A Systematic Literature Review of Recognition of Compound Facial Expression of Emotions

Abstract

Recently, emotion recognition has gained increasing attention in various fields. Human facial expression plays key role in daily interaction among people. The understanding of different categories of facial expression is crucial in perceptual interfaces, computational models, and human cognition and even in every field of life. The basic facial expression of emotions is categorized into seven groups which are including neutral, disgust, fear, anger, surprise, sadness and happiness. The compound facial expression produced from the combination of some of the basic emotions. However, there has been no survey article on Compound Facial Expression of Emotions. In this article, we present survey on recognition, research methodologies and applications of Compound Facial Expression of Emotions. Diverse types of datasets/databases for the recognition of compound facial expressions of emotion with their pros and cons have been discussed on detail. Furthermore, different research methods along with advantages, disadvantages and possible future improvements are also deliberated. In the last, opportunities and challenges are enlisted.