Micro-Expression Extraction- An Alternative for Traditional Lie Detection System

Abstract

Micro-expressions are the facial expressions that last less than a second which helps to determine the true feelings or emotions of the sender in the communication. Lie-detection has been an evergreen and evolving subject. Till date, Polygraph techniques have been the most popular and successful technique. The main drawback of the polygraph is that the results cannot be attained without any physical contact. Sometimes, this physical contact could add extra consciousness in the subject. Observing at the facial micro-expressions in a person without contacting physically and implementing these techniques using artificial intelligence is one such method. Background subtraction algorithm extracts the features of an image. On the whole, this proposed system helps in detecting the micro-expression emotions for the purpose of lie detection.

Keywords — Lie Detection; Facial Micro-Expressions; Image Processing; Polygraph Techniques; Artificial Intelligence; Background Subtraction Algorithm.