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

Table 3

Comparison on FERET database.

Elapsed time per test image(s)
Test number	PALM	DALM	FISTA	TNIPM	OMP	Improved OMP
1	13.6277	0.6245	3.7790	8.8048	10.1515	0.3854
2	13.6254	0.6191	3.8656	9.4325	10.4445	0.3325
3	18.9904	0.6191	3.8538	8.6242	10.2513	0.2858
4	15.2641	0.6316	4.0842	9.0337	10.2262	0.3229
5	15.2024	0.6364	4.0117	9.0880	10.4940	0.4109
6	13.1985	0.6125	3.8448	8.7168	10.2518	0.4428
7	14.5053	0.6365	3.7359	8.8999	10.8678	0.2599
Average(s)	14.9163	0.6257	3.8821	8.9428	10.3839	0.3486
Recognition rate
Test number	PALM	DALM	FISTA	TNIPM	OMP	Improved OMP
1	40%	90.67%	92.67%	90.67%	51.33%	93.33%
2	48.67%	88%	92.67%	88%	50%	92%
3	45.33%	65.33%	68.67%	65.33%	77.33%	92.67%
4	38.67%	84.67%	88%	84.67%	72.67%	90.67%
5	44.67%	86.67%	92%	86.67%	74.67%	93.33%
6	54.67%	80%	86%	80%	57.33%	89.33%
7	42.67%	90%	93.33%	90%	64%	94.67%
Average	44.95%	83.62%	87.62%	83.62%	63.90%	92.29%