Fig. 1
From: Spatio-temporal silhouette sequence reconstruction for gait recognition against occlusion
Examples of occlusion in real-life applications (every fifth frame of a sequence). a Relative dynamic occlusion where the subject is occluded by a tree and continuously changes the occluded portion from left to right. b Relative dynamic occlusion where the subject is occluded by a parked car and continuously changes the occluded portion from bottom to top. c Relative static occlusion where the subject is occluded by wall in a fixed position