TY - JOUR T1 - Second-Order Total Variation and Primal-Dual Algorithm for CT Image Reconstruction JO - International Journal of Numerical Analysis and Modeling VL - 1 SP - 76 EP - 87 PY - 2016 DA - 2016/01 SN - 14 DO - http://doi.org/ UR - https://global-sci.org/intro/article_detail/ijnam/411.html KW - CT image reconstruction, regularization method, second-order total variation, primal-dual algorithm. AB -

In this paper, we proposed a regularization model based on second-order total variation for CT image reconstruction, which could eliminate the 'staircase' caused by total variation (TV) minimization. Moreover, some properties of second-order total variation were investigated, and a primal-dual algorithm for the proposed model was presented. Some numerical experiments for various projection data were conducted to demonstrate the efficiency of the proposed model and algorithm.