工業(yè)CT 圖像直接三維重建是近年來工業(yè)CT 技術(shù)研究的前沿領(lǐng)域,針對FDK近似重建算法重建精度不高的問題，在不提高現(xiàn)有系統(tǒng)復(fù)雜程度的前提下，討論了一種新的垂直雙圓周掃描軌道在工業(yè)CT中的應(yīng)用，提出了相應(yīng)的FDK改進算法，獲取物體投影的完備數(shù)據(jù)，提高重建的精度。
關(guān)鍵詞： 工業(yè)CT 三維重建 錐束重建
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