A Fast and Robust Ellipse-Detection Method Based on Sorted Merging
Figure 1
Major difficulties of ellipse detection. (a) Ellipse at the cup mouth is blocked partially. (b) Noise interrupts the elliptical curve or generates fake branches. (c) Outlier causes incorrect detection, where the black ellipses are true ones and the green dashed ellipse is the incorrect detection result. (d) Low resolution makes the ellipse curves imprecise.
