B. D. Lucas and T. Kanade, An iterative image registration technique with an application to stereo vision, IJCAI, vol.81, pp.674-679, 1981.

S. Martin, C. Tran, A. Tawari, J. Kwan, and M. Trivedi, Optical flow based head movement and gesture analysis in automotive environment, ITSC, pp.882-887, 2012.

E. Murphy-chutorian and M. M. Trivedi, Head pose estimation in computer vision : A survey, vol.31, pp.607-626, 2009.

C. Rother, V. Kolmogorov, and A. Blake, Grabcut : Interactive foreground extraction using iterated graph cuts, ACM transactions on graphics, vol.23, pp.309-314, 2004.

R. Zhao, W. Ouyang, and X. Wang, Learning mid-level filters for person re-identification, CVPR, pp.144-151, 2014.