ISSN 1004-4140
CN 11-3017/P
Volume 21 Issue 2
Jun.  2012
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YANG Wen-liang, WEI Dong-bo. A Fast Algebraic Reconstruction Algorithm Based on Improved Projection Coefficient Computation[J]. CT Theory and Applications, 2012, 21(2): 187-195.
Citation: YANG Wen-liang, WEI Dong-bo. A Fast Algebraic Reconstruction Algorithm Based on Improved Projection Coefficient Computation[J]. CT Theory and Applications, 2012, 21(2): 187-195.
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A Fast Algebraic Reconstruction Algorithm Based on Improved Projection Coefficient Computation

  • Department of Mechanical Engineering and Automation, Beihang University, Beijing 100191, China

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  • Received Date: January 12, 2012
  • Available Online: December 09, 2022
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    • Abstract
  • Algebraic Reconstruction Technique is an important method for image reconstruction. To improve the reconstruction speed of ART, this paper presents a new and fast algorithm to calculate projection coefficient based on different situations of grids intercepted by ray. This Algorithm can calculate the projection coefficient by simple operation such as addition, subtraction and comparison. Since the computation of intersection and sorting in traditional algorithms are avoided, the reconstruction speed is greatly increased. The experiments using Shepp-Logan phanom show that the new algorithm is more effective than the traditional algorithms.
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