28. The apparatus according to claim 22 , wherein the apparatus further comprises means for determining facial muscle actions of the face based on the emotion-sensitive features.
28. The apparatus according to claim 22 , wherein the apparatus further comprises means for determining facial muscle actions of the face based on the emotion-sensitive features. 29. The apparatus according to claim 28 , wherein the apparatus further comprises means for training a third machine so that the machine accepts the emotion-sensitive features as an input and computes a vector output where each component of the vector is the likelihood of the emotion-sensitive features arising from a specific facial muscle action.