Impulse noise reduction based on lifting wavelet transform

Koichi Kuzume, Shigeru Takano, Koichi Niijima

研究成果: ジャーナルへの寄稿会議記事査読

1 被引用数 (Scopus)


This paper presents a novel method to restore signal corrupted with impulse noise by using time-varying lifting wavelet filters (TVLWF). It is difficult to remove such a noise by conventional linear niters and the Donoho's wavelet shrinkage method. Using the TVLWF, we can detect the locations of impulse noise and estimate their amplitude by which impulse noise can be removed. Proposed noise reduction method is tested on an electrocardiogram (ECG) signal corrupted with mixed Gaussian and random-valued impulse noise. Major improvement is obtained in comparison with conventional median filter.

ジャーナルEuropean Signal Processing Conference
出版ステータス出版済み - 3月 31 2000
イベント2000 10th European Signal Processing Conference, EUSIPCO 2000 - Tampere, フィンランド
継続期間: 9月 4 20009月 8 2000

!!!All Science Journal Classification (ASJC) codes

  • 信号処理
  • 電子工学および電気工学


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