Page 216 - Computational Retinal Image Analysis

212 CHAPTER 11 Structure-preserving guided retinal image filtering

FIG. 5
Retinal images of optic disc: from the left to right are the original disc images, the images
processed by GIF, and the images processed by proposed filter.

FIG. 6
Simple U-Net architecture.

3.4.1 Deep learning-based optic cup segmentation
In the first application, we evaluate how the declouding affects optic cup segmentation.
Since deep learning [65] has shown to be promising in segmentation, we use deep
learning as the baseline approach and the U-Net architecture [66] is adopted in this
chapter. U-Net is a fully convolutional neural network suitable for biomedical image