# Non-rigid registration based model-free 3D facial expression recognition

> Research article (Computer Vision and Image Understanding, 2017) · cited 27× · AI/ML

**Wikidata**: [openalex:W2737897248](https://www.wikidata.org/wiki/openalex:W2737897248)  
**Source**: https://4ort.xyz/entity/non-rigid-registration-based-model-free-3d-facial-expression-recognition