More than three features

Y. Chen, J. Wang, H. Lu, “Multiple features based shared models for background subtraction”, IEEE International Conference on Image Processing, ICIP 2015, September 2015.

H. Gao, R. Wildes, “Background Image modelling for change detection”, Technical Report EECS-2016-01, York University, January 2016

S. Mohanty, S. Rup, M. Swamy, "An improved scheme for multifeature-based foreground detection using challenging conditions", Digital Signal Processing, 2021.