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» The Trouble with Spurious eigenvalues
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IJBC
2007
49views more  IJBC 2007»
13 years 7 months ago
The Trouble with Spurious eigenvalues
Raymond A. Adomaitis
MOC
2000
83views more  MOC 2000»
13 years 7 months ago
On the problem of spurious eigenvalues in the approximation of linear elliptic problems in mixed form
In the approximation of linear elliptic operators in mixed form, it is well known that the so-called inf-sup and ellipticity in the kernel properties are sufficient (and, in a sens...
Daniele Boffi, Franco Brezzi, Lucia Gastaldi
MOC
2010
13 years 2 months ago
On the convergence of Hill's method
Hill's method is a means to numerically approximate spectra of linear differential operators with periodic coefficients. In this paper, we address different issues related to...
Christopher W. Curtis, Bernard Deconinck
ISBI
2007
IEEE
14 years 1 months ago
A Hybrid Filtering Approach to Retinal Vessel Segmentation
We propose a novel vessel enhancement filter for retinal images. The filter can be used as a preprocessing step in applications such as vessel segmentation/visualization, and pa...
Chang-Hua Wu, Gady Agam, Peter Stanchev
CIRA
2007
IEEE
147views Robotics» more  CIRA 2007»
14 years 1 months ago
A general framework for vessel segmentation in retinal images
Abstract— We present a general framework for vessel segmentation in retinal images with a particular focus on small vessels. The retinal images are first processed by a nonlinea...
Chang-Hua Wu, Gady Agam, Peter Stanchev