Human Relative Position Detection Based on Mutual Occlusion. - Víctor Borjas; Michal Drozdzal; Petia Radeva; Jordi Vitrià (CIARP, 2012)

Gradient Histogram Background Modeling for People Detection in Stationary Camera Environments. - Víctor Borjas; Jordi Vitrià; Petia Radeva (MVA, 2013)