A Fast and Robust Ellipse-Detection Method Based on Sorted Merging
Figure 5
Illustrations of line segment merging conditions, where linked line segments denote elliptical arcs. (a) Rotating direction condition; and are of the same rotating direction, satisfying the condition, while and do not. (b) The length and angle condition; and generate a shape angle, not satisfying the condition. (c) The fitting condition; the fitting score of is too low, not satisfying the condition. (d) The rotating direction condition for arcs; and are of the same rotating direction, but and are not, preventing the two arcs from merging.
