Fixed percentage of wavelet coefficients to be zeroed for ECG compression

ECG compression with retrieved quality guaranteed

“…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.Introduction: Several wavelet-based ECG compression methods have recently been developed that report good performance [1][2][3]. Among the reported algorithms, those based on wavelet coefficient thresholding have been shown to be efficient and yield high compression ratios (CRs) [3].…”

“…Introduction: Several wavelet-based ECG compression methods have recently been developed that report good performance [1][2][3]. Among the reported algorithms, those based on wavelet coefficient thresholding have been shown to be efficient and yield high compression ratios (CRs) [3].…”

“…Among the reported algorithms, those based on wavelet coefficient thresholding have been shown to be efficient and yield high compression ratios (CRs) [3]. In this Letter, we present an easy to use and efficient ECG compression scheme based on an M-channel maximally decimated filter bank with a parallel structure [4] that guarantees the quality of the retrieved signal.…”

Performance Analysis of ECG Signal Compression using SPIHT

“…8, 10, 14, 18, 22, 26, 28, and 30. The second experiment was intended to compared the performance of proposed method with four other previous methods proposed by Alshamali[18], Benzid [25], Blanco [26], Lu [4]. For the second experiment, we used the second dataset, which includes the same records from MIT-BIH arrhythmia database as used in their experiment.…”

“…proposed by [18], [25], [26], and [4], respectively. The same fact occurred at the range of 14~16 compression rates, the mean of PRD of the proposed method is 2.82, while the other methods generate higher distortion, i.e.…”