Journal ArticleDOI
A wavelet transform-based ECG compression method guaranteeing desired signal quality
Jie Chen,Shuichi Itoh +1 more
TLDR
A new electrocardiogram compression method based on orthonormal wavelet transform and an adaptive quantization strategy, by which a predetermined percent root mean square difference (PRD) can be guaranteed with high compression ratio and low implementation complexity are presented.Abstract:
This paper presents a new electrocardiogram (ECG) compression method based on orthonormal wavelet transform and an adaptive quantization strategy, by which a predetermined percent root mean square difference (PRD) can be guaranteed with high compression ratio and low implementation complexity.read more
Citations
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Journal ArticleDOI
Wavelet transforms and the ECG: a review.
TL;DR: In this review, the emerging role of the wavelet transform in the interrogation of the ECG is discussed in detail, where both the continuous and the discrete transform are considered in turn.
Proceedings ArticleDOI
iSAX: indexing and mining terabyte sized time series
Jin Shieh,Eamonn Keogh +1 more
TL;DR: This work shows how a novel multi-resolution symbolic representation can be used to index datasets which are several orders of magnitude larger than anything else considered in the literature, allowing for the exact mining of truly massive real world datasets.
Journal ArticleDOI
ECG signal compression using analysis by synthesis coding
TL;DR: An electrocardiogram (ECG) compression algorithm, called analysis by synthesis ECG compressor (ASEC), is introduced and was found to be superior to several well-known ECG compression algorithms at all tested bit rates.
Journal ArticleDOI
Quality assessment of ECG compression techniques using a wavelet-based diagnostic measure
TL;DR: Comparative results with existing quality measures show that the new measure is insensitive to error variation, is accurate, and correlates very well with subjective tests.
References
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Journal Article
Fundamentals of the Decision of Optimum Factors in the ECG Data Compression (Special Section on ECG Data Compression)
Journal Article
Scalar Quantization Noise Analysis and Optimal Bit Allocation for Wavelet Pyramid Image Coding
Proceedings ArticleDOI
MULTIWAVE: a multiresolution wavelet-based ECG data compression algorithm
TL;DR: The performance of the MULTIWAVE algorithm is found to be superior to that of the TURNING POINT algorithm at all compression rates for all ECG records.
Book ChapterDOI
Application of a partitioned karhunen-loeve expansion scheme to ecg/vcg data compression
A.M. Zied,M. Edward Womble +1 more
Proceedings ArticleDOI
Scalar quantization noise analysis and optimal bit allocation for a wavelet pyramid image coding system
Jie Chen,S. Itoh,T. Hasimoto +2 more
TL;DR: A complete analysis for the reconstruction noise due to the scalar quantization of a wavelet pyramid image coding system is given, and it is shown that when the optimal bit allocation scheme is adopted, the reconstruction noises and the quantization noises of the wavelet Pyramid system become regular, and that the reconstructed noises can be approximated to stationary white noises.