Implementation of a robust absolute virtual head mouse combining face detection, template matching and optical flow algorithms
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- Pallejà, T., Guillamet, A., Tresanchez, M. et al. Telecommun Syst (2013) 52: 1479. doi:10.1007/s11235-011-9625-y
This work proposes the implementation of a robust absolute virtual head mouse based on the interpretation of head movements and face gestures captured with a frontal camera. The procedure combines face detection, template matching and optical flow algorithms to emulate all mouse events. This virtual device is designed specifically as an alternative non-contact pointer for people with mobility impairments in the upper extremities. The implementation of the virtual mouse was compared with a standard mouse, a touchpad and a joystick. Validation results show motion performances comparable to those of a standard mouse and better than those of a joystick in addition to good performances when detecting face gestures to generate click events: 96% success in the case of opening the mouth and 68% in the case of voluntary eye blinks.