FPGA Implementation of EM Algorithm for 3D CT Reconstruction

@article{Choi2014FPGAIO,
  title={FPGA Implementation of EM Algorithm for 3D CT Reconstruction},
  author={Young Kyu Choi and Jason Cong and Di Wu},
  journal={2014 IEEE 22nd Annual International Symposium on Field-Programmable Custom Computing Machines},
  year={2014},
  pages={157-160}
}
Although the expectation maximization (EM)based 3D computed tomography (CT) reconstruction algorithm lowers radiation exposure, its long execution time hinders practical usage. To accelerate this process, we introduce a novel external memory bandwidth reduction strategy by reusing both the sinogram and the voxel intensity. Also, a customized computing engine based on field-programmable gate array (FPGA) is presented to increase the effective memory bandwidth. Experiments on actual patient data… CONTINUE READING
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