Audio and visual modality combination in speech processing applications. - Gerasimos Potamianos; Etienne Marcheret; Youssef Mroueh; Vaibhava Goel; Alexandros Koumbaroulis; Argyrios Vartholomaios; Spyridon Thermos (The Handbook of Multimodal-Multisensor Interfaces, Volume 1 (1), 2017)