Fig. 1
From: Associated risk factors in the early stage of diabetic retinopathy
Representative optical coherence tomography angiography (OCT-A) and postprocessed images for a control, diabetes without retinopathy (NDR) and diabetes with mild retinopathy (MDR) eyes illustrating the automated analysis algorithm. Original OCT-A images of the superficial retinal capillary layers of control (a), NDR (e) and MDR (i) eyes and binary images of the capillary plexus after removing background noise and larger vessels of control (b), NDR (f) and MDR (j) eyes. Original OCT-A images of the deep retinal capillary layers of control (c), NDR (g) and MDR (k) eyes and Binary images of the capillary plexus after removing background noise of control (d), NDR (h) and MDR (l) eyes. Control, control eyes; NDR, diabetic patients with no DR; MDR, diabetic patients with mild DR; SRCL, superficial retinal capillary layer; DRCL, deep retinal capillary layer; BI: binary images