Feature-Based Retinal Image Registration Using D-Saddle Feature

Table 3

Correlation between registration accuracy and percentage of overlapping area in FIRE dataset.

		Registration accuracy
		GDB-ICP	Harris-PIIFD	H-M	Saddle	D-Saddle
Overlapping area	Spearman’s rho (rs)	−0.588	−0.763	−0.761	−0.819	−0.795
	value ()	<0.001	<0.001	<0.001	<0.001	<0.001

Correlation is significant at the 0.05 level. Correlation is significant at the 0.01 level.