Acquiface Interface as a Device for Acquisition of User's Facial Expressions in Game Expression Hunter

The need test data on facial expression recognition for Indonesian people are not easily obtained and not available in existing databases. Race and ethnic differences can affect the results of facial expression recognition. Testing on facial expressions using untrained data will give more objective results. The purpose of this study is to utilize the Acquiface interface feature in the game Expressions Hunter to get data in the form of images of facial expressions from Indonesian players. Finite State Machine is used to provide behavior to the enemy according to a user action to collect facial expressions by hunting and killing enemies. Acquiface interface is a prototype of one of the features in the game Expression Hunter which functions to record user expressions in accordance with the collection of expressions obtained by users after killing regular enemy monsters or enemy Bosses. RADIATE facial stimulus sets are used as stimuli to generate facial expressions according to the type of expression. The result of recording is a facial expression video file which is then extracted into a sequence of facial expressions. The final image of facial expression is selected from the most expressive sequence of facial expressions (having peak expression).