Expression recognition method based on progressive classification
A facial expression recognition, progressive technology, applied in the field of image recognition, can solve the problems of accurate improvement, the accuracy of facial expression recognition that cannot be easily confused, and achieve the effect of reducing impact, reducing false recognition rate and improving accuracy.
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[0023] Such as figure 1 Shown, a kind of method based on the facial expression recognition method of progressive classification, comprises the following steps:
[0024] 1. Input the image to be recognized and perform enhanced preprocessing on it;
[0025] Specifically, the specific operation is: perform face detection on the expression image, and obtain the face image in the expression image; perform image enhancement by random horizontal flipping and random cropping into an image with a size of 44×44 pixels; Image expansion is achieved by cutting the four corners of the image and the center point.
[0026] 2. Construct two-level image tags. The first-level image tags divide expressions into confusing expressions and less-confusing expressions, and the second-level image tags are specific expressions;
[0027] Specifically, after constructing the two-level tags, they are named after 0 and 1 respectively, among which, 0 is the unconfusing expression label set, and 1 is the ea...
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