A novel edge tracking approach for cornea in optical coherence tomography anterior chamber images

A new edge tracking method for cornea in optical coherence tomography anterior chamber images has been proposed in the paper. The new approach detects the edge of cornea outside the cornea first. Then, it fixes the detected edge, which follows the future knowledge of cornea, to make sure that only the real edge of cornea could be left. Finally, the method fits the fixed edge by fourth order least squares. The advantage of this proposed method is that it could fit the edge of cornea even for abnormal corneas.