# Facial expression recognition using distance and shape signature features

> Research article (Pattern Recognition Letters, 2017) · cited 56× · AI/ML

**Wikidata**: [openalex:W2653077995](https://www.wikidata.org/wiki/openalex:W2653077995)  
**Source**: https://4ort.xyz/entity/facial-expression-recognition-using-distance-and-shape-signature-features