Electronic Resource
Springer
Computing and visualization in science
1 (1997), S. 53-61
ISSN:
1433-0369
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mathematics
Notes:
Abstract. We introduce the coarsening of finite element computational grid strategy into the method proposed by Kačur and Mikula in [11] for the numerical solution of the Perona–Malik model modified in the sense of Catté, Lions, Morel and Coll. It improves the efficiency of the method, while the solution tends to be more flat during the selective smoothing process applied to the image. The numerical approximation consists of Rothe's method in time and linear finite elements on unstructured adaptively coarsened meshes in space.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s007910050005
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