Parallel Backprojector for Cone-Beam Computer Tomography

Authors:
Nikolay Sorokin
Affiliations:
-
Venue:
RECONFIG '08 Proceedings of the 2008 International Conference on Reconfigurable Computing and FPGAs
Year:
2008

Citing 0
Cited 2

Evaluation of the reconfiguration of the data acquisition system for 3D USCT

International Journal of Reconfigurable Computing - Special issue on selected papers from the international workshop on reconfigurable communication-centric systems on chips (ReCoSoC' 2010)
A comprehensive comparison of GPU- and FPGA-based acceleration of reflection image reconstruction for 3D ultrasound computer tomography

Journal of Real-Time Image Processing

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Abstract

This work presents a solution for the cone-beam Computer Tomography. The modified Feldkamp reconstruction algorithm is implemented as the parallel pipelined structure. The modifications of the original algorithm: parallelization and pipelining of the reconstruction, were formalized. FPGA design of the parallel pipelined backprojector implements all steps of the reconstruction from cone-beamprojections: filtering, weighted backprojection, real-time geometry computations. Due to the formal specification and parameterized VHDL implementation the FPGA design is easy modifiable and scalable. Evaluation results show that the speed of the FPGA implementation is significantly grater than PC solutions.