KLT-based quality controlled compression of single-lead ECG.
An electrocardiogram (ECG) 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.
Blanchett
T
T
Department of Applied Mathematics, Technical University of Nova Scotia, Halifax, Canada.
Kember
G C
GC
Fenton
G A
GA
D000465:Algorithms; D004562:Electrocardiography; D011786:Quality Control; D012815:Signal Processing, Computer-Assisted