Application of the Max-Lloyd quantizer for ECG compression in diving mammals

M. Rodríguez; A. Ayala; S. Rodríguez; F. Rosa; Mario Díaz-González

doi:10.1016/S0169-2607(03)00016-6

Application of the Max-Lloyd quantizer for ECG compression in diving mammals

M. Rodríguez
, A. Ayala
, S. Rodríguez
, F. Rosa
, Mario Díaz-González

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

This article presents a practical implementation of an ECG compression algorithm using a Max-Lloyd quantizer, to optimize the low resources of an ECG acquisition and transmission system (telemetry system) for dolphins and human divers. The algorithm scheme is based on a first-order differential pulse code modulation (DPCM) and uses a Max-Lloyd quantizer to code the difference between the current and predicted samples. The use of the non-uniform quantizer instead of a uniform quantizer improves the percent root mean-square difference (PRD), thereby producing a low distortion in the reconstructed signals. Due to its low computational complexity, the compression process can be accomplished on-line during the ECG acquisition process.

Original language	English
Pages (from-to)	13-21
Number of pages	9
Journal	Computer Methods and Programs in Biomedicine
Volume	73
Issue number	1
DOIs	https://doi.org/10.1016/S0169-2607(03)00016-6
State	Published - Jan 2004
Externally published	Yes

Funding

We wish to thank to the staff of the aquatic park LORO PARQUE (Tenerife, Spain) for their co-operation and technical support in the use of trained dolphins. This research was funded by grant number 226-57/97 from Universidad de La Laguna (Tenerife, Spain).

Keywords

DDC
DPCM
Data compression
Diving physiology
ECG

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10.1016/S0169-2607(03)00016-6

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abstract = "This article presents a practical implementation of an ECG compression algorithm using a Max-Lloyd quantizer, to optimize the low resources of an ECG acquisition and transmission system (telemetry system) for dolphins and human divers. The algorithm scheme is based on a first-order differential pulse code modulation (DPCM) and uses a Max-Lloyd quantizer to code the difference between the current and predicted samples. The use of the non-uniform quantizer instead of a uniform quantizer improves the percent root mean-square difference (PRD), thereby producing a low distortion in the reconstructed signals. Due to its low computational complexity, the compression process can be accomplished on-line during the ECG acquisition process.",

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Application of the Max-Lloyd quantizer for ECG compression in diving mammals

Abstract

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Keywords

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