Patent Document ID: 8879854
Application ID: 13278658

Base Claim:
1. A method for recognizing an emotion of an individual based on Action Units (AUs), the method comprising: receiving an input AU string including one or more AUs that represents a facial expression of an individual from an AU detector; comparing the input AU string with each of a plurality of AU strings, each of the plurality of AU strings includes a set of a same number of AUs that are most discriminative of a respective one of a plurality of emotions; identifying an AU string from the plurality of AU strings that best matches the input AU string; and outputting an emotion label corresponding to the best matching AU string that indicates the emotion of the individual.

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Claim 2:
2. The method of claim 1 , wherein identifying the AU string from the plurality of AU strings that best matches the input AU string comprises: determining a common subsequence between the input AU string and each of the plurality of AU strings; and identifying a longest common subsequence from the determined common sub-sequences, wherein the longest common subsequence is indicative of a greatest amount of similarity between the input AU string and one of the plurality of AU strings.