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gianba / SeizureDetection

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Pre-filter the eeg signal #2

Closed scheuchzer closed 10 years ago

scheuchzer commented 10 years ago

The filtering could be done right at the beginning of featureExtraction which affects all features or only in the getFrequencyFeature method. Which filters should be used? Band-pass (1Hz/60Hz)?

zadsas commented 10 years ago

Filtering raw signal at the beginning of featureExtraction improves cross validation results for Patient 2, but only the probability of seizure, the probability of early seizure diminishes slightly. However, the computation time increases dramatically. Around 2 hours were needed to finish Patient 2.

zadsas commented 10 years ago

Tried low pass and notch filter and no improvement. Closing.