Figure 3.

Inherent curvature constancy. (a) Contrast energy of the contour candidates computed by low-level cues, using the gray image to represent the contrast energy of each candidate; (b) fitted straight line of each candidate with the contrast energy weight; (c) inherent curvature constancy evaluation of each candidate; clutter textures tend to be jagged and have small evaluation values; (d) modulated weight after inherent curvature constancy evaluation; note that clutter textures marked by red circles have been suppressed obviously compared to (a).