1. Zhang, H., Hu, S., Yang, G.: Video object tracking based on appearance models learning. J. Comput. Res. Dev. 52, 177–190 (2015)
2. Peng, B.: Research on Occlusion in Image Sequence Tracking. Xidian University, Xidian (2014)
3. Zheng, K., Huang, W., Zhang, Z.: Occlusion handling in moving object tracking system. Comput. Eng. Des. 11, 2816–2818 (2009)
4. Xue, C., Zhu, M., Liu, C.-X.: Review of tracking algorithms under occlusions. Chin. Opt. 2, 388–393 (2008)
5. Ouyang, N., You, J.-H., Mo, J.-W., Zhang, T.: Tracking multiple objects in occlusions. Appl. Res. Comput. 27, 1984–1986 (2010)