METHOD FOR APPLYING FILTER COMPONENT FOR ANALYTICAL TOMOGRAPHIC RECONSTRUCTION IN TOMOGRAPHIC IMAGING SYSTEM, INVOLVES APPLYING ALGEBRAIC RECONSTRUCTION ALGORITHM TO VIRTUAL PROJECTION DATA TO PRODUCE RECONSTRUCTED REPRESENTATIONS

A method (10) for applying a filter component for an analytical tomographic reconstruction technique, e.g. filtered backprojection, used in tomographic imaging is described. The method (10) comprises providing (11) an algebraic reconstruction algorithm for reconstructing a spatial representation of a volume of interest from a projection data set. It thereby takes into account a geometry of the tomographic imaging. The method also comprises applying (15) the algebraic reconstruction algorithm to a plurality of virtual projection data sets - corresponding with a basis vector of a basis for the projection space - to produce a plurality of reconstructed spatial representations and determining (16) the filter component using the plurality of reconstructed spatial representations, and applying the filter. Applying the analytical reconstruction technique with the determined filter component may inherit beneficial properties from the algebraic reconstruction algorithm, e.g. versatility and robustness to noise, without incurring the associated computational cost.

Patent Publication Number: EP2734981

Year filing: 2012

Year approval: 2015

Year publication: 2014

Status: Requested

Technology domains: Computer technology

Validated for IOF-key: Yes

Attributed to: Associatie Universiteit & Hogescholen Antwerpen