Composite Clustering Sampling Strategy for Multiscale Spectral-Spatial Classification of Hyperspectral Images

Table 7

Classification accuracy and test set independence rate with different sampling strategies of the Salinas dataset.

Sampling strategy	3D-CNN				1D-3D-2D-CNN				Test set-independent sample rate (%)
	OA (%)	AA (%)	Kappa	Time (min.)	OA (%)	AA (%)	Kappa	Time (min.)
Area	78.34	79.25	0.7579	42.17	82.68	82.49	0.8066	7.39	96.96
Random	90.27	90.46	0.8911	41.21	94.63	91.33	0.9401	7.61	0.90
	77.70	82.77	0.7515	41.18	79.41	82.81	0.7710	7.68	93.99
	83.26	89.99	0.8135	41.25	87.17	91.00	0.8566	7.86	93.60
	78.84	83.04	0.7649	41.50	80.08	83.98	0.7788	8.03	94.18
	74.19	75.63	0.7123	41.44	77.18	81.63	0.7459	7.49	93.79
	83.79	85.33	0.8193	41.41	85.41	85.69	0.8373	7.75	91.80
	83.61	85.64	0.8167	41.84	84.99	85.99	0.8324	7.40	91.92
	86.44	86.27	0.8489	41.85	86.73	87.67	0.8522	8.03	91.31
	85.97	86.75	0.8437	41.19	87.91	87.56	0.8653	7.54	91.68
	87.32	91.21	0.8588	41.23	87.63	92.28	0.8624	8.07	90.60
	87.69	88.46	0.8629	41.48	89.10	91.12	0.8787	7.91	90.38
	88.89	93.07	0.8759	41.31	90.09	92.24	0.8894	7.84	89.98
	87.82	93.97	0.8644	41.54	88.08	94.29	0.8675	7.55	90.48
	86.07	91.76	0.8450	41.78	87.79	94.83	0.8643	7.68	90.42
	85.05	86.08	0.8331	41.46	86.05	87.43	0.8450	7.70	90.20
	85.86	93.77	0.8431	41.17	87.92	94.37	0.8660	7.97	89.67