Nonreference Medical Image Edge Map Measure

Table 1

Basic steps in Yitzhaky’s NR edge measure.

Yitzhaky’s edge measure
(1) Generate 𝑁 edge detection results 𝐷𝑖, 𝑖=1,…,𝑁 using 𝑁 combinations of parameters
(2) Generate 𝑁 potential ground truth PGT𝑖, 𝑖=1,…,𝑁
(3) Calculate the average true positive (TP), true negative (TN), false positive (FP), and false negative (FN) rate for each potential ground truth
(4) Construct the correspondence threshold ROC curve (CT-ROC)
(5) Extract the estimated ground truth using either a diagnosis line or the chi-square estimation
(6) Select the best edge map which gives the best match to the estimated ground truth