Construction method of children dynamic facial expression database

The invention discloses a method for constructing a child dynamic facial expression database, and relates to the technical field of methods for constructing the child dynamic facial expression database, and the method comprises the following steps: S1, data collection: recording facial expression actions of a child in different emotional states; s2, data preprocessing: using an image processing technology to preprocess the collected children facial expression dynamic image, including noise removal, data smoothing and facial feature point alignment; s3, data labeling: labeling the collected data, and labeling the facial expression category of each frame and each time period; according to the method, the database containing the facial expression data in different emotional states is constructed by collecting, preprocessing and labeling the facial expression actions of the children, the method can be used for research and application in the fields of children emotion recognition and emotion analysis, meanwhile,