Sparse Signal Reconstruction Based on Multiparameter Approximation Function with Smoothed 0 Norm

Table 1

Reconstruction quality comparison with different images and different approximation smoothed ℓ₀ algorithms.

Image	Algorithm	PSNR (dB)	RE	SNR (dB)	MD
Lena	SL0	29.6238	0.0947	34.3124	0.9831
	ASL0	32.2244	0.0742	36.2702	0.9893
	RASL0	36.9566	0.0578	39.9432	0.9926
Camera	SL0	26.4476	0.0921	30.6337	0.9846
	ASL0	29.0284	0.0747	32.2134	0.9873
	RASL0	33.3116	0.0634	36.2727	0.9912
Boat	SL0	28.1573	0.0852	31.3023	0.9813
	ASL0	29.5001	0.0786	33.7382	0.9865
	RASL0	30.5814	0.0614	34.3743	0.9908