A Model of High-Dimensional Feature Reduction Based on Variable Precision Rough Set and Genetic Algorithm in Medical Image

Table 1

ROI feature values of lung tumor PET/CT image.

Types of disease	Shape feature	Gray feature	Tamura texture	Texture features of GLCM				Texture feature of wavelet
				0 degree	45 degrees	90 degrees	135 degrees	Norm	Standard deviation	Energy
Lung malignant tumor	6.0000	122.2810	14.7000	0.0808	0.0779	0.0790	0.0611	649.2580	37.1752	1.0000
	0.0012	1491.1500	30.9650	2.8937	2.9067	2.8989	3.1284	26.9473	3.8486	0.0017
	0.0000	38.6154	0.2326	0.2576	0.2820	0.2653	0.4490	9.3520	1.3355	0.0002
	0.0000	−0.5056		0.1668	0.1676	0.1659	0.1649	16.8200	2.4025	0.0007
	0.0000	2.4166		0.0792	0.0759	0.0772	0.0566	27.1143	3.8693	0.0017
	0.0000	140453		0.2576	0.2820	0.2653	0.4490	20.3163	2.9020	0.0010
	0.0000	7.0524		16.4110	16.4469	16.3584	16.4431	13.1755	1.8818	0.0004
	0.0000			2.7089	2.7072	2.7100	2.8066	18.3441	2.6199	0.0008
				0.5755	0.6007	0.5810	0.7345
				210.9390	211.7900	209.5780	208.8250
				0.3064	0.3351	0.3135	0.3950
				−0.6779	−0.6708	−0.6775	−0.5696
				0.0000	0.0000	0.0000	0.0000
				0.7625	0.7802	0.7658	0.8001
Lung benign tumor	4.0000	50.3912	10.1616	0.8087	0.7915	0.8077	0.7864	379.9170	2.6741	1.0000
	0.0033	6.0006	1.8835	0.4324	0.4732	0.4370	0.4840	5.7551	0.8211	0.0002
	0.0000	2.4496	2.6329	0.0433	0.0621	0.0469	0.0679	1.1745	0.1677	0.0000
	0.0000	0.5649		9.4899	7.8127	9.2429	9.2429	3.4684	0.4955	0.0001
	0.0000	2.8589		0.8082	0.7905	0.8072	0.7853	2.0823	0.2972	0.0000
	0.0000	3283		0.0433	0.0621	0.0469	0.0679	2.1821	0.3117	0.0000
	0.0000	3.2559		7.8367	7.8363	7.8396	7.8363	0.8937	0.1276	0.0000
	0.0000			0.4024	0.4301	0.4045	0.4370	2.2387	0.3197	0.0000
				0.1782	0.2326	0.1894	0.2481
				55.5257	55.0899	55.5291	54.9831
				0.0596	0.0873	0.0650	0.0958
				−0.4707	−0.3295	−0.4351	−0.2911
				0.0000	0.0000	0.0000	0.0000
				2.0429	2.1172	2.0651	2.1394