1. Li, H., Achim, A., Bull, D.R.: GMM-based efficient foreground detection with adaptive region update[C]. 2009 16th IEEE International Conference on Image Processing (ICIP), pp. 3181–3184. IEEE (2009)
2. Nguyen, T.B., Nguyen, V.T., Chung, S.T.: A Real-time pedestrian detection based on AGMM and HOG for embedded surveillance[J]. J. Korea Multimedia Soc. 18(11), 1289–1301 (2015)
3. Rodriguez, F., Uribe, A.L. et al.: Obstacle detection over rails using hough transform[C]. Symposium of Image Signal Processing and Artificial Vision Medellin Antioquia, pp. 317–322 (2016)
4. Ke, X.: Railway intrusion monitoring based on intelligent video technology [D]. Central South University, Changsha (2010). (in Chinese)
5. Li, F., Zou, Y.F., Zhou, H.Q., et al.: A real-time system for pedestrian detection based on GMM and HOG [J]. Adv. Mater. Res. 403–408, 2723–2727 (2012)