Table 4.

Classification performances of different feature representations for the set of basic emotions. PO—Positions and orientation, upper and lower body, POU—Positions and orientation, upper body, P—Positions, upper and lower body, O—Orientation, upper and lower body, PU—Positions, upper body, OU—Orientation, upper body.

Features Set	PO		POU		P		O		PU		OU
#Emotions / #Classes	6	4	6	4	6	4	6	4	6	4	6	4
CNN	50.5	55.2	51.5	55.5	54.2	63.6	47.8	50.5	53.7	60.7	47.4	49.2
RNN	54.4	66.8	58.6	70.8	59.2	80.8	39	55.2	54.4	66.8	40	57.2
RNN-LSTM	66.2	80	59.6	74.2	72	82.7	51.8	62.4	64.6	75.8	47.4	58.9
ResNet20	-	-	-	-	30.6	40.2	-	-	30.1	39.7	-	-