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arXiv 1702.01276cs.CV
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基于复小波变换和双边滤波的图像去噪

Using Complex Wavelet Transform and Bilateral Filtering for Image Denoising

Hamedan University of Technology(哈马丹技术大学)

Seyede Mahya Hazavei, Hamid Reza Shahdoosti

摘要:

双边滤波器是一种非常有用的非线性滤波器,它不需要平滑边缘,而是进行空间平均。在文献中,这种方法的有效性,图像去噪。本文提出了一种基于复小波变换的扩展方法。实际上,双边滤波应用于使用复数小波变换的分解图像的低频(近似)子带,而阈值方法应用于高频子带。利用复小波域的双边滤波器构成了一种新的图像去噪框架。实验结果表明,该方法在消除噪声方面是有效的。

英文摘要:

The bilateral filter is a useful nonlinear filter which without smoothing edges, it does spatial averaging. In the literature, the effectiveness of this method for image denoising is shown. In this paper, an extension of this method is proposed which is based on complex wavelet transform. In fact, the bilateral filtering is applied to the low-frequency (approximation) subbands of the decomposed image using complex wavelet transform, while the thresholding approach is applied to the high frequency subbands. Using the bilateral filter in the complex wavelet domain forms a new image denoising framework. Experimental results for real data are provided, by which one can see the effectiveness of the proposed method in eliminating noise.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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