A New Robust Adaptive Fusion Method for Double-Modality Medical Image PET/CT

Table 4

SD results of six fusion methods.

No.	Minimum	Maximum	Weighted average	W-CS	CT-CS	Proposed algorithm
1	40.8197	36.9042	21.6015	21.5099	25.4149	43.9313
2	35.4407	40.1216	28.3254	28.2984	33.3080	42.6002
3	47.9880	38.7795	24.2483	24.2095	31.2767	49.5474
4	44.8688	34.0856	23.1505	23.1364	29.3985	46.1418
5	39.2653	42.1417	22.5138	22.3139	28.7261	45.9070
6	32.4256	43.7024	25.5027	25.3936	31.6841	37.2577
7	44.0279	39.5197	28.1370	27.8942	30.1352	51.9443
8	38.9748	37.6799	28.2563	28.0749	33.8124	46.1748
9	39.2371	47.6241	33.3346	33.223	41.9339	51.0566
10	49.4623	46.8517	25.7300	25.5751	28.5237	53.7019
11	41.9787	46.8397	24.5689	24.4434	28.2317	47.4076
12	43.3735	43.1237	24.6357	24.5633	28.3111	49.9585
13	42.1685	48.7261	27.2208	27.0723	31.8086	47.8887
14	44.6154	38.9140	23.7810	23.5821	26.9285	49.3080
15	53.2571	46.9942	31.1363	30.7504	34.2505	58.8691
16	46.4683	40.8302	23.1941	23.0332	29.8259	38.6864
17	43.4063	42.2500	21.5156	21.5181	26.6296	34.9590
18	46.4432	41.1815	23.2101	23.1058	29.3805	38.6287
19	36.1625	35.5986	21.4938	21.3850	29.0136	38.3435
20	39.6568	36.0124	20.4559	20.3050	25.1195	42.8999