Local gradient increasing pattern for facial expression recognition

@inproceedings{Lubing2012LocalGI,
  title={Local gradient increasing pattern for facial expression recognition},
  author={Zhou Lubing and Wang Han},
  booktitle={ICIP 2012},
  year={2012}
}
This paper presents a new facial descriptor for facial expression recognition based on the Local Gradient Increasing Pattern (LGIP). A LGIP feature is to encode the intensity increasing trends in eight directions at each pixel using eight binary bits, and then a decimal code is assigned to describe the over-all increasing trend. The facial descriptor is generated from grid-based regional LGIP histograms. Subsequently, Support Vector Machine classifier is used for multi-class expression… CONTINUE READING