计算机应用 ›› 2013, Vol. 33 ›› Issue (09): 2592-259.DOI: 10.11772/j.issn.1001-9081.2013.09.2592

• 多媒体处理技术 • 上一篇    下一篇

结合自适应核回归和全变差的乘性噪声去除

吴玉莲1,2,冯象初2   

  1. 1. 西安电子科技大学 理学院,西安 710071
    2. 西安医学院 公共课部,西安 710021;
  • 收稿日期:2013-03-22 修回日期:2013-05-03 出版日期:2013-09-01 发布日期:2013-10-18
  • 通讯作者: 吴玉莲
  • 作者简介:吴玉莲(1978-),女,山东聊城人,讲师,博士研究生,主要研究方向:图像处理;
    冯象初(1962-),男,陕西西安人,教授,博士生导师,主要研究方向:图像处理。
  • 基金资助:

    国家自然科学基金资助项目

Multiplicative noise removal via adaptive kernel regression and total variation

WU Yulian1,2,FENG Xiangchu1   

  1. 1. Common Course Department, Xi'an Medical College, Xi'an Shaanxi 710021, China;
    2. School of Science, Xidian University, Xi'an Shaanxi 710071, China
  • Received:2013-03-22 Revised:2013-05-03 Online:2013-10-18 Published:2013-09-01
  • Contact: WU Yulian

摘要: 为了更好地去除图像中的乘性噪声,提出一个新的三阶段乘性噪声去除算法。第一阶段在图像的对数域用自适应的掌舵核回归(SKR)对图像进行去噪处理;第二阶段用全变差(TV)方法对第一阶段处理的结果进行补充处理;第三阶段通过指数变换和误差纠偏,把图像变回到真实的图像域。新方法具有掌舵核回归与全变差两种方法的优点,实验结果证明了其去除乘性噪声的有效性。

关键词: 乘性噪声, 核回归, 全变差, 自适应, 去噪

Abstract: To remove the multiplicative noise better, a new three-stage method for multiplicative noise removal was proposed. In the first stage, log-image was processed by adaptive Steer Kernel Regression (SKR). Then in the second stage, the Total Variation (TV) regularization method was used to amend the image obtained. At last, via an exponential function and bias correction, the result was transformed back from the log-domain to the real one. The new method combined the advantages of steer kernel regression and total variation method. The experimental results show that the new method is more effective to filter out multiplicative noise.

Key words: multiplicative noise, kernel regression, Total Variation (TV), adaptive, denoise

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