ECG compression with retrieved quality guaranteed
ECG compression with retrieved quality guaranteed
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DOI：
10.1049/el:20046382
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发表时间：
2004-11-11
影响因子：
1.1
通讯作者：
Barner, KE
中科院分区：
文献类型：
--
作者：
Blanco-Velasco, M;Cruz-Roldán, E;Barner, KE
提出了一种基于滤波器组的心电压缩算法。该方法利用一个近乎完美的重构余弦调制滤波器组将输入信号分成几个子带信号，然后通过阈值量化和霍夫曼编码。所提出的方法的优点是，阈值的选择，使检索信号的质量得到保证。结果表明，实现的压缩比是一个改进，通过以前报道的阈值为基础的算法。
A filter bank-based algorithm for ECG compression is developed. The proposed method utilises a nearly-perfect reconstruction cosine modulated filter bank to split the incoming signals into several subband signals that are then quantised through thresholding and Huffman encoded. The advantage of the proposed method is that the threshold is chosen so that the quality of the retrieved signal is guaranteed. It is shown that the compression ratio achieved is an improvement over those obtained by previously reported thresholding-based algorithms.