Table 1. A contrast of the computation time among RSVM, LSM and Snake.

Pixel binning	Size (pixels)	RSVM (s)	LSM (s)	Snake (s)
1 × 1	4180 × 6000	2.42	745.65	2334.88
2 × 2	2090 × 3000	2.02	188.01	530.89
4 × 4	1045 × 1500	1.87	44.57	281.04
8 × 8	522 × 750	1.88	12.13	71.99

The 1st column is the pixel binning mode. The 2nd column is the size (pixels) of the image after pixel binning. The 3rd column is the computation time to calculate the image with the size in the 2nd column using RSVM. The 4th column is the computation time to calculate the image with the size in the 2nd column using LSM. The 5th column is the computation time to calculate the image with the size in the 2nd column using Snake. The units of time in the 3rd to 5th columns are second (s).