Lung Nodule Image Classification Based on Local Difference Pattern and Combined Classifier

Table 1

The values of parameters used in the proposed method.

Notation	Description	Option range	Determined value
	Radius of 1st concentric circle	20–45 pixels (step with 5 pixels)	35 pixels
	Radius of 2nd concentric circle	70–95 pixels (step with 5 pixels)	90 pixels
	Radius of 3rd concentric circle	100–125 pixels (step with 5 pixels)	105 pixels
	Weight of combined classifier	0.3–0.8 (step with 0.1)	0.6
	Number of multiclusters	3–7 (step with 1)	5