The top row reports the test images while the bottom row shows the images generated using a simple 3D model and the rotation estimated using the approximately linear dependence of the gradient projection asymmetry on the rotation around the vertical image axis Fig. 12. Sensitivity to illumination of some common preprocessing operators. The horizontal axis represents the values of (see text for ...

A non-intrusive real-time program detects the face, then eyes and nose of a moving workstation user at a rate of between 10 and 30 Hertz. Based on the head pose, it determines where on the display the subject is looking. The long term goal is to provide a system for controlling a computer using head movements and gaze direction. The current program creates a base facility for other capabilities...

The face perception system partly owes its efficiency to adaptive mechanisms that constantly recalibrate face coding to our current diet of faces. Moreover, faces that are better attended produce more adaptation. Here, we investigated whether the social cues conveyed by a face can influence the amount of adaptation that face induces. We compared the magnitude of face identity aftereffects induc...

In this letter we propose a facial feature extraction technique which utilizes polynomial coefficients derived from 2D Discrete Cosine Transform (DCT) coefficients obtained from horizontally and vertically neighbouring blocks. Face authentication results on the VidTIMIT database suggest that the proposed feature set is superior (in terms of robustness to illumination changes and discrimination ...

Detection of others' gaze direction is an essential tool in everyday communication. As the gaze direction is analyzed rapidly and automatically, we hardly notice how we are performing this task. Wollaston's illusion [Wollaston, W. H. (1824). On the apparent direction of eye in a portrait. Philosophical Transactions of the Royal Society of London Series B, 114, 247-256] provides us the chance to...