Table 1.

Classification and comparison of involved algorithms in this paper.

	Category	Initialization	Tuned parameters
AUGC	GrabCut	Canny operator with adaptive thresholding and the structure element radii of morphological operators is initialized to 4 and 8	—
ACCD	Active contour	20 control points per slice	α and β
Watershed	Level sets	0.1	wl
CCRG	Region growing	10 seeds for each volume	l