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Table 2 Recognition rates (%) for person-dependent facial expression recognition. The best recognition rates are highlighted in bold

From: Non-frontal facial expression recognition based on salient facial patches

Head pose

HOG

LBP

Gabor

90°

97.92

96.67

95.83

45°

99.17

98.75

98.33

100

100

100

− 45°

100

98.75

99.58

− 90°

98.33

99.17

96.25