Image restoration in the presence of impulse noise by adaptive equidistant median filter

被引：0
作者：
Jiayi Chen
Wentao Zuo
Yinwei Zhan
机构：
[1] Guangdong Medical University,School of Biomedical Engineering
[2] Guangzhou College of Technology and Business,Department of Computer Science and Engineering
[3] Guangdong University of Technology,School of Computer Science and Technology
来源：
Multimedia Tools and Applications | 2022年 / 81卷
关键词：
Image restoration; Noise detection; Switching median filter; Circular neighborhood; Equidistant median filter;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
After widely studying the methods in literatures for impulse noise removal, aiming at overcoming their deficiencies and further improving the denoising performance, we propose an adaptive equidistant median filter for image restoration in the presence of impulse noise. As an improved and effective alternative to the square neighborhood, the circular neighborhood is proposed for noise detection and removal processing. A noise detector based on adaptive local statistics is proposed, followed by a noise removal technique gaining support from adaptive equidistant median proposed subsequently. Furthermore, the noise removal processing is performed adaptively so as to be robust for various noise densities. Experimental results have shown that the proposed method has substantially improved the performance in noise detection and removal, and is superior than the state-of-the-art filters with excellent capability of noise removal and structural information preservation.
引用
收藏
页码：20407 / 20423
页数：16
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