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A Study on Denoising Method using Wavelet in Impulse Noise Environment  

배상범 (부경대학교 공과대학 제어계측공학과)
김남호 (부경대학교 공과대학 제어계측공학과)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.6, no.4, 2002 , pp. 513-518 More about this Journal
Abstract
This paper presents the new method for removing impulse noise using wavelet. Time and frequency-localization capabilities in denoising can provide excellent specialties comparing with the existing methods, because of including detail information of signal. The method in this paper, using denoising by threshold and slope of signal by wavelet, has superior denoising effect and can recognize edge of original signal. For objective judgement, the test signals are used HeaviSine and DTMF and this paper simulated by test signals which have added to impulse noise of different site individually.
Keywords
wavelet; time and frequency -localization; denoising; threshold;
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