R Wave Extraction Based on the Maximum First Derivative plus the
Maximum Value of the Double Search
Wen-po Yao1, Wen-li Yao2,Min Wu1, Tie-bing Liu1
1. Nanjing General Hospital of Nanjing
Military Command, Nanjing 210002,
Jiangsu Province, China; 2.China
University of Mining and Technology,
Xuzhou 221116, Jiangsu Province,
China
摘要R-wave detection is the main approach for heart rate variability analysis and clinical
application based on R-R interval. The maximum first derivative plus the maximum value of the double
search algorithm is applied on electrocardiogram (ECG) of MIH-BIT Arrhythmia Database to extract R
wave. Through the study of algorithm's characteristics and R-wave detection method, data segmentation
method is modified to improve the detection accuracy. After segmentation modification, average
accuracy rate of 6 sets of short ECG data increase from 82.51% to 93.70%, and the average accuracy rate
of 11 groups long-range data is 96.61%. Test results prove that the algorithm and segmentation method
can accurately locate R wave and have good effectiveness and versatility, but may exist some undetected
problems due to algorithm implementation.
Wen-po Yao1, Wen-li Yao2,Min Wu1, Tie-bing Liu1. R Wave Extraction Based on the Maximum First Derivative plus the
Maximum Value of the Double Search[J]. 中国医疗设备, 2016, 31(10): 1-5.
. . China Medical Devices, 2016, 31(10): 1-5.