# Facial expression recognition based on image pyramid and single-branch decision tree

> Research article (Signal Image and Video Processing, 2017) · cited 27× · AI/ML

**Wikidata**: [openalex:W2569698037](https://www.wikidata.org/wiki/openalex:W2569698037)  
**Source**: https://4ort.xyz/entity/facial-expression-recognition-based-on-image-pyramid-and-single-branch-decision-tree