Registration of the long-term autofluorescence retinal images taken from glaucomatic patients

Nevertheless, this application needs relevant image preprocessing using registration of these long term AF images. This paper describes a method for AF image registration using four main parts. The first part preprocess images of different scales to approximately they resolution and field of view. The second step is registration using phase correlation in Fourier domain for large shift and rotation estimation and compensation. The third step detects blood vessels and in the last step the standard registration framework is applied. The method was evaluated on 147 registration pairs.