Figure 4From: Fractal-based analysis of optical coherence tomography data to quantify retinal tissue damageAn example of the detection of the blood vessel shadows by the shadowgram technique. A) the raw OCT image of the macula. B) The same OCT image showing segmentation results after removal of speckle noise. C-D) Zoomed-in views of the shadowed regions are shown with the detected boundaries of blood vessel shadows.Back to article page