Parallel performances of three 3D reconstruction methods on MIMD computers: Feldkamp, Block ART and SIRT algorithms

Deals with the parallel implementations of reconstruction methods in 3D tomography. 3D tomography requires voluminous data and long computation times. Parallel computing, on MIMD computers, seems to be a good approach to manage this problem. Here, the authors present the different steps of the parallelization on an abstract parallel computer. Depending on the method, the authors use two main approaches to parallelize the algorithms: the local approach and the global approach. Experimental results on MIMD computers are presented. Two 3D images reconstructed from realistic data are showed.