Title :
KLT-based quality controlled compression of single-lead ECG
Author :
Blanchett, T. ; Kember, G.C. ; Fenton, G.A.
Author_Institution :
Dept. of Appl. Math., Tech. Univ. Nova Scotia, Halifax, NS, Canada
fDate :
7/1/1998 12:00:00 AM
Abstract :
An electrocardiogram (EGG) compression algorithm based on a combination of the Karhunen-Loeve transform (KLT) and multirate sampling is introduced. The use of multirate sampling reduces KLT computational times to those reported for wavelet-packet-based compression techniques. A beat-by-beat quality controlled compression criterion is shown to be necessary to ensure clinically adequate reconstruction of each beat. The resulting quality controlled algorithm efficiently achieves compression rates of approximately 30-40:1 for the MIT-BIH database.
Keywords :
electrocardiography; medical signal processing; quality control; transforms; Karhunen-Loeve transform-based quality controlled compression; beat-by-beat quality controlled compression criterion; clinically adequate reconstruction; compression rates; electrocardiogram compression algorithm; multirate sampling; quality controlled algorithm; single-lead ECG; Biomedical measurements; Databases; Eigenvalues and eigenfunctions; Electrocardiography; Error correction; Frequency; Karhunen-Loeve transforms; Mathematics; Sampling methods; Wavelet packets; Algorithms; Electrocardiography; Quality Control; Signal Processing, Computer-Assisted;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
