# Efficient facial expression recognition using histogram of oriented gradients in wavelet domain

> Research article (Multimedia Tools and Applications, 2018) · cited 86× · AI/ML

**Wikidata**: [openalex:W2801973746](https://www.wikidata.org/wiki/openalex:W2801973746)  
**Source**: https://4ort.xyz/entity/efficient-facial-expression-recognition-using-histogram-of-oriented-gradients-in-wavelet-domain