一种新颖三维ICT 扫描轨道及重构算法

工业CT 图像直接三维重建是近年来工业CT 技术研究的前沿领域,针对FDK近似重建算法重建精度不高的问题，在不提高现有系统复杂程度的前提下，讨论了一种新的垂直双圆周扫描轨道在工业CT中的应用，提出了相应的FDK改进算法，获取物体投影的完备数据，提高重建的精度。
关键词： 工业CT 三维重建 锥束重建
Novel ICT Scan Mode and It s FDK Reconstruction Algorithm WANG Zhen1 WANG Mingquan2 （1. The Ministry Education Key Lab for Instrumentation Science and Dynamic Test，North University of China,Taiyuan 030051,China. 2. Department of Engineering Physics,Tsinghua University， Beijing 100084,China） Abstract :Directly 3-D Image reconstruction of Industrial Computed Tomography ( ICT) is the front field of technology in recent years. For the low reconstructed exactness of approximately FDK algorithm, with the same complexity, discuss a novel two-orthogonal-circle orbit implication in ICT, bring up
corresponding improved FDK algorithm ,obtain the sufficient data, improve the reconstruction exactness.
Key words : ICT;3-D reconstruction ;cone beam reconstruction