Fig. 8From: Pedestrian segmentation based on a spatio-temporally consistent graph-cut with optimal transportExample of color-based pairwise energy. a Input image. b Color-based pairwise energy. If the colors between pedestrians or between a pedestrian and the background are similar, the color-based pairwise energy fails to preserve the object’s boundary; e.g., the pedestrian’s boundary inside the white bounding box in bBack to article page