Angular assessment of the Mojette filtered back projection

Peggy Subirats, Myriam C. J. Servieres, Nicolas Normand, JeanPierre Guedon, J. Michael Fitzpatrick, Milan Sonka
2004 Medical Imaging 2004: Image Processing  
In this paper, we propose to perform a novel discrete implementation of the filtered back projection algorithm. For this, we use a version of the discrete exact Radon transform called the Mojette transform that has been developed in our team for few years. The initial questioning was centered about the angular distribution needed for the continuous Radon reconstruction. Because of the discrete set of angles used in the FBP algorithm, discrete angles issued from Farey's series were used. Our
more » ... ion of the FBP algorithm is compared with the classical FBP algorithm. The choice of the set of projection angles is discussed in order to produce a good and efficient angular sampling. Finally, the very different behaviors between the classical FBP and our algorithm justify our study.
doi:10.1117/12.533483 dblp:conf/miip/SubiratsSNG04 fatcat:nrbhzu6psfaydhxj3vokhm2tgi