1. S. Birchfield, Elliptical head tracking using intensity gradients and color histograms, in: Proceedings of IEEE Conference on Computer Vision and Pattern Recognition, 1998, pp. 232–237.
2. D. Comaniciu, V. Ramesh, P. Meer, Real-time tracking of non-rigid objects using mean shift, in: Proceedings of IEEE Conference on Computer Vision and Pattern Recognition, 2000, pp. 2142–2147.
3. P. Viola, M. Jones, Rapid object detection using a boosted cascade of simple features, in: Proceedings of IEEE Conference on Computer Vision and Pattern Recognition, 2001, pp. 511–518.
4. F. Porikli, Integral histogram: a fast way to extract histograms in Cartesian spaces, in: Proceedings of IEEE Conference on Computer Vision and Pattern Recognition, 2005, pp. 829–836.
5. A. Adam, E. Rivlin, I. Shimshoni, Robust fragments-based tracking using the integral histogram, in: Proceedings of IEEE Conference on Computer Vision and Pattern Recognition, 2006, pp. 2142–2147.