To improve the accuracy and efficiency of few-view computed tomography( CT) image reconstruction,CT image reconstruction is studied from limited view and sparse view,and a novel objective function of total variation norm is proposed. According to the newly-developed objective function,the next iteration is based on the information acquired in the previous one,through which the updated sparse representation model is achieved at each iteration. Additionally,the constrained optimization problem is converted to...
【基金】
国家自然科学基金(91538112)~~
【更新日期】
2017-05-16
【分类号】
TP391.41
【正文快照】
网络出版地址:www.cnki.net/kcms/detail/11.2625.V.20161028.1515.001.html引用格式:蔺鲁萍,王永革.不完全角度CT图像重建的模型与算法[J].北京航空航天大学学报,2017,43(4):823-830.LIN L P,WANG Y G.CT image reconstruction model and algorithm from few views[J].Journal