Journal ArticleDOI
ECG data compression techniques-a unified approach
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TLDR
The theoretical bases behind the direct ECG data compression schemes are presented and classified into three categories: tolerance-comparison compression, DPCM, and entropy coding methods and a framework for evaluation and comparison of ECG compression schemes is presented.Abstract:
Electrocardiogram (ECG) compression techniques are compared, and a unified view of these techniques is established. ECG data compression schemes are presented in two major groups: direct data compression and transformation methods. The direct data compression techniques are ECG differential pulse code modulation (DPCM) and entropy coding, AZTEC, Turning-point, CORTES, Fan and SAPA algorithms, peak-picking, and cycle-to-cycle compression methods. The transformation methods include Fourier, Walsh, and Karhunen-Loeve transforms. The theoretical bases behind the direct ECG data compression schemes are presented and classified into three categories: tolerance-comparison compression, DPCM, and entropy coding methods. A framework for evaluation and comparison of ECG compression schemes is presented. >read more
Citations
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Journal ArticleDOI
On lossy transform compression of ECG signals with reference to deformation of their parameter values.
TL;DR: It is found that ECG signals sampled at 400 Hz could be compressed to one fourth of their original storage space, but the values of their medical parameters changed less than 5% due to compression, which indicates reliable results.
Proceedings ArticleDOI
Wrist-located pulse detection using IR reflection due to pulse added volume of arterial blood
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A New Technique for Progressive ECG Transmission using Discrete Radon Transform
TL;DR: A new method which can be used for progressive transmission of electrocardiogram (ECG) using a discrete version of Radon Transform (DRT), which leads to transmit the most significant energy of the transformed image in Radon domain.
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Improving storage efficiency of vector quantization codebook for physiological quasi-periodic signals
Shaou-Gang Miaou,Kuang-Tai Chen +1 more
TL;DR: This paper explores the codebook (CB) redundancy in order to increase storage efficiency for physiological quasi-periodic signals and proposes a quantitative CB redundancy measure and two redundancy reducing algorithms.
Ecg recorder sampling at the variable rate
TL;DR: This paper discusses practical aspects of implementation of the signal-dependent adjustable subband coding in a real-world portable long-term digital recorder and the methodological consequences of the use of the fixed-point data representation.
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