DocumentCode
304568
Title
Tomographic artefacts suppression via backprojection operator optimization
Author
Kazantsev, I.G.
Author_Institution
Comput. Center, Novosibirsk, Russia
Volume
1
fYear
1996
fDate
16-19 Sep 1996
Firstpage
749
Abstract
An approach is described for determining a vector of summation weights which gives the best approximation in backprojection operation for image reconstruction from projections. An algorithm for the best choice of summation weights is presented and their influence on the reconstruction quality in the case of few projections is illustrated. Extension of the approach to the projection decomposed parts is considered. The method suggested results in artefacts suppression and reconstruction accuracy improvement
Keywords
computerised tomography; convolution; image reconstruction; medical image processing; optimisation; X-rays; approximation; backprojection operator optimization; image reconstruction quality; medical tomographs; parallel geometry; projections; reconstruction accuracy; summation coefficients; summation weights vector; tomographic artefacts suppression; tomographic convolution-backprojection; Computed tomography; Convolution; Fourier transforms; Geometry; Image reconstruction; Kernel; Null space;
fLanguage
English
Publisher
ieee
Conference_Titel
Image Processing, 1996. Proceedings., International Conference on
Conference_Location
Lausanne
Print_ISBN
0-7803-3259-8
Type
conf
DOI
10.1109/ICIP.1996.559607
Filename
559607
Link To Document