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A novel and simple quality controlled ECG compression algorithm is proposed using Wavelet energy based diagnostic distortion (WEDD) measure, which localizes the error between the original and the reconstructed signals in the feature space. The compression algorithm is based on Wavelet transform, energy based thresholding and an adaptive quantization scheme. The quality control criterion allows clinically...
An effective method for electrocardiogram (ECG) compression is proposed. It is based on the pyramidal digital wavelet transform. The resulting wavelet coefficients are thresholded iteratively until a user-specified percentage root-mean-square difference is matched. In the next step, the nonzero coefficients of the thresholded vector are quantized adaptively by the linear quantizer of the lowest possible...
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