Research on Several Key Problems of Medical Image Segmentation and Virtual Surgery

Table 1

Comparison of straight line detection results without noise (slope).

Actual value		Traditional Hough		Improved detection method
Line	Slope	Efficient	Relative error(%)	Efficient	Relative error(%)
A	0.63	0.65	3.60%	0.63	0.04%
B	0.23	0.25	11.19%	0.23	0.87%
C	0.72	0.74	3.25%	0.72	0.10%
D	−0.14	−0.11	23.45%	−0.14	0.78%