Difficult electrocardiogram main wave identifying and positioning method based on multi-lead cluster analysis

The invention discloses a difficult electrocardiogram main wave identifying and positioning method based on multi-lead cluster analysis. The method comprises the following steps: a), preprocessing; b), finding out the positive R wave position and the negative Q or S wave (or QS) position; c), performing comparison to preliminarily determining the positions of the main waves; d), performing calibration to determine the positions of the main waves. Inner correlation between leads is considered, and a clustering method is utilized for identifying and positioning the positions of the difficult electrocardiogram main waves; the method is easy to understand and implement and higher in positioning precision. 本发明公开了一种基于多导联聚类分析的疑难心电图主波识别定位方法，包括：a)预处理；b)找出正向R波位置及负向的Q或S波(或QS)位置；c)比较，初步定出主波位置；d)校准，确定主波位置。本发明通过考虑导联之间的内在相关性，利用聚类方法对疑难心电图主波位置进行了识别定位，易于理解，容易实现，定位精度较高。