1. The Diabetic Retinopathy Study Research Group (1981) A modification of the Airlie House Classification of diabetic retinopathy: Diabetic Retinopathy Study: report no. 7. Invest Ophthalmol Vis Sci 21:210?226
2. Jagoe JR, Blauth CI, Smith PL, Arnold JV, Taylor RM, Wooton R (1990) Quantification of retinal damage during cardiopulmonary bypass: comparison of computer and human assessment. Procs IEEE 137:170?175
3. Katz N, Goldbaum M, Nelson M, Chaudhuri S (1988) An image processing system for automatic retinal diagnosis. Procs SPIE 902:131?137
4. Phillips RP, Ross PGB, Tyszka M, Sharp PF, Forrester JV (1991) Detection and quantification of hypofluorescent leakage by computer analysis of fundus fluorescein angiograms. Graefe's Arch Clin Exp Ophthalmol 229:329?335
5. Rosenfeld A, Kak AC (1982) Digital picture processing. Academic Press, Orlando, pp 61?73; 254?263