基于模板匹配和改进的快速LADT结合的心电数据压缩算法  

ECG Data Compression Based on the Combination of Template Matching and Improved Quick Fitting of LADT

作　　者：王鸿鹏[1] 闫晓伟[1] 杨孝宗[2] 戴博[1] 张帆[1] 

机构地区：[1]哈尔滨工业大学深圳研究生院,广东深圳518055 [2]哈尔滨工业大学,哈尔滨150001

出　　处：《北京生物医学工程》2006年第5期449-453,共5页Beijing Biomedical Engineering

基　　金：国防"十五"预研项目(0141316.4.2)资助

摘　　要：性能优越的心电数据压缩算法,必须具备较快的处理速度、较高的压缩比和较理想的恢复精度,而三者通常是相互矛盾、相互制约的,实际应用中只能取折衷方案。现有的心电数据压缩算法不能在这三方面同时取得理想的效果,只能根据需要满足某一方面的需求。基于模板匹配和改进的快速LADT结合的心电数据压缩算法,吸收了模板匹配和改进的快速LADT算法的优点,并对算法实现的关键技术作了进一步的改进。介绍了模板匹配和改进的快速LADT算法的基本原理,实现步骤和关键技术,并对其应用前景作了预测。An ECG data compression algorithm with superior performance must possess quicker processing speed, higher compression ratio and higher resume precision. Because the three factors are usually contradictory and restrict with each other, we can only fetch compromises in practical application. The existing ECG data compression algorithm can＇ t make the ideal result meanwhile in three factors, can only be satisfied in a sort of way. The ECG data compression based on the template matching and improved quick fitting of LADT absorbed the advantages of both, and the key technologies in this algorithm was further improved. The basic principle of template matching and improved quick fitting of LADT, the realization and key technologies of new algorithm are introduced, and the application foreground is forecasted.

关 键 词：心电数据压缩 模板匹配 LADT 残差信号 相关系数 

分 类 号：R318.04[医药卫生—生物医学工程]