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Electrocardiogram baseline removal

  • US 9,480,411 B2
  • Filed: 06/07/2012
  • Issued: 11/01/2016
  • Est. Priority Date: 09/08/2011
  • Status: Active Grant
First Claim
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1. A system comprising:

  • a low-pass filter configured to receive and process a first electrocardiogram signal, the low-pass filter removing at least high frequency components of the first electrocardiogram signal thereby producing a filtered first electrocardiogram signal;

    a down-sampler configured to reduce a sampling rate of the filtered first electrocardiogram signal;

    a Savitzky-Golay filter configured to estimate a baseline variation of the first electrocardiogram signal from the down-sampled filtered first electrocardiogram signal;

    an up-sampler configured to increase a sampling rate of the baseline variation;

    a delay module configured to time shift the first electrocardiogram signal thereby producing a time shifted first electrocardiogram signal; and

    a combination module configured to combine the time shifted first electrocardiogram signal and the up-sampled baseline variation thereby producing a second electrocardiogram signal with the baseline variation removed;

    wherein the second electrocardiogram signal is provided by at least one of displaying the second electrocardiogram signal in an electronic visual display, transmitting the second electrocardiogram signal to a remote computing system, storing the second electrocardiogram signal in a physical storage media, or loading the second electrocardiogram signal into memory.

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