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Second-order cone programming methods for total variation-based image restoration
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DOI：10.1137/040608982.png)
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摘要
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In this paper we present optimization algorithms for image restoration based on the total variation (TV) minimization framework of Rudin, Osher, and Fatemi ( ROF). Our approach formulates TV minimization as a second- order cone program which is then solved by interior-point algorithms that are efficient both in practice ( using nested dissection and domain decomposition) and in theory ( i. e., they obtain solutions in polynomial time). In addition to the original ROF minimization model, we show how to apply our approach to other TV models, including ones that are not solvable by PDE-based methods. Numerical results on a varied set of images are presented to illustrate the effectiveness of our approach.
Keyword:
image denoising
total variation
second
order cone programming
interior-point methods
nested dissection
domain decomposition
期刊
IF:
2.6
论文数:
5.1K
被引数:
1.8W
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