| S. Asteriadis, K. Karpouzis, S. Kollias |
| Visual Focus of Attention in Non-calibrated Environments using Gaze Estimation |
| International Journal of Computer Vision, Springer, 01/2014; DOI:10.1007/s11263-013-0691-3 |
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ABSTRACT
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| Estimating the focus of attention of a person highly depends on her/his gaze directionality. Here, we propose a new method for estimating visual focus of attention using head rotation, as well as fuzzy fusion of head rotation and eye gaze estimates, in a fully automatic manner, without the need for any special hardware or a priori knowledge regarding the user, the environment or the setup. Instead, we propose a system aimed at functioning under unpretending conditions, only with the usage of simple hardware, like a normal webcamera. Our system is aimed at functioningin a Human-Computer Interaction (HCI) environment, considering a person is facing a monitor with a camera adjusted on top. To this aim, we propose in this paper two novel techniques, based on local and appearance information, estimating head rotation, and we adaptively fuse them in a common framework. The system is able to recognize head rotational movement, under translational movements of the user towards any direction, without any knowledge or a-priori estimate of the user¢s distance from the camera or camera intrinsic parameters.
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| 13 January , 2014 |
| S. Asteriadis, K. Karpouzis, S. Kollias, "Visual Focus of Attention in Non-calibrated Environments using Gaze Estimation", International Journal of Computer Vision, Springer, 01/2014; DOI:10.1007/s11263-013-0691-3 |
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