A Preliminary Study of Automatic Delineation of Eyes on CT Images Using Ant Colony Optimization  

作　　者：李永杰 谢维夫 尧德中 

机构地区：[1]School of Life Science and Technology,University of Electronic Science and Technology of China

出　　处：《Journal of Electronic Science and Technology of China》2007年第1期66-69,共4页中国电子科技（英文版）

基　　金：Supported by the 973 Project of China (No. 2003CB716106);the National Natural Science Foundation of China (No. 30500140 and 90208003)

摘　　要：Eyes are important organs-at-risk （OARs） that should be protected during the radiation treatment of those head tumors. Correct delineation of the eyes on CT images is one of important issues for treatment planning to protect the eyes as much as possible. In this paper, we propose a new method, named ant colony optimization （ACO）, to delineate the eyes automatically. In the proposed algorithm, each ant tries to find a closed path, and some pheromone is deposited on the visited path when the ant fmds a path. After all ants fmish a circle, the best ant will lay some pheromone to enforce the best path. The proposed algorithm is verified on several CT images, and the preliminary results demonstrate the feasibility of ACO for the delineation problem.Eyes are important organs-at-risk （OARs） that should be protected during the radiation treatment of those head tumors. Correct delineation of the eyes on CT images is one of important issues for treatment planning to protect the eyes as much as possible. In this paper, we propose a new method, named ant colony optimization （ACO）, to delineate the eyes automatically. In the proposed algorithm, each ant tries to find a closed path, and some pheromone is deposited on the visited path when the ant fmds a path. After all ants fmish a circle, the best ant will lay some pheromone to enforce the best path. The proposed algorithm is verified on several CT images, and the preliminary results demonstrate the feasibility of ACO for the delineation problem.

关 键 词：automatic delineation CT images ant colony optimization 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]