摘要
由于心脏活动的有序性和各心电活动周期波形的相似性 ,各心电活动周期波形的DCT(离散时间余弦变换 )分量也具有一定的相似性。根据这一特点 ,本文提出了在首先使用DCT压缩心电图 (ECG)数据的基础上 。
Due to the regularity of activity of the heart and similarity among each period of ECG signal, there is high correlation between DCT coefficients of every two consecutive frames of ECG data. Using these characteristics, we presented a compression method for ECG data, by which we could get a higher compression ratio (CR) than that just via DCT alone.
出处
《中国生物医学工程学报》
EI
CAS
CSCD
北大核心
2002年第5期456-460,共5页
Chinese Journal of Biomedical Engineering
