A Fast Iterative Pursuit Algorithm in Robust Face Recognition Based on Sparse Representation

Table 2

Comparison on Yale database.

Elapsed time per test image(s)
Test number	PALM	DALM	FISTA	TNIPM	OMP	Improved OMP
1	1.9440	1.3520	5.9824	20.1194	12.433	0.7253
2	1.6345	1.3967	6.4434	17.1639	11.1681	0.7690
3	1.8704	6.3440	6.3742	17.4002	11.3312	0.7831
4	1.9500	2.0409	7.0701	18.1936	11.0440	0.7920
5	1.6420	1.3959	6.1629	16.8426	10.5832	0.7215
6	1.3926	1.3948	6.1054	15.7372	11.6463	0.7824
7	1.5375	1.3638	7.3222	15.9961	13.0719	0.6903
8	1.3519	1.4371	7.8755	15.6780	11.1364	0.8467
Average(s)	1.6654	2.0907	6.6670	17.1414	11.5518	0.6731
Recognition rate
Test number	PALM	DALM	FISTA	TNIPM	OMP	Improved OMP
1	52.96%	47.37%	92.11%	55.92%	78.95%	92.43%
2	53.29%	50.33%	95.39%	90.13%	81.58%	92.76%
3	51.97%	52.63%	92.76%	87.17%	83.22%	90.46%
4	53.29%	51.64%	92.43%	91.12%	85.53%	95.72%
5	47.37%	49.34%	94.41%	91.78%	79.93%	94.74 %
6	50%	51.64%	96.38%	93.75%	82.89%	96.71%
7	49.34%	47.37%	93.42%	92.76%	82.89%	92.43%
8	51.64%	50%	95.39%	94.74%	86.51%	95.72%
Average	51.23%	50.04%	94.04%	87.17%	82.69%	93.87%