Implementation and Optimization of Katsevich Algorithm for Helical Cone-beam CT

摘要：

Recently, helical CT is more and more widely used in biomedicine and industry. And image reconstruction algorithms based on helical cone-beam scan are in rapid development. In 2001, Katsevich derived the first theoretically exact reconstruction formulae for helical cone-beam geometry in the filtered back-projection. The next year, he improved the formula. This paper researched Katsevich algorithm, implemented it by back-projection filtration reconstruction along the one and only one PI-line of each measured point, then introduced speed optimization projects in aspect of algorithm architect and implementation skill.

关键词： helical Cone-beam CT helical scanning Katsevich algorithm image reconstruction speed optimization 1

作者: TANG Qibo WEI Dongbo LI Dan XU Haijun

作者单位: Department of Mechanical Engineering and Automation, BeiHang University Beijing, 100083, China

会议类型: 国际会议

会议名称: 第七届国际测试技术研讨会

会议地点: 北京

会议语种:英文

在线出版日期: 2007-08-05（万方平台首次上网日期，不代表论文的发表时间）