Combined First- and Second-Order Variational Model for Image Compressive Sensing

Table 2

Average CPU times of different methods (s).

Sampling ratio (%)	20		25		0.33		0.5
Noise level (dB)	30	40	30	40	30	40	30	40
TVAL3	2.21	2.15	2.12	1.90	1.82	1.81	1.81	1.76
RecPF	0.80	0.68	0.69	0.67	0.69	0.67	0.67	0.58
Hybrid TVL1	1.76	1.72	1.68	1.67	1.56	1.56	1.51	1.50
Second-order TV	81.25	78.36	77.18	75.63	75.02	75.01	74.45	74.56
Our method	29.50	26.79	26.37	24.13	24.01	23.76	23.24	23.12