Arrhythmia identification and classification method based on sparse representation and neural network
A neural network, sparse representation technique, used in character and pattern recognition, pattern recognition in signals, instrumentation, etc.
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[0079] The present invention will be further described below in conjunction with drawings and embodiments.
[0080] Such as figure 1 As shown, the arrhythmia recognition and classification method based on sparse representation and neural network provided by the present invention comprises the following steps:
[0081] (1) In the preprocessing stage, a sparse representation framework based on dictionary learning is used for noise detection and filtering. This framework mainly includes two parts, the detection of different noises and the filtering of corresponding noises.
[0082] a) In the detection of noise, it mainly detects the common baseline drift, power frequency interference and electromyographic interference in the ECG signal. Baseline drift noise in ECG signal belongs to low frequency noise, while power frequency interference and EMG interference belong to high frequency noise. The specific steps are as follows:
[0083] 1) In this step, a moving average filter is ...
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