Augmented reality (AR) has a great potential in creating rich user interfaces where users can
view and interact with virtual objects. AR can have both passive objects and active objects …

In this paper we propose an algorithm for finger detection and tracking in video sequences
captured with a common webcam. The proposed method uses a multi cue approach to …

Biometric traces that are left on the screen of a security device or mobile phone may cause a
threat to the privacy of people when such personal data is likely to be stolen. The touchless …

This thesis focuses on a subject of major interest for the computer vision research
community: the human computer interaction. The main problem to solve is to allow human …