# Optimized Scale-Invariant Feature Transform with Local Tri-directional Patterns for Facial Expression Recognition with Deep Learning Model

> Research article (The Computer Journal, 2021) · cited 12× · AI/ML

**Wikidata**: [openalex:W3177900482](https://www.wikidata.org/wiki/openalex:W3177900482)  
**Source**: https://4ort.xyz/entity/optimized-scale-invariant-feature-transform-with-local-tri-directional-patterns-for-facial-expression-recognition-with-d