Figure 6From: Video analysis-based vehicle detection and tracking using an MCMC sampling frameworkCombined HOG and symmetry based descriptor. (a) The structure of concentric rectangle HOG (CR-HOG) with its corresponding parameters is illustrated. (b) The refined regions obtained after vertical symmetry analysis is shown for some examples: green and red lines indicate respectively the symmetry axis and the width of the region yielding the maximum symmetry values.Back to article page