首页| English| 中国科学院

Semisoft Generalized I1I1 Greedy Algorithm for CT Image Reconstruction

副标题:

时间:2018-06-25  来源:数学机械化重点实验室

题目:           Semisoft Generalized I1I1 Greedy Algorithm for CT Image Reconstruction

报告人:       Jiehua Zhu  (Georgia Southern University, USA)

时间地点:   2018.07.02  10:00am  N205

摘要:           In this talk, a generalized I1I1 greedy algorithm for signal and image recovery is first introduced. Its convergence and the superiority over the reweighted -minimization and greedy algorithms are demonstrated. Then this algorithm is extended as a semisoft generalized greedy algorithm by adapting the wavelet technique of semisoft thresholding. The extended algorithm is applied to image reconstruction by incorporating it into the BCPCS framework, resulting in a semisoft generalized total variation minimization algorithm for computed tomography (CT). Numerical tests indicate the proposed algorithm improves the image reconstruction for CT.
相关附件
相关文档