ECG data compression by sub-band coding
Date
1991
Editor(s)
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Instructor
Source Title
Electronics Letters
Print ISSN
0013-5194
Electronic ISSN
Publisher
Volume
27
Issue
4
Pages
359 - 360
Language
English
Type
Journal Title
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Volume Title
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Abstract
A data compression technique is presented for discrete-time electrocardiogram signals. The single lead electrocardiogram signal is decomposed into several multiresolution subsignals by using a quadrature mirror filter bank. The resultant subsignals are compressed according to their frequency contents using various coding methods, including a discrete cosine transform based technique and pulse code modulation with variable length coding. Compression ratios as high as 5.7 are obtained without introducing any visual distortion.
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Keywords
Codes, Symbolic - Applications , Information Theory - Data Compression , Mathematical Transformations - Applications , Discrete Cosine Transform , Discrete-Time Electrocardiogram Signals , ECG Data Compression , Multiresolution Sub-Signals , Quadrature Mirror Filter Bank , Sub-Band Coding , Biomedical Engineering