Partially Occluded Facial Image Retrieval Based on a Similarity Measurement

Table 3

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

Algorithm	Image format used in SIFT matching	Number of subregions	Retrieval rate
Gabor-LBP [26]	Without SQI	6 × 6	91.85%
		10 × 10	97.04%
	With SQI	6 × 6	91.85%
		10 × 10	97.94%
SIFT total weight [35]	Without SQI	6 × 6	94.07%
		10 × 10	94.07%
	With SQI	6 × 6	92.60%
		10 × 10	95.56%
SIFT probe weight [36]	Without SQI	6 × 6	94.07%
		10 × 10	94.07%
	With SQI	6 × 6	93.33%
		10 × 10	88.89%
Proposed method	Without SQI	6 × 6	87.41%
		10 × 10	91.11%
	With SQI	6 × 6	93.33%
		10 × 10	91.11%