1. Viola, P., Jones, M.: Rapid object detection using a boosted cascade of simple features. In: Proc. CVPR, vol. I, pp. 511–518 (2001)
2. Dalal, N., Triggs, B.: Histograms of oriented gradients for human detection. In: Proc. CVPR, vol. 1, pp. 886–893 (2005)
3. Felzenszwalb, P., McAllester, D., Ramanan, D.: A discriminatively trained, multiscale, deformable part model. In: Proc. CVPR (2008)
4. Hoiem, D., Efros, A.A., Hebert, M.: Putting objects in perspective. In: Proc. CVPR., vol. 2, pp. 2137–2144 (2006)
5. Li, Y., Wu, B., Nevatia, R.: Human detection by searching in 3d space using camera and scene knowledge. In: Proc. ICPR (2008)