Yenumula Lakshminarayana, Acharya Rajesh V, Kumar Umesh, Palani Selvam T, Roy Kallol, Patankar V H, Kar Soumitra
Industrial Tomography and Instrumentation Section, Isotope Production and Applications Division, Bhabha Atomic Research Centre (BARC), Trombay, Mumbai - 400085, India.
Industrial Tomography and Instrumentation Section, Isotope Production and Applications Division, Bhabha Atomic Research Centre (BARC), Trombay, Mumbai - 400085, India.
Appl Radiat Isot. 2017 Jun;124:75-82. doi: 10.1016/j.apradiso.2017.03.013. Epub 2017 Mar 18.
Ring artifacts have been studied for X-ray based Computed Tomography (CT) systems but not on γ-ray based in-situ applications. This paper discusses application of recently proposed automatic ring artifact reduction method (Yoon et al., 2016) on previously obtained experimental projection data from a γ-ray based Industrial Process Tomography (IPT) system for a prototype catalytic column. Studies include qualitative and quantitative evaluation of the method. It is observed that ring artifacts are suppressed without loss of significant information in γ-ray PT images.
环形伪影已在基于X射线的计算机断层扫描（CT）系统中得到研究，但尚未在基于γ射线的现场应用中得到研究。本文讨论了最近提出的自动环形伪影减少方法（Yoon等人，2016年）在先前从基于γ射线的工业过程断层扫描（IPT）系统获得的用于原型催化柱的实验投影数据上的应用。研究包括对该方法的定性和定量评估。可以观察到，在γ射线PT图像中，环形伪影得到了抑制，同时没有损失重要信息。
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