Double Regression-Based Sparse Unmixing for Hyperspectral Images

Table 1

SRE (dB), rRMSE, time (s), and parameters of each algorithm for DC1.

SNR	Criteria	SUnSAL	CLSUnSAL	SUnSAL-TV	CSUnL0	S^2WSU-W1
20 dB	SRE (dB)	4.5610	8.5435	9.4239	5.3514	7.8621	14.5899
	rRMSE	0.0053	0.0047	0.0045	0.0052	0.0049	0.0039
	Time (s)	3.95	4.14	88.07	28.25	30.32	5.33
	Parameters						,; ,
30 dB	SRE (dB)	8.9168	11.1263	14.4408	13.5834	15.5173	17.2511
	rRMSE	0.0046	0.0043	0.0040	0.0041	0.0037	0.0035
	Time (s)	3.04	5.58	87.64	26.71	29.17	5.81
	Parameters						,; ,
40 dB	SRE (dB)	12.6214	16.3085	21.1759	23.0446	24.7366	26.0369
	rRMSE	0.0042	0.0036	0.0031	0.0030	0.0028	0.0026
	Time (s)	3.28	5.62	85.92	33.31	31.45	6.19
	Parameters						,; ,