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《Modern Electronics Technique》 2008-01
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A Median Filtering Method Based on Noise Detection

MA Xuelei1,SHANG Zeli2 (1.College of Science School,Xidian University,Xi′an,710071,China;2.Key Lab.for Radar Signal Processing,Xidian University,Xi′an,710071,China)  
This paper proposes a filtering method based on DS evidence theory,which is used for removing two types of impulse noise.This new method is composed of impulse detection and noise filtering.We should get evidence,and define mass function by local information.Using a rule determine whether noises exist.During the filtering process,the noisy pixel is dealt with method proposed in this paper.The pixels uncorrupted remain unchanged.So those pixels uncorrupted are protected well.From the result,we can see that the method proposed in this paper is effective to two types of impulse noise,and can retain details in image at the same time.
【Fund】: 国家自然科学基金(No.60472086);; 教育部高校青年教师奖专项基金
【CateGory Index】: TP391.41
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