A head movement propensity model for animating gaze shifts and blinks of virtual characters

Peters, Christopher and Qureshi, Adam (2010) A head movement propensity model for animating gaze shifts and blinks of virtual characters. Computers and Graphics, 34 (6). pp. 677-687. DOI https://doi.org/10.1016/j.cag.2010.09.007

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An automatic model is presented for animating gaze shifts of virtual characters towards target locations in a virtual environment. Two connected components are described: an eye-head controller and a blinking controller. The gaze control model is based on results from neuroscience, and dictates the contributions of the eyes and head to a gaze shift according to an individual's head movement propensity; that is, their tendency to recruit their head when making gaze motions under different conditions. The blink controller simulates gaze-evoked blinking, a specific category of behaviours that accompany gaze shifts. The probability of occurrence of such blinks, and their amplitude, is related to the gaze shift. The model forms the basis for a number of experiments investigating the impact of blinking, eye-head ratio and direction of head movements on user perception. In addition to other application domains, the findings are of significance to serious games environments, where the perceived quality of a character's gaze may affect engagement, immersion and learning outcomes.

Item Type: Article
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Date Deposited: 02 Mar 2016 15:33
URI: http://repository.edgehill.ac.uk/id/eprint/7178

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