title: KLT-based quality controlled compression of single-lead ECG.
abstract: 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.
authors.affiliation: Department of Applied Mathematics, Technical University of Nova Scotia, Halifax, Canada.
authors.forename: T
authors.initials: T
authors.lastname: Blanchett
authors.forename: G C
authors.initials: GC
authors.lastname: Kember
authors.forename: G A
authors.initials: GA
authors.lastname: Fenton
mesh_terms: D000465:Algorithms; D004562:Electrocardiography; D011786:Quality Control; D012815:Signal Processing, Computer-Assisted