Table 4 Classification report for the ML facial expression recognition model evaluated on the facial expressions performed in a still scenario.

From: Towards smart glasses for facial expression recognition using OMG and machine learning

Expression type

Precision

Recall

f1-score

Neutral

0.96

0.98

0.97

Smile

0.93

0.91

0.92

Frown

0.97

0.89

0.93

Eyebrow raise

0.92

0.93

0.93

Squeezed eyes

0.92

0.94

0.93

Accuracy

  

0.95

Macro average

0.94

0.93

0.93