Probabilistic Visual Learning for Object Representation
IEEE Transactions on Pattern Analysis and Machine Intelligence
Robot Vision
LAFTER: Lips and Face Real-Time Tracker
CVPR '97 Proceedings of the 1997 Conference on Computer Vision and Pattern Recognition (CVPR '97)
Evaluation of Tracking Methods for Human-Computer Interaction
WACV '02 Proceedings of the Sixth IEEE Workshop on Applications of Computer Vision
On Importance of Nose for Face Tracking
FGR '02 Proceedings of the Fifth IEEE International Conference on Automatic Face and Gesture Recognition
Face as Mouse Through Visual Face Tracking
CRV '05 Proceedings of the 2nd Canadian conference on Computer and Robot Vision
Face detection and tracking in a video by propagating detection probabilities
IEEE Transactions on Pattern Analysis and Machine Intelligence
User experience to improve the usability of a vision-based interface
Interacting with Computers
Exploiting eye-hand coordination to detect grasping movements
Image and Vision Computing
A real-time system for motion retrieval and interpretation
Pattern Recognition Letters
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This paper proposes a new human-machine interface particularly conceived for people with severe disabilities (specifically tetraplegic people), that allows them to interact with the computer for their everyday life by means of mouse pointer. In this system, called FaceMouse, instead of classical "pointer paradigm" that requires the user to look at the point where to move, we propose to use a paradigm called "derivative paradigm", where the user does not indicate the precise position, but the direction along which the mouse pointer must be moved. The proposed system is composed of a common, low-cost webcam, and by a set of computer vision techniques developed to identify the parts of the user's face (the only body part that a tetraplegic person can move) and exploit them for moving the pointer. Specifically, the implemented algorithm is based on template matching to track the nose of the user and on cross-correlation to calculate the best match. Finally, several real applications of the system are described and experimental results carried out by disabled people are reported.