Research on the Reconstruction Algorithms of Limited-angle Reverse HelicalCone-beam CT
【摘 要】
:
As a common device,pipeline has been widely utilized in many areas such as petrochemical engineering,oceaneering and metallurgy.X-ray nondestructive testing
【出 处】
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Computational Biomedical Imaging Workshop(2015计算生物医学成像研讨会)
【发表日期】
:
2015年10期
论文部分内容阅读
As a common device,pipeline has been widely utilized in many areas such as petrochemical engineering,oceaneering and metallurgy.X-ray nondestructive testing for the pipeline is significant for ensuring the safety of transportation and operation.Due to the limitations of practical situations,the scanning is often available within a certain angular range,which caused limited-angle problem.In this talk we will give a brief review on the numerical results in X-ray nondestructive testing for pipeline in our recent work.Generally,the work mainly contains two aspects including scanning mode and reconstruction method.First,the limited-angle reverse helical cone-beam CT scanning is developed in the aspect of scanning mode.Then,several prior information based regularization methods are utilized in the reconstruction with the obtained projection data.Sparsity is very popular as the prior information and it has been utilized in many CT reconstruction tasks.Rank prior information is frequently mentioned in rank minimization theory related works,and it can be potentially utilized for the pipeline reconstruction problem.Then we will adopt Lp(0
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