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

页码：539 / 542

页数：4

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