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PART|II Multimodal Signal Processing and Modelling
actions by jointly recognising the user action in both communication
channels exploiting their mutual information. An example of such
a system could be the audio-visual speech recognition that is also
described later in the chapter, where speech is recognised both in the
audio channel and the visual channel using the information obtained
from the lip shape. Another approach could be the joint modality
recognition of sign language broadcasting, where the signs are visu-
ally recognised along with the displayed subtitles, that could increase
recognition rate and could also solve synchronisation problems. ...