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Fig. 3 | BMC Medical Informatics and Decision Making

Fig. 3

From: Comparing different wavelet transforms on removing electrocardiogram baseline wanders and special trends

Fig. 3

Heatmap of MSEs across different wavelets and frequencies. a all the WTs with wavelet coefficients set to zero for levels 9–11 and wavelet coefficients at levels 1 to 8 were preserved (lv1–8); b all the WTs with wavelet coefficients set to zero for levels 1 and 9–11 and wavelet coefficients at levels 2 to 8 were preserved (lv2–8); c all the WTs with wavelet coefficients set to zero for levels 1–2 and 9–11 and wavelet coefficients at levels 3 to 8 were preserved (lv3–8); d all the WTs with wavelet coefficients set to zero for levels 8–11 and wavelet coefficients at levels 1 to 7 were preserved (lv1–7); e all the WTs with wavelet coefficients set to zero for levels 10–11 and wavelet coefficients at levels 1 to 9 were preserved (lv1–9)

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BMC Medical Informatics and Decision Making

ISSN: 1472-6947

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