Bilateral sound denoising

Mitsuharu Matsumoto*, Shuji Hashimoto

*この研究の対応する著者

    研究成果

    2 被引用数 (Scopus)

    抄録

    This paper describes noise reduction based on a bilateral filter improved for an acoustical signal. A microphone array system has been utilized in various scenes. However, when we utilize the microphone array system in life space, the problem of back ground noise arises. Although the back ground noise is not always stationary, statistically independent or disjoint, the amplitude of the noise is usually small compared to the desired signal. Based on the aspects, we pay attention to a nonlinear filter called bilateral filter and apply it to an acoustical signal. Bilateral filter is known as a nonlinear filter for the image. It smoothes images while preserving edges. We improve bilateral filter for an acoustical signal and evaluate the performance of bilateral sound denoising. The experimental results show that the proposed method can reduce not only the stationary noise but also the nonstationary dependent noise.

    本文言語English
    ホスト出版物のタイトルProceedings - 2009 International Conference on Information Management and Engineering, ICIME 2009
    ページ119-123
    ページ数5
    DOI
    出版ステータスPublished - 2009
    イベント2009 International Conference on Information Management and Engineering, ICIME 2009 - Kuala Lumpur
    継続期間: 2009 4 32009 4 5

    Other

    Other2009 International Conference on Information Management and Engineering, ICIME 2009
    CityKuala Lumpur
    Period09/4/309/4/5

    ASJC Scopus subject areas

    • コンピュータ サイエンスの応用
    • 情報システム
    • 情報システムおよび情報管理

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