三维锥束扫描CT成像图像重建新进展  

Recent Progress in Image Reconstruction and Processing of 3D Conebeam CT

作　　者：陈志强[1] 曾凯[1] 张丽[1] 邢宇翔[1] 

机构地区：[1]清华大学粒子信息获取与处理教研室,100084

出　　处：《CT理论与应用研究（中英文）》2004年第4期5-8,共4页Computerized Tomography Theory and Applications

摘　　要：介绍了作者在CT成像理论研究和工程应用实践中关于图像重建、图像处理和理解方面的成果,以及对未来的展望。主要的成果包括四个方面:一是研究三维CT重建常用算法的特点和固有误差,提出改进重建图像质量的新方法;二是从研究算法重建的优化准则出发,实现不同的重建方法;三是从应用任务出发对重建图像的性能进行理论和仿真研究;四是从应用实际问题出发,提出图像处理和理解的有效方案。This paper summarizes the recent contributions made by the authors in the field of CT imaging. The work includes both theoretical research and industrial applications of methods about image reconstruction, image processing and understanding. The contributions can be concluded into four aspects: i) algorithms for 3D cone-beam reconstruction are analyzed in performance and with error distribution, and a new algorithm is proposed to improve image quality; ii) reconstruction methods under different principle are studied and implemented, iii) system performance is evaluated theoretically and experimentally based on task, iv) effective methods for image processing and understanding are presented and verified for practical usage.

关 键 词：断层扫描 图像重建算法 图像处理 图像理解 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]