Fig. 2From: Fast ℓ 1-minimization algorithm for robust background subtractionProposed BGS method. We first scale down the resolution of the original image sequences. The sub-sampled frames are subsequently projected over a pre-learned dictionary with the proposed ℓ 1-min algorithm. Then, we employ a comparison based on the distribution of the sparse coefficients. A second-stage of patch refinement is applied to the region determined in the first stage to obtain the final foreground detectionBack to article page