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

Claim 5:
6. The facial expression recognition method combined with the attention mechanism according to claim 1, further comprising:
calculating a self-attention weight of an expression of a single frame on a space dimension through a fully connected layer and an activation function(sigmoid), assigning the weight to the spatial feature, and obtaining a spatial attention feature vector;
passing through an average pooling layer, 2D convolution layer(with kernel size 3×3 and padding size 1), and the sigmoid activation function on spatial attention features of a plurality of frames, extracting an attention weight on a frame dimension, and performing feature fusion on the features of the frames, calculating expression change features between the adjacent frames, and obtaining a fused feature vector fused with a space-time attention weight.