Patent ID: 11875603
Assignee: PURDUE RESEARCH FOUNDATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 4:
5. A method, comprising:
capturing an image of a target face;
selecting an image of a neutral face corresponding to the target face;
determining a plurality of facial landmarks in the image of the target face and a plurality of facial landmarks in the image of the neutral face;
selecting a facial action unit;
determining a difference between a selected landmark from the plurality of facial landmarks in the image of the target face and a corresponding landmark from the plurality of landmarks in the image of the neutral face, wherein movement of the selected landmark is associated with the facial action unit;
determining that the facial action unit occurred based on the difference satisfying a condition, and
determining an expression of the target face based on the determining that the facial action unit occurred,
wherein determining the expression of the target face comprises determining at least one of an emotion, an amount of pain, a mental condition, or a truthfulness of the target face.