ITM Web Conf.
Volume 11, 20172017 International Conference on Information Science and Technology (IST 2017)
|Number of page(s)||9|
|Section||Session II: Computer Vision and Image Processing|
|Published online||23 May 2017|
Application of Alternate Iterative Algorithm to Image Restoration
1 College of Computer and Information Engineering, Chifeng University, Chifeng, Inner Mongolia, 024000, China
2 College of Mathematics and Statistics, Chifeng University, Chifeng, Inner Mongolia, 024000, China
a Corresponding author: firstname.lastname@example.org
For overcoming the disadvantage of total variation for regularization, which easily produces stair effect, an improved weight energy functional regularization model and alternate algorithm is proposed. Because of non-smooth property of total variation semi-norm regularization model, it is impossible to solve primal model directly. For solving the problem, taking advantage of Fenchel transform, the primal model is converted into dual model, resorting to variable splitting technology, the alternating iterative algorithm is deduced. Moreover, the step length updating principle of primal-dual variable is given. Finally, using Camera image blurred by Gaussian noise, Telescope image blurred by system and Poisson noise for image restoration, simulations show the proposed can achieve smaller relative error, deviation error, higher peak of signal-to-noise ratio, and better visual effect.
© Owned by the authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.