Fast Algorithm for Image Denosing with Different Boundary Conditions
Fast Algorithm for Image Denosing with Different Boundary Conditions
复制标题
不同边界条件下图像去噪的快速算法
DOI:
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发表时间:
2017
期刊:
影响因子:
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通讯作者:
Yonggui Zhu
中科院分区:
文献类型:
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作者:
Xiaole Zhang;Yuying Shi;zhifengoang@163.com;Yonggui Zhu
In recent works several authors have considered the L 1 fidelity term, the L 2 fidelity term and the.combined L 1 and L 2 fidelity term for denoising models, and they used the fast Fourier transform (FFT).algorithm which can only use periodic boundary conditions (BCs). In this paper, we combine the.augmented Lagrangian method (ALM) and the symmetric Red–Black Gauss–Seidel (SRBGS) method to.propose three algorithms that are suitable for different BCs. Experimental results show that the proposed.algorithms are effective and the model with the combined L 1 and L 2 fidelity term demonstrates more.advantages in efficiency and accuracy than other models with the L 1 fidelity term or the L 2 fidelity term.