ISSN 1004-4140
CN 11-3017/P
YAN Tian-feng, SUN Yan, SUN Yi. Tomosynthesis Projection Simulation Based on GPU[J]. CT Theory and Applications, 2011, 20(1): 1-10.
Citation: YAN Tian-feng, SUN Yan, SUN Yi. Tomosynthesis Projection Simulation Based on GPU[J]. CT Theory and Applications, 2011, 20(1): 1-10.

Tomosynthesis Projection Simulation Based on GPU

  • Tomosynthesis can reconstruct any sectional image of object using limited angle projection. Before the research of reconstruction method,projection simulation is an important step,this paper proposed a projection simulation method based on GPU Raycasting algorithm. Comparing to CPU simulation method,GPU simulation method is faster in calculation and much closer to the practical projection based on hardware-based trilinear interpolation. This paper simulates projection using traditional CPU method and GPU method respectively,reconstructs the projections above by ART algorithm and Wavelet-Galerkin algorithm and achieves good results.
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