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PART|I Signal Processing, Modelling and Related Mathematical Tools
view applications, such as desktop computer applications or mobile
telephone interfaces, and in distant view setups, such as smart-rooms
scenarios or augmented reality games. In the first case, the user can be
captured in a close view and some assumptions can be made regard-
ing the location and pose of the user. For instance, in face-oriented
applications, a frontal view of the face is generally assumed, whereas
for gestural interfaces, the hand is supposed to perform a gesture from
a specific dictionary directly in front of the camera. We will review
in Sections 5.2 and 5.3 of this ...