Fig. 3From: Fast ℓ 1-minimization algorithm for robust background subtractionTwo-stage foreground detection. a Frames extracted from the Office [38], Water surface [30], and Skating [38] datasets. b Ground truth. c First-stage detection results by Δ 1. d First-stage detection results by Δ 2. e First-stage detection results by Δ. f Second-stage detection results by proposed BGS methodBack to article page