This thesis covers facial expression recognition from camera images to improve human-machine communication. A three-dimensional face model, which is fitted to the image, is used for this task. Automated facial expression recognition systems are confronted with two characteristic challenges: In contrast to artificial objects, human faces differ a lot with respect to appearance and shape. Furthermore, because obtaining natural training data is difficult, most databases provide only acted facial expressions. These challenges are tackled separately: A novel preprocessing method highlights specific facial components like eyebrows or lips. Moreover, several databases are combined instead of relying on only one database.
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This thesis covers facial expression recognition from camera images to improve human-machine communication. A three-dimensional face model, which is fitted to the image, is used for this task. Automated facial expression recognition systems are confronted with two characteristic challenges: In contrast to artificial objects, human faces differ a lot with respect to appearance and shape. Furthermore, because obtaining natural training data is difficult, most databases provide only acted facial ex...
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