Title: Compression des signaux ECG par transformations polynomiales: M�thodes polynomiales de mod�lisation des signaux Applications � la compression de l'ECG (Omn.Univ.Europ.) (French Edition)
Publisher: Editions universitaires europeennes
Publication Date: 2010
Language: French
ISBN 10: 6131516510
ISBN 13: 9786131516511
Binding: Soft cover
Condition: New

About this title

Synopsis

La compression des signaux ECG trouve encore plus d'importance avec le d�veloppement de la t�l�m�decine. Notre objectif dans ce livre est d'�laborer de nouvelles m�thodes de compression des signaux ECG � base des polyn�mes orthogonaux. Nous avons tent� une description quasi exhaustive et comparative des algorithmes existants. Nous avons abord� par la suite les fondements th�oriques des polyn�mes orthogonaux. Le principe de transformation polynomiale de l'ECG est �tudi� � fond. Les coefficients produits apr�s la d�composition polynomiale sont utilis�s pour synth�tiser le signal dans la phase de reconstruction. Nos exp�rimentations confirment que les polyn�mes de Laguerre et les polyn�mes d'Hermite ne donnent pas lieu � une recomposition satisfaisante, alors que les polyn�mes de Legendre et les polyn�mes de Tchebychev engendrent une synth�se fid�le. Nous concevons un premier algorithme de compression de l'ECG en utilisant les polyn�mes de Jacobi. Nous avons envisag� une association des polyn�mes de Laguerre et des fonctions d'Hermite pour repr�senter un cycle cardiaque. On obtient un second algorithme de compression sp�cifique � l'ECG, robuste et tr�s performant.

About the Author

Enseignant chercheur � l'Universit� de Dschang(IUT-FV) depuis 1999,Ing�nieur polytechnicien en �lectrom�canique de l'ENSP de Yaound� (1990), Docteur en Automatique et Traitement du Signal de l'INPL de Nancy (France) en 2007. Aussi titulaire des DEA en Physique du Solide (1992) et en G�nie Electrique et T�l�communication (2002).

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