Micro-expression recognition method based on active migration learning

The invention relates to a micro-expression recognition method based on active migration learning. The method comprises the following steps: (1) extracting micro-expression and micro-expression features; (2) establishing and solving a micro-expression active migration learning problem; (3) recognizing a microexpression. Based on the internal relation between macro expressions and micro expressions, a bridge between macro expressions and micro expressions is constructedthrough an asymmetric linear translator. Less labeled samples are adopted during the initial stage of the active learning. By means of the above translator, the supervision information of the macro-expression domain can be utilized by micro expressions in thetransformation domain. As a result, a high-quality sample can be selected for the active learning in the micro-expression domain. After the sample is manually marked, the sample is added to an existing training set. Therefore, a more effective classifier is obtained through training. 本发明涉及种基