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Multi-lead ECG data compression with orthogonal expansions: KLT and wavelet packets

Abstract:

In this paper we present the extension of transform coding compression methods to multilead ECG recordings in order to reduce the inter-lead correlation. Two orthogonal expansions are considered: the Karhunen-Loeve transform and a fast approximation of it based on wavelet packets, also known as best basis algorithm. The multilead compression algorithm with wavelet packets achieves an average compression ratio of 30.5:1 in two-leads records from MIT-BIH Arrythmia database, in contrast to 21.4:1 for the single-lead algorithm with the same distortion. Better results could be obtained in ECG recordings with more than two leads.

Año de publicación:

1999

Keywords:

    Fuente:

    scopusscopus

    Tipo de documento:

    Conference Object

    Estado:

    Acceso restringido

    Áreas de conocimiento:

    • Algoritmo
    • Procesamiento de señales

    Áreas temáticas:

    • Anatomía humana, citología, histología
    • Funcionamiento de bibliotecas y archivos
    • Medicina y salud

    Contribuidores:

    Olmos S.Olmos S.
    Pablo LagunaPablo Laguna