Partially Occluded Facial Image Retrieval Based on a Similarity Measurement

Table 2

Performance comparison of the proposed method for partially occluded facial image retrieval in the case of occlusion by sunglasses.

Algorithm	Image format used in SIFT matching	Number of subregions	Retrieval rate
Gabor-LBP [26]	Without SQI	6 × 6	75.56%
		10 × 10	75.56%
	With SQI	6 × 6	75.56%
		10 × 10	75.56%
SIFT total weight [35]	Without SQI	6 × 6	68.89%
		10 × 10	45.93%
	With SQI	6 × 6	77.04%
		10 × 10	71.11%
SIFT probe weight [36]	Without SQI	6 × 6	59.26%
		10 × 10	45.93%
	With SQI	6 × 6	64.44%
		10 × 10	53.33%
Proposed method	Without SQI	6 × 6	77.78%
		10 × 10	92.60%
	With SQI	6 × 6	94.07%
		10 × 10	92.59%