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bci-ii-iii-preprocesamiento's Introduction

Preprocesamiento BCI II-III

El preprocesamiento es el siguiente:

Subconjuntos.m --> Car.m --> FiltroPasaBanda.m --> AcomodarDatos.m

Subconjuntos.m

Obtenemos los 6 seg de MI del segundo 3 al 9

  • Input: (dataset_BCIcomp1.mat)
  • Output: (MI_train/test.mat)
  • Input Shape: (9x128)x3x140 [(seg x fs) x n canales x n muestras]
  • Output Shape: (140x6x128)x3 [(n muestras x seg x fs) x n canales]

Car.m

Referencia CAR (common average reference)

  • Input: (MI_train/test.mat)
  • Output: (Car_train/test.mat)
  • Input shape: (n_muestra * 768)x3
  • Output shape: (n_muestra * 768)x3

FiltroPasaBanda.m

Filtro pasa banda de 8Hz-30Hz

  • Input: (Car_train/test.mat)
  • Output: (Filtradas_train/test.mat)
  • Input shape: (n_muestra * 768)x3
  • Output shape: (n_muestra * 768)x3

AcomodarDatos.m

Acomodar los datos para que queden concatenados los canales [n_muestras, n_canales]

  • Input: (FiltradasBab.mat)
  • Output: (MI-EEG-Bab.csv) es para el entrenamiento de los modelos
  • Input shape: (n_muestras * 768)x3
  • Output shape: n_muestras * 2304

Las filas son el numero de muestras (140) y las columnas son los 6 seg de los 3 canales concatenados (2304)

Etiquetas.m

Unir etiquetas

  • Input: (dataset_BCIcomp1.mat/labels_data_set_iii.mat)
  • Output: (etiquetas_train/test.csv)

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