The Edge Detectors Suitable for Retinal OCT Image Segmentation

Figure 2

Procedures of performance evaluation of edge detectors. The ground truth of OCT retinal layer boundaries is labeled by an expert observer. Raw OCT images are firstly denoised and then applied with three automatic edge detection algorithms (i.e., Canny, two-pass, and EdgeFlow) to obtain the algorithm-detected boundaries, which are compared with the ground truth.