Application of the ICI principle to window size adaptive median filtering

被引:15
|
作者
Katkovnik, V [1 ]
Egiazarian, K [1 ]
Astola, J [1 ]
机构
[1] Tampere Univ Technol, Signal Proc Lab, Int Ctr Signal Proc, FIN-33101 Tampere, Finland
关键词
adaptive window median filter; denoizing; detection; non-parametric estimation; signal reconstruction;
D O I
10.1016/S0165-1684(02)00387-0
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
We describe a novel approach to solve a problem of varying window size selection for median filtering a noisy signal. The approach is based on the intersection of confidence interval rule. This rule gives the adaptive varying window size and enables the algorithm to be spatially adaptive in such a way that its quality is close to that which one could achieve if the smoothness of the estimated signal is known in advance. A multiwindow estimate combining left and right windowed median estimates is developed. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:251 / 257
页数:7
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