In this paper, experimental verification is performed in which separability of male and female can be
confirmed in terms of opposite emotion classification. Comparing previous works, our proposed method try
to achieve more reliable result by considering variability of gender and ocular features.
As ocular features for emotion classification, pupil size, pupil accommodation rate, blink frequency, and
eye closed duration were used. To analyze precisely, individual variation of ocular feature values are
normalized then auditory emotion stimuli is used. In detail, the used stimuli induce two opposite emotion
pairs such as 'positive-negative' and 'arousal-relaxation'.
Experimental verification on ocular features variation in terms of emotion stimuli and gender
At result, both male and female, pupil accommodation rate and blink frequency were statistically
significant features for classification between arousal-relaxation. Also, for classification between
positive-negative, eye closed duration was the significant features on male, and eye blink frequency was the
significant features on female.