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

Table 2

Comparison of straight line detection results in noise-free condition (intercept).

Actual value		Traditional Hough		Improved detection method
Line	Slope	Efficient	Relative error(%)	Efficient	Relative error(%)
A	0.33	0.37	10.69%	0.33	0.57%
B	0.36	0.39	8.74%	0.36	0.10%
C	−0.03	0.00	113.82%	−0.03	0.18%
D	−0.41	−0.37	9.02%	−0.41	0.03%