Patent ID: 11967175
Assignee: CENTRAL CHINA NORMAL UNIVERSITY
Field: Computer technology (Electrical engineering)
Classification: CPC G  Y | IPC G

Claim 1:
2. The facial expression recognition method combined with the attention mechanism according to claim 1, wherein correcting the facial picture in each of the video frames on the basis of location information of the facial feature point of the facial picture in each of the video frames, so that the facial picture in each of the video frames is aligned relative to the plane rectangular coordinate system comprises:
detecting a plurality of facial expression feature points in the facial picture in each of the video frames, the plurality of facial expression feature points are respectively distributed in an eye area, an eyebrow area, a nose area, a mouth area and a facial contour area;
determining a position of a middle point of a face in the facial picture based on a feature point in the eye area and a feature point in the eyebrow area in the facial picture in each of the videos, and aligning the facial picture based on the position of the middle point of the face; the aligning is alignment relative to the plane rectangular coordinate system, and two sides of the aligned facial picture are respectively parallel to two axes of the plane rectangular coordinate system.