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Facial Feature Recognition. D1: opening of the eye. D2: outdistance between the interior corner of the eye and the eyebrow. D3: opening of the mouth in width. D4 : opening of the mouth in height. D5 : outdistance between the eye and eyebrow.
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D1: opening of the eye. • D2: outdistance between the interior corner of the eye and the eyebrow. • D3: opening of the mouth in width. • D4: opening of the mouth in height. • D5: outdistance between the eye and eyebrow. • D6: outdistance between the corner of the mouth and the external corner of the eye
Right Eye • D1=|27-28| • D2=|12-23| • D3=|3-4| • D4=|54-55| • D5=|0-16| • D6=|3-23|
Left Eye • D1=|31-32| • D2=|15-26| • D3=|3-4| • D4=|54-55| • D5=|1-17| • D6=|4-26|
Reference • Ammar, et al. (2010), ‘The Affective Tutoring System’, Expert Systems with Applications, 37, pp.3013-3023.