# Design and Implementation of Remote Facial Expression Recognition Surveillance System Based on PCA and KNN Algorithms

> Research article (2015 International Conference on Intelligent Information Hiding and Multimedia Signal Processing (IIH-MSP), 2015) · cited 18× · AI/ML

**Wikidata**: [openalex:W2292037629](https://www.wikidata.org/wiki/openalex:W2292037629)  
**Source**: https://4ort.xyz/entity/design-and-implementation-of-remote-facial-expression-recognition-surveillance-system-based-on-pca-and-knn-algorithms