Fast Real-time Image Reconstruction with Helical Cone-beam ART

摘要：

A method that can fast, real-time get the projection matrix in ART reconstruction is proposed based on helical cone-beam CT trajectory in this paper. For a given ray this method can rapidly acquire the indices and corresponding lengths of the voxels passed through by this ray through sorting the intersections between the ray and mesh planes. Meanwhile we only store the projection matrix elements required for a given ray and release them after using them. By doing so the computation time and the storage space are significantly reduced. The experimental results show that this method can heighten the speed and better suppress noise.

关键词： computed tomography algebraic reconstruction techniques cone-beam helical

作者: Zhen Xue Liangliang Zhang Jinxiao Pan

作者单位: Collage of Sciences North University of China Taiyuan, China National Labs for Electronic Measurement Technology North University of China Taiyuan, China

会议类型: 国际会议

会议名称: The 2010 International Conference on Computer Application and System Modeling(2010计算机应用与系统建模国际会议 ICCASM 2010)

会议地点: 太原

会议语种:英文

页码: 423-426

在线出版日期: 2010-10-22（万方平台首次上网日期，不代表论文的发表时间）