Hard-switching adaptive filter for speckle image processing

被引：5
|
作者：
Lukin, V [1 ]
Melnik, V [1 ]
Chemerovsky, V [1 ]
Astola, J [1 ]
Saarinen, K [1 ]
机构：
[1] Kharkov Aviat Inst, Dept 507, UA-310070 Kharkov, Ukraine
来源：
MATHEMATICAL MODELING AND ESTIMATION TECHNIQUES IN COMPUTER VISION | 1998年 / 3457卷
关键词：
speckle; adaptive filtering; spike removal; modified Frost filter; computational efficiency;
D O I：
10.1117/12.323454
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
The ways to improve the computational efficiency of the Frost filter and make it robust in respect to spikes are considered. A hard-switching adaptive procedure is proposed and the aspects of proper selection of linear filter parameters and threshold values are discussed. Then the idea of subsequent application of FIR-median hybrid filter is put forward. Quantitative and visual simulation results are presented for different p.d.f.s of multiplicative noise to compare the properties and to demonstrate the advantages of proposed modifications. Real synthetic aperture radar (SAR) and artificial image processing results are demonstrated.
引用
收藏
页码：31 / 42
页数：12
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