%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