# A Region Histogram of Oriented Optical Flow (RHOOF) feature for apex frame spotting in micro-expression

> Research article (2017 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS), 2017) · cited 34× · AI/ML

**Wikidata**: [openalex:W2783778128](https://www.wikidata.org/wiki/openalex:W2783778128)  
**Source**: https://4ort.xyz/entity/a-region-histogram-of-oriented-optical-flow-rhoof-feature-for-apex-frame-spotting-in-micro-expression