%0 Journal Article
%A JI Dong-jiang
%A ZENG Li
%A ZOU Xiao-bing
%T Penalty of SART reconstruction algorithm for cone-beam CT
%D 2008
%R 10.3778/j.issn.1002-8331.2008.28.051
%J Computer Engineering and Applications
%P 152-154
%V 44
%N 28
%X In SART（Simultaneous Algebraic Reconstruction Technique），there is no restrict to image space，so the image space’s noise will increase after the definite number of iteration.In order to solve this problem，for three dimensional cone-beam CT，a penalty SART is researched，at the same time，this means combined with ordered subsets is also researched.Computer simulation experiment results show that，in cone-beam CT image reconstruction，this means can improve the convergence speed of image reconstruction and reduce the effect coming from the noise.
%U http://cea.ceaj.org/EN/10.3778/j.issn.1002-8331.2008.28.051