Emotion recognition — Theory or practicality

Emotion is something that every person experiences throughout his or her lifetime. It is intrinsic to life itself. However, emotion is still one of life´s unknowns. The main issue is that emotion is entirely subjective. Each person experiences emotion in entirely different ways, which makes the art of recognising emotion a challenge. Due to the potential that accurate emotion recognition can yield, in regards to Human Computer Interaction, the challenge is one that many believe is worth solving. This state of the art review, explores how technological advancements and are paving the way in understanding the emotion a person is experiencing. The authors outline how their research aims to use technology as well as innovative techniques to achieve high classification accuracy. If achievable the technologies and techniques could achieve significant advancement within interaction as well as countless other application areas.