SYSTEM AND METHOD FOR SCREENING PATIENTS FOR DIABETIC RETINOPATHY

摘要

The present invention (Fig.1) comprises a robust technique to automatically grade retinal images through detection of lesions that occur early in the course of diabetic retinopathy: dot hemorrhages or microaneurysms, blot and striate hemorrhages, lipid exudates and nerve-fiber layer infarcts. In addition, the present invention includes methods to extract the optic nerve in the appropriately identified fields, and to track and identify the vessels (measuring vessel diameters, tortuosity and branching angles).