Novel image restoration model coupling gradient fidelity term based on adaptive total variation 被引量：1

Novel image restoration model coupling gradient fidelity term based on adaptive total variation

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摘要 A novel image restoration model coupling with a gradient fidelity term based on adaptive total variation is proposed in this paper. In order to choose proper parameters, the selection criteria were analyzed theoretically, and a simple scheme to demonstrate its validity was adopted experimentally. To make fair comparisons of performances of three models, the same numerical algorithm was used to solve partial differential equations. Both the international standard test image on Lena and HR image of CBERS-02B of Dalian city were used to verify the performance of the model. Experimental results illustrate that the new model not only preserved the edge and important details but also alleviated the staircase effect effectively. A novel image restoration model coupling with a gradient fidelity term based on adaptive total variation is proposed in this paper. In order to choose proper parameters, the selection criteria were analyzed theoretically, and a simple scheme to demonstrate its validity was adopted experimentally. To make fair comparisons of performances of three models, the same numerical algorithm was used to solve partial differential equations. Both the international standard test image on Lena and HR image of CBERS-02B of Dalian city were used to verify the performance of the model. Experimental results illustrate that the new model not only preserved the edge and important details but also alleviated the staircase effect effectively.

作者石明珠许廷发梁炯冯亮张坤周立伟

机构地区 School of Optoelectronics Beijing Institute of Technology Key Laboratory of Photo Electronic Imaging Technology and System Ministry of Education of China Beijing Institute of Technology

出处《Journal of Beijing Institute of Technology》 EI CAS 2011年第2期261-266,共6页 北京理工大学学报（英文版）

基金 Supported by the National Basic Research Program of China ("973"Program)(2009CB72400603) the National Natural Science Foundation of China(61027002 60972100)

关键词 image restoration total variation（TV） gradient fidelity term staircase effect image restoration total variation（TV） gradient fidelity term staircase effect

分类号 TP391.41 [自动化与计算机技术—计算机应用技术]

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