Local transform-based denoising for radar image processing

被引：12
|
作者：
Egiazarian, KO [1 ]
Melnik, VP [1 ]
Lukin, VV [1 ]
Astola, JT [1 ]
机构：
[1] Tampere Univ Technol, Signal Proc Lab, Tampere, Finland
来源：
NONLINEAR IMAGE PROCESSING AND PATTERN ANALYSIS XII | 2001年 / 4304卷
关键词：
speckle; filtering; denoising; DCT; radar images;
D O I：
10.1117/12.424972
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
We consider the problems of speckle removal in radar images. The proposed filtering techniques make use of local DCT denoising based on adaptive thresholding or homomorphic transformation. Two-stage DCT denoising procedure in combination with local statistic filtering axe also introduced and analyzed. The effectiveness of the proposed speckle removal algorithms is demonstrated by means of numerical simulations.
引用
收藏
页码：170 / 178
页数：9
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