The application of wavelet transform and wavelet lifting in signal processing of EGG / 生物医学工程学杂志
Journal of Biomedical Engineering
;
(6): 745-749, 2012.
Artigo
em Chinês
| WPRIM
| ID: wpr-271697
ABSTRACT
This paper introduced the definition, structure of basis wavelet functions and wavelet lifting. Wavelet transform and wavelet lifting were applied in signal processing of EGG in our study. The characteristics of signal energy, information entropy and joint entropy were analyzed to introduce general selective method of wavelet basis functions after the signals have been filtered. In order to verify the rationality of evaluation criteria, signals of electrogastrogram (EGG) were processed and filtered with different wavelet basis functions in the experiments. Signals of EGG were filtered by wavelet transform and wavelet lifting, slow wave and spike wave of EGG were filtered. And the rationality of wavelet transform, wavelet lifting and effectiveness of EGG filter algorithm were proved by the experimental data. It provided an effective solution for the diagnosis and measurement of gastric diseases.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Fisiologia
/
Estômago
/
Processamento de Sinais Assistido por Computador
/
Diagnóstico
/
Eletrodiagnóstico
/
Análise de Ondaletas
/
Gastroenteropatias
/
Motilidade Gastrointestinal
/
Métodos
Tipo de estudo:
Estudo diagnóstico
Limite:
Humanos
Idioma:
Chinês
Revista:
Journal of Biomedical Engineering
Ano de publicação:
2012
Tipo de documento:
Artigo
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