Wavelet Packet and Matched Filter inspired QRS Detector

CARLOS M. PAIS; HUGO L. RUFINER

Congreso; VI Latin American Congress on Biomedical Engineering; 2014

Regional Council of Biomedical Engineering for Latin America (CORAL)

For the processing and analysis of the electrocardiogram (ECG), an increasing number of applications require real-time detection of the most prominent complex in the signal, the QRS. In this work we describe a new robust and on-line QRS detection algorithm. This new approach incorporate some classic concepts but has the distinction of being focused on finding the points of maximal similarity between the signal and an atom previously selected from a wavelet packet based dictionary. The proposed algorithm provides the advantage of robust and efficient QRS detection with relatively low computational effort, enabling real-time implementation on 8-bit microcontrollers for general use.