A Fast and Robust Ellipse-Detection Method Based on Sorted Merging

Figure 4

Relationship and merging degree between line segments. (a) Distance between line segments 𝑖 and 𝑗 is shorter, corresponding to higher merging degree. (b) Intersection angle between 𝑖 and 𝑗 is larger, corresponding to higher merging degree. (c) Lengths of line segments 𝑖 and 𝑗 are more similar, corresponding to higher merging degree.

(a)

(b)

(c)