Vector median filters
Vector median filters
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DOI：
10.1016/0165-1684(87)90126-5
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发表时间：
1987-10
影响因子：
4.4
通讯作者：
T. Kasparis;G. Eichmann
中科院分区：
文献类型：
--
作者：
T. Kasparis;G. Eichmann
中值滤波器（MF）既用于从信号和图像中过滤“盐和胡椒”噪声，也用于其他信号处理应用。本文介绍了矢量中值滤波器（vector median filter， VMF）的扩展。与MF相反，VMF为每个窗口位置输出许多数据元素。通过调整VMF参数，得到一种特殊情况下的VMF。就像MF一样，VMF在过滤脉冲的同时保持信号的阶跃变化。VMF的主要优点是它减少了存储数据信号的总计算时间，同时产生与MF相当的视觉输出。研究了VMF的确定性和统计性质。并给出了计算机生成的实验结果。
Median filters (MF) are used both to filter ‘salt and pepper’ noise from signals and images and in other signal processing applications. In this paper, an extension of the MF, the vector median filter (VMF), is introduced. As opposed to the MF, the VMF outputs for each window location a number of data elements. By adjusting the VMF parameters, the MF is obtained as a VMF special case. Just like the MF, the VMF filters impulses while simultaneously preserving step changes in a signal. The VMF's principal advantage is that it reduces the total stored data signal computation time while it produces visual outputs comparable to that of an MF. Deterministic and statistical properties of the VMF are examined. Computer-generated experimental results are also presented.