Rate of convergence of regularization procedures and finite element approximations for the total variation flow |
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Authors: | Xiaobing Feng Markus von Oehsen Andreas Prohl |
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Institution: | (1) Department of Mathematics, University of Tennessee, Knoxville, TN 37996, USA;(2) Department of Mathematics, ETH Zürich, 8092 Zürich, Switzerland |
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Abstract: | Summary We derive rates of convergence for regularization procedures (characterized by a parameter ) and finite element approximations of the total variation flow, which arises from image processing, geometric analysis and materials sciences. Practically useful error estimates, which depend on only in low polynomial orders, are established for the proposed fully discrete finite element approximations. As a result, scaling laws which relate mesh parameters to the regularization parameter are also obtained. Numerical experiments are provided to validate the theoretical results and show efficiency of the proposed numerical methods. |
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Keywords: | 65M60 65N30 35B25 35K57 |
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