# Illumination invariant facial expression recognition using selected merged binary patterns for real world images

> Research article (Optik, 2018) · cited 48× · AI/ML

**Wikidata**: [openalex:W2782360958](https://www.wikidata.org/wiki/openalex:W2782360958)  
**Source**: https://4ort.xyz/entity/illumination-invariant-facial-expression-recognition-using-selected-merged-binary-patterns-for-real-world-images