His research interests are focused on applications involving face image interpretation, face image coding, restoration and synthesis, age progression and non-invasive multi-modal human computer interaction, biometrics and other related applications of computer vision and virtual reality.
Andreas has published more than 150 papers in scientific journals, edited books and conference proceedings. Andreas was the principal investigator or partner in more than 15 externally funded research projects that received funding from the national Research Promotion Foundation or from the European Union.