Automatic Screening and Grading of Age-Related Macular Degeneration from Texture Analysis of Fundus Images

Table 5

Confusion matrix in percentage for grading ( versus versus versus ).

%	SVM (Gini)				RF (Gini)				Grader B
Nb img	279				279				176
Grader A	1	2	3	4	1	2	3	4	1	2	3	4
1	20.1	6.8	1.1	0.4	19.7	6.5	1.4	0.7	31.2	9.5	0.6	0.0
2	6.5	15.8	4.7	1.4	7.2	16.5	2.9	1.8	4.5	19.3	6.2	0.6
3	1.4	4.7	13.3	3.9	2.2	5.7	13.3	2.1	0.0	3.4	7.4	2.8
4	0.7	0.7	5.0	13.6	0.7	2.2	5.0	12.2	0.0	1.1	1.1	13.1
Accuracy	62.7				61.6				71.5
Weighted (95% CI)	63.7 (57.3–70.2)				59.4 (52.3–66.5)				73.6 (66.1–80.2)
	Substantial				Moderate				Substantial