Optical Coherence Tomography for Retinal Imaging ECE 172A Julio Flores

OCT Imaging System

OCT B-scans 6 axial scans of the eye. B-scans at 30 degrees apart.

OCT B-scan Anterior edge of Retina Posterior edge of the retina Unwanted artifact

OCT System Error The computer could not Detect the anterior edge of the retina.

Computer Error! This is the actual scan of the Retina with the abnormality. This is what the computer thought The retina should look like. Bad computer!

Approach Morphological operations: Opening/Closing methods. Applying a Gradient mask. Canny edge detection.

Canny Edge Detection

Motivation To have more accurate representations of the true edges and shape of the retina. This will help with the proper diagnosis of different eye diseases. Ultimately, to have better vision.

Results

Future Work Continue work on this project for the next two quarters. Developing a universal algorithm to detect edges with greater accuracy of any size image. Potential work with 3-D images of artifacts.