that the minimum time T be continu...
ICCV
2005
IEEE
14 years 11 months ago
2005
IEEE
This paper tackles an important aspect of the variational problems involving active contours, which has been largely overlooked so far: the optimization by gradient flows. Classic...
ACAL
2007
Springer
14 years 4 months ago
2007
Springer
Abstract. Running droplets have been studied recent years as dissipative macroscopic structures with locomotive capability, a characteristic of which is shared with biological syst...
Publication
We present a method for detecting and describing features in vector flow fields. Our method models flow fields locally using a linear combination of complex monomials. These monomi...
AUTOMATICA
2006
13 years 10 months ago
2006
This paper introduces the normalized and signed gradient dynamical systems associated with a differentiable function. Extending recent results on nonsmooth stability analysis, we ...