At the core of all facial expression analysis solutions is an expression database.
A (facial) expression database is a collection of images showing the specific facial expressions of a range of emotions. These images must be well annotated or emotion-tagged if they are to be useful to expression recognition systems and their related algorithms.
A major hindrance to new developments in the area of automatic human behavior analysis is the lack of suitable databases with displays of behavior and affect. There have been directed advances in this area, as in the MMI Facial Expression Database project, which aims to deliver large volumes of visual data of facial expressions to the facial expression analysis community.
The MMI Facial Expression Database was initially created in 2002 as a resource for building and evaluating facial expression recognition...
