Automatic lip identification applied under soft facial emotion conditions

Abstract

This work shows an identification approach based on lip characteristics. For this proposal, the subject has to be without movement, with frontal face, without moving the lips by a neutral expression, angry or indifferent, therefore, not changing significantly the shape of the lips. After a preprocessing stage, global information from lips are extracted, reaching up to 9979%, using 5 training samples for the public RaFD database.