Abstract—This paper presents a new Quality-Controlled, wavelet
based, compression method for electrocardiogram (ECG) signals.
Initially, an ECG signal is decomposed using the wavelet transform.
Then, the resulting coefficients are iteratively thresholded to
guarantee that a predefined goal percent root mean square difference
(GPRD) is matched within tolerable boundaries. The quantization
strategy of extracted non-zero wavelet coefficients (NZWC),
according to the combination of RLE, HUFFMAN and arithmetic
encoding of the NZWC and a resulting lookup table, allow the
accomplishment of high compression ratios with good quality
reconstructed signals
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