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REMOTE SENSING FOR LAND & RESOURCES    2008, Vol. 20 Issue (2) : 14-17     DOI: 10.6046/gtzyyg.2008.02.04
Technology and Methodology |
THE ALGORITHM FOR NOISE DETECTION AND FILTERING OF THE X-BAND NAUTICAL RADAR IMAGE
 HAO Yan-Ling, TANG Yan-Hong, LU Zhi-Zhong
College of Automation,Harbin Engineering University,Harbin 150001,China
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Abstract  

A novel algorithm for noise detection and filtering is proposed in this paper based on space-time characteristics of nautical radar data. The noise can be detected and filtrated by the improved median filtering algorithm according to the uncorrelated property among various scans. The algorithm for traditional median filtering and that for mean filtering are analyzed in comparison with the algorithm proposed in this paper,and the evaluation parameter of SNR is utilized to estimate the results. It is shown that the algorithm proposed in this paper preserves not only such advantages of the traditional median filtering as simple calculation and high speed computability but also the gray information of the original image. In addition,a good noise reduction effect can be achieved.

Keywords Western development      Application of remote sensing technology     
: 

TP751.1 

 
Issue Date: 15 July 2009
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HAO Yan-Ling, TANG Yan-Hong, LU Zhi-Zhong. THE ALGORITHM FOR NOISE DETECTION AND FILTERING OF THE X-BAND NAUTICAL RADAR IMAGE[J]. REMOTE SENSING FOR LAND & RESOURCES,2008, 20(2): 14-17.
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https://www.gtzyyg.com/EN/10.6046/gtzyyg.2008.02.04     OR     https://www.gtzyyg.com/EN/Y2008/V20/I2/14
[1] DIAO Shu-juan, NIE Hong-feng . REMOTE SENSING TECHNOLOGY AND WESTERN DEVELOPMENT[J]. REMOTE SENSING FOR LAND & RESOURCES, 2000, 12(4): 7-13.
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