Facial expression recognition method based on complexity perception classification algorithm
A facial expression and classification algorithm technology, which is applied in the field of image recognition, can solve the problems of different facial feature distribution and feature complexity, and achieve the effect of alleviating the inconsistency of sample feature distribution, improving accuracy, and alleviating misclassification of easily confused expression categories
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[0028] This embodiment provides a facial expression recognition method based on a complexity-aware classification algorithm, the flow chart of the method is as follows figure 1 shown, including the following steps:
[0029] S1, the facial expression images from the facial expression data set Fer2013 are cut, whitened, normalized and preprocessed as a training data set;
[0030] S2. Design a deep convolutional neural network based on the improved residual block to train the training data set and extract facial features;
[0031] S3. According to the complexity-aware classification algorithm, by evaluating the complexity of the facial features extracted from the training data set, the training data set is divided into an easy training sample set and a difficult training sample set, and the two types of sub-sample sets are respectively Train an easy sample classifier and a hard sample classifier;
[0032] S4. Mark the {+} label on the easy training sample set and the {-} label ...
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