Rapid Retrieval of Lung Nodule CT Images Based on Hashing and Pruning Methods

Table 3

Quantitative results of some features of lung nodule images.

Image	Gray		Morphology							Texture (0°)
			7 invariant moments		Medical signs		Geometrical features
	Mean	Entropy			Calcification degree	Cavitary ratio	Area	Roundness	Rectangle	ASM	CON	IDM
	0.5327	4.9199	0.2789	0.0025	0.1720	0	343	0.3961	0.5489	0.0521	1.3518	0.7151
	0.5403	4.8428	0.2731	0.0016	0.1954	0.2483	302	0.3503	0.5243	0.0451	1.9339	0.6360
	0.4496	4.7236	0.3173	0.0032	0.2268	0	529	0.6274	0.3701	0.0854	2.1015	0.6853
	0.3933	4.4967	0.3757	0.0037	0	0.1985	297	0.5632	0.4127	0.1415	1.5383	0.7105
	0.5293	5.1302	0.2707	0.0017	0.2571	0.1684	412	0.5279	0.2953	0.0267	1.7759	0.6369