Analytic separable dictionary learning based on oblique manifold
Analytic separable dictionary learning based on oblique manifold
复制标题
基于斜流形的解析可分离字典学习
DOI:
10.1016/j.neucom.2016.09.099
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发表时间:
2017-05
期刊:
影响因子:
6
通讯作者:
Shaohai Hu
中科院分区:
文献类型:
--
作者:
Fengzhen Zhang;Yigang Cen;Ruizhen Zhao;Hengyou Wang;Yi Cen;Lihong Cui;Shaohai Hu
Sparse representation based on dictionary has gained increasing interest due to its extensive applications. Because of the disadvantages of computational complexity of traditional dictionary learning, we propose an algorithm of analytic separable dictionary learning. Considering the differences of sparse coefficient matrix and dictionary, we divide our algorithm into two phases: 2D sparse coding and dictionary optimization. Then an alternative iteration method is used between these two phases. The algorithm of 2D-OMP (2-dimensional Orthogonal Matching Pursuit) is used in the first phase because of its low complexity. In the second phase, we create a continuous function of the optimization problem, and solve it by the conjugate gradient method on oblique manifold. By employing the separable structure of the optimized dictionary, a competitive result is achieved in our experiments for image de-noising.
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影响因子:
6
作者:
Lu Zhenyu;Zhang Linghua
通讯作者:
Zhang Linghua
影响因子:
5.4
作者:
Huang Bai;Gang Li;Sheng Li;Qiuwei Li;Qianru Jiang;Liping Chang
通讯作者:
Huang Bai;Gang Li;Sheng Li;Qiuwei Li;Qianru Jiang;Liping Chang
影响因子:
6.8
作者:
M. Aharon;Michael Elad;A. Bruckstein;Y. Katz
通讯作者:
M. Aharon;Michael Elad;A. Bruckstein;Y. Katz
DOI:
10.1016/j.cam.2012.11.018
发表时间:
2013-05
期刊:
J. Comput. Appl. Math.
影响因子:
--
作者:
Y. Cen;L. Cen;Xiao-Fang Chen;Z. Miao
通讯作者:
Y. Cen;L. Cen;Xiao-Fang Chen;Z. Miao
DOI:
--
发表时间:
2014-06
期刊:
2014 22nd European Signal Processing Conference (EUSIPCO)
影响因子:
--
作者:
Matthias Seibert;Julian Wörmann;R. Gribonval;M. Kleinsteuber
通讯作者:
Matthias Seibert;Julian Wörmann;R. Gribonval;M. Kleinsteuber