Year: 2019
Author: Hamdi Houichet, Anis Theljani, Badreddine Rjaibi, Maher Moakher
Journal of Mathematical Study, Vol. 52 (2019), Iss. 4 : pp. 394–424
Abstract
We propose a multiscale approach for a nonstandard higher-order PDE based on the $p$(·)-Kirchhoff energy. We first use the topological gradient approach for a semi-linear case in order to detect important objects of the image. We consider a fully nonlinear $p$(·)-Kirchhoff equation with variable-exponent functions that are chosen adaptively based on the map provided by the topological gradient in order to preserve important features of the image. Then, we consider the split Bregman method for the numerical implementation of the proposed model. We compare our model with other classical variational approaches such as the TVL and bi-harmonic restoration models. Finally, we present some numerical results to illustrate the effectiveness of our approach.
You do not have full access to this article.
Already a Subscriber? Sign in as an individual or via your institution
Journal Article Details
Publisher Name: Global Science Press
Language: English
DOI: https://doi.org/10.4208/jms.v52n4.19.03
Journal of Mathematical Study, Vol. 52 (2019), Iss. 4 : pp. 394–424
Published online: 2019-01
AMS Subject Headings:
Copyright: COPYRIGHT: © Global Science Press
Pages: 31
Keywords: Inverse problems regularization procedures $p$(·)-Kirchhoff topological gradient split Bregman.
Author Details
-
Edge detection from X‐ray tomographic data for geometric image registration
Lajili, Mohamed | Rjaibi, Badreddine | Auroux, Didier | Moakher, MaherMathematical Methods in the Applied Sciences, Vol. 46 (2023), Iss. 6 P.6324
https://doi.org/10.1002/mma.8905 [Citations: 2] -
A nonlinear fourth-order PDE for image denoising in Sobolev spaces with variable exponents and its numerical algorithm
Houichet, Hamdi | Theljani, Anis | Moakher, MaherComputational and Applied Mathematics, Vol. 40 (2021), Iss. 3
https://doi.org/10.1007/s40314-021-01462-1 [Citations: 7]