Three dimensional simulation for blood vessel of ocular fundus

In the present paper, the mathematical models of visualized fundus which can be applied to medical study are set up on the basis of the analysis of the anatomic features of the ocular fundus for eyeball. The central diffuse back-projection method is used to reconstruct the curved surface of ocular fundus, and the contour image of blood vessel as well as the skeleton image is used to reconstruct the three dimensional of blood vessel. Besides, as for the fundus system of blood vessel, the matching algorithm for blood vessel, the identification algorithm for branch, the algorithm for recognition for skeleton of blood vessel are put forward. The three dimensional simulation using these algorithms improve their precision and enhance the definition of the blood vessel. As a result, this three dimensional simulation provides the clinical application with the parameter recollection as well as the representation environment, and they are helpful to diagnosis, representation, laser treatment, operation positioning.