Adhesion Pulmonary Nodules Detection Based on Dot-Filter and Extracting Centerline Algorithm

Table 1

The difference between four algorithms for extracting center line in deviation and time consuming.

Algorithm for center-line extracted			/s
Margin of linear least square fitting legitimate	0.142	45.437	0.042
Symmetric moment fitting center method	1.50	550.832	0.031
Block cancroids least squares fitting	0.671	332.117	0.033
Algorithm used in this paper	0.157	23.858	0.059