An accurate QRS detection and R peak location algorithm based on local derivative

ZHAO Kai; YAN Wei-hong; LI Yong-fu

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An accurate QRS detection and R peak location algorithm based on local derivative

更新时间：2026-09-04

- An accurate QRS detection and R peak location algorithm based on local derivative
- Vol. 38, Issue 2, Pages: 1-6(2021)
- 作者机构：
  
  上海交通大学微纳电子学系,上海,200240
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2021
- 稿件说明：
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赵恺, 晏炜宏, 李永福. 基于局部方差的QRS波群和R峰检测算法[J]. 微电子学与计算机, 2021, 38(2): 1-6.

ZHAO Kai, YAN Wei-hong, LI Yong-fu. An accurate QRS detection and R peak location algorithm based on local derivative[J]. 2021, 38(2): 1-6.
赵恺, 晏炜宏, 李永福. 基于局部方差的QRS波群和R峰检测算法[J]. 微电子学与计算机, 2021, 38(2): 1-6. DOI：

ZHAO Kai, YAN Wei-hong, LI Yong-fu. An accurate QRS detection and R peak location algorithm based on local derivative[J]. 2021, 38(2): 1-6. DOI：

摘要

在与心电图相关的前沿应用中，需要获得心电图中QRS波群和R峰的准确位置，但现有的QRS波群检测算法在干扰条件下准确度不足.针对这个问题，提出了一种能准确检测QRS波群和R峰的方法.该方法先使用一种基于局部方差的非线性变换对心电图中的QRS波群进行增强，然后基于已被检测到的QRS波群的信息来设置动态阈值找出新的QRS波群，最后，一种准确的R峰识别方法被用来找到R峰的位置.相对于现有的算法，该算法在多个开源心电数据库上达到了较高的性能，并对QT数据库达到99.98%的灵敏度，99.94%的真阳率，和0.08%的误检率.

Abstract

Advanced electrocardiogram analytic applications

such as heart rate variability analysis

generally require accurate detection of R peaks and QRS complexes

simultaneously

but the existing methods are not accurate enough under interference. To address the problem

we propose a method to detect the accurate positions of QRS complexes and R peaks. The proposed algorithm begins with a non-linear transformation to enhance QRS complexes in electrocardiogram signal

and dynamic thresholds are calculated based on the detected QRS complexes to detect the new QRS complexes

and finally

an accurate R-peak identifier function is used to locate R peaks. Compared with the existing algorithms

the proposed algorithm achieves a better performance on several open-source electrocardiogram databases. It achieves 99.98% sensitivity

99.94% positive predictivity and 0.08% detection error rate on QT Database.

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references

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