Real-time 3D head tracking under rapidly changing pose, head movement and illumination

Authors:
Wooju Ryu;Daijin Kim
Affiliations:
Dept. of Computer Science & Engineering, Pohang University of Science and Technology, Pohang, Korea;Dept. of Computer Science & Engineering, Pohang University of Science and Technology, Pohang, Korea
Venue:
ICIAR'07 Proceedings of the 4th international conference on Image Analysis and Recognition
Year:
2007

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Abstract

This paper proposes a fast 3D head tracking method that is working robustly under a variety of difficult conditions such as the rapidly changing pose, head movement and illumination. First, we obtain the pose robustness by using the 3D cylindrical head model (CHM) and dynamic template. Second, we also obtain the robustness about the fast head movement by using the dynamic template. Third, we obtain the illumination robustness by modeling the illumination basis vectors and by adding them to the previous input image to adapt the current input image. Additionally, to make it more robust, we use a reregistration technique that takes the stored reference image as the template when the registration error becomes great. Experimental results show that the proposed head tracking method outperforms the other tracking method using the fixed and dynamic template in terms of the small pose error and the higher successful tracking rate and it tracks the head successfully even if the head moves fast under the rapidly changing poses and illuminations in a speed of 10-15 frames/sec.