A new method based on down-sampling for QRS complexes detection / 生物医学工程学杂志
Journal of Biomedical Engineering
;
(6): 818-821, 2008.
Article
in Chinese
| WPRIM
| ID: wpr-342736
ABSTRACT
This paper presented a new method based on down-sampling for QRS complexes detection for the reason that ECG's frequency components mostly centralize 0.05-35 Hz. Firstly, the original ECG signals were down-sampled. Secondly, self adapting and self study theory were used to select the amplitude threshold and slope threshold for R-wave detection. At the same time, the refractory idiosyncrasy of heart was taken into account to reduce the misdetection. Thirdly, back-trace technique was used to reduce undetected error. Finally, the corresponding R-wave position was up-dated in the original ECG signals. The performance of the method was tested by MIT/BIH ECG database and the clinical data were collected from the affiliated hospital of Chongqing Medical University. The detection rate of 98% was achieved. Experimental results indicated that the method was simple, effective, accurate and unaffected on sample rate.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Algorithms
/
Signal Processing, Computer-Assisted
/
Sensitivity and Specificity
/
Electrocardiography
/
Methods
Type of study:
Diagnostic study
Limits:
Humans
Language:
Chinese
Journal:
Journal of Biomedical Engineering
Year:
2008
Type:
Article
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