Multilead ECG data compression using SVD in multiresolution domain

Sibasankar Padhy

doi:10.1016/j.bspc.2015.06.012

2016-01-01

PRE

Sibasankar Padhy *

L. N. Sharma

Samarendra Dandapat

DOI：10.1016/j.bspc.2015.06.012

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摘要

En 中文

In this paper, multilead electrocardiogram (MECG) data compression using singular value decomposition in multiresolution domain is proposed. It ensures a high compression ratio by exploiting both intra-beat and inter-lead correlations. A new thresholding technique based on multiscale root fractional energy contribution is proposed. It selects the singular values depending on the clinical importance of the wavelet subbands. The proposed method is evaluated with the PTB Diagnostic ECG database. This compression method is embedded with a pulse amplitude modulated direct sequence-ultra wideband technology for transmission of the MECG data. This may be useful in telemonitoring services for the wireless body sensor network. A comparative study of computational time complexity has also been carried out. The results show that the proposed method can be executed at least three times faster than the existing methods. The storage efficiency is enhanced by 19 times using this method. (C) 2015 Elsevier Ltd. All rights reserved.

Keyword:

Multilead ECG (MECG)

Multiscale SVD (MSVD)

Multiscale relative energy density (MRED)

DWT

MECG compression

Wireless body sensor network (WBSN)

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期刊

Biomedical Signal Processing and Control

IF:

4.9

论文数:

9.9K

被引数:

2.4W

机构

indian institute of technology system (iit system)

学者数:

9.5W

论文数: 9.9W

被引数: 93

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