@Article{NMTMA-6-1, author = {}, title = {A Fast Augmented Lagrangian Method for Euler's Elastica Models}, journal = {Numerical Mathematics: Theory, Methods and Applications}, year = {2013}, volume = {6}, number = {1}, pages = {47--71}, abstract = {

In this paper, a fast algorithm for Euler's elastica functional is proposed, in which the Euler's elastica functional is reformulated as a constrained minimization problem. Combining the augmented Lagrangian method and operator splitting techniques, the resulting saddle-point problem is solved by a serial of subproblems. To tackle the nonlinear constraints arising in the model, a novel fixed-point-based approach is proposed so that all the subproblems either is a linear problem or has a closed-form solution. We show the good performance of our approach in terms of speed and reliability using numerous numerical examples on synthetic, real-world and medical images for image denoising, image inpainting and image zooming problems.

}, issn = {2079-7338}, doi = {https://doi.org/10.4208/nmtma.2013.mssvm03}, url = {https://global-sci.com/article/90622/a-fast-augmented-lagrangian-method-for-eulers-elastica-models} }