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Vector sigma filters for noise detection and removal in color images

机译:矢量sigma滤波器可用于彩色图像中的噪声检测和去除

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This paper presents a new adaptive filtering approach capable of detecting and removing impulsive noise in multichannel images. The proposed methodology constitutes a powerful unified framework for multichannel signal processing. Robust order-statistic concepts and statistical measure of vectors' deviation are used in conjunction with different distance measures among multichannel inputs to determine an efficient switching rule between filter output and no filtering (identity operation). The special case of color image filtering is studied as an important example of multichannel signal processing. Simulation studies reported in this paper indicate that the proposed filter class is computationally attractive, has excellent performance, and is able to preserve fine details while suppressing impulsive noise.
机译:本文提出了一种新的自适应滤波方法,能够检测和消除多通道图像中的脉冲噪声。所提出的方法构成了用于多通道信号处理的强大的统一框架。稳健的阶数统计概念和向量偏差的统计度量与多通道输入之间的不同距离度量结合使用,以确定滤波器输出与不滤波(身份运算)之间的有效切换规则。研究了彩色图像滤波的特殊情况,作为多通道信号处理的重要示例。本文报道的仿真研究表明,所提出的滤波器类别在计算上具有吸引力,具有出色的性能,并且能够在抑制脉冲噪声的同时保留精细的细节。

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