Robust Ear Recognition via Nonnegative Sparse Representation of Gabor Orientation Information

Table 2

Recognition performance comparisons between conventional Gabor feature and the proposed Gabor orientation using SRC AND NSRC.

Occlusion ratio	0%	5%	10%	15%	20%	25%	30%	35%	40%	50%
Conventional Gabor + SRC	99.49	94.33	64.56	35.19	18.71	10.13	6.33	4.80	3.8	3.8
Conventional Gabor + NSRC	99.75	95.19	83.92	75.95	74.68	58.48	47.59	37.72	29.37	17.7
Gabor orientation + SRC	99.75	99.24	94.68	78.99	54.68	28.35	15.19	9.37	6.33	4.05
Gabor orientation + NSRC	99.75	99.49	98.99	98.48	96.96	93.67	88.35	84.56	73.92	52.41