Multi-lead ECG data compression with orthogonal expansions: KLT and wavelet packets

被引：6
|
作者：
Olmos, S [1 ]
Laguna, P [1 ]
机构：
[1] Univ Zaragoza, Elect & Commun Engn Dept, Zaragoza 50015, Spain
来源：
COMPUTERS IN CARDIOLOGY 1999, VOL 26 | 1999年 / 26卷
关键词：
D O I：
10.1109/CIC.1999.826027
中图分类号：
R5 [内科学];
学科分类号：
1002 ; 100201 ;
摘要：
In this paper we present the extension of transform coding compression methods to multilead ECG recordings in order to reduce the inter-lead correlation. Two orthogonal expansions are considered: the Karhunen-Loeve transform and a fast approximation of it based on wavelet packets, also known as best basis algorithm. The multilead compression algorithm with wavelet packets achieves an average compression ratio of 30.5:1 in two-lends records from MIT-BIH Arrythmia database, in contrast to 21.4:1 for the single-lead algorithm with the same distortion. Better results could be obtained in ECG recordings with more than two leads.
引用
收藏
页码：539 / 542
页数：4
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