摘要
讨论了从心电图的扫描图像中获取心电数据的轨迹跟踪算法 ,针对心电数据提取时所遇到的交叉、断线和网格线的干扰等问题 ,提出了搜索预测和折线模型相结合的新算法。详细讨论了在实际心电图处理中可能遇到的两种情况 ,分别建立了各自的折线模型。同时进一步考虑了心电数据提取的后处理滤波工作 ,提出并分析了基于
This paper presents a discussion on the tracing algorithms of the extraction of Electrocardiogram (ECG) data from scanned image of hardcopy ECG. We have advanced a new algorithm integrated by seek-and-predict method and polygon model method, which can tolerate crossing of two leads, fault-line and disturbing of grid lines. Two practical situations that may be encountered while processing hardcopy ECG are discussed in detail. Furthermore, the after-treatment of extraction-filtering is considered and an SVD-based filter designed to smooth ECG signal is analyzed.
出处
《生物医学工程学杂志》
EI
CAS
CSCD
2001年第2期306-308,325,共4页
Journal of Biomedical Engineering
关键词
心电图
扫描图像
轨迹跟踪
Algorithms
Image retrieval
Mathematical models
Scanning
