文献类型：期刊文献

英文题名：A WEIGHTED FILTERED BACK PROJECTION ALGORITHM FOR LOG CT TWO-DIMENSIONAL AND THREE-DIMENSIONAL IMAGE RECONSTRUCTION

作者：Xu Jiahe[1] Zhou Yucheng[1] Qi Yuhan[1] Hou Xiaopeng[1]

第一作者：徐佳鹤

通信作者：Xu, JH[1]

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, Beijing 100091, Peoples R China

年份：2016

卷号：61

期号：6

起止页码：971-982

外文期刊名：WOOD RESEARCH

收录：;EI(收录号：20170803366653);Scopus(收录号：2-s2.0-85013103903);WOS:【SCI-EXPANDED(收录号:WOS:000390629400012)】；

基金：This work is supported by the Forestry Projects in the central level public welfare scientific research institutes basic scientific research business special funds CAFYBB2014QA019, the Forestry Projects in the central level public welfare scientific research institutes basic scientific research business special funds CAFYBB2016QA010, and the National Natural Science Foundation of China 31570711.

语种：英文

外文关键词：Log; filtered back projected (FBP); image reconstruction; computer tomography (CT); non-destructive testing (NDT)

摘要：Log computer tomography (CT) image reconstruction is the kernel of wood CT non-destructive testing (NDT) technology. In this paper, based on the logs physical properties and the X-rays propagation characteristics in solid, the X-ray wave equation inside logs is deduced. A weighted filtered back projection (FBP) algorithm for log CT image reconstruction is proposed. Four group of logs are chosen for simulations on the weighted FBP algorithm. In the two-dimensional image reconstruction process, the capabilities between conventional FBP algorithm and weighted FBP algorithm are compared to verify the effectiveness of the algorithms for logs of different species. From both the image quality and data results, it can be clearly seen that the weighted FBP algorithm has good performance and advantages for image reconstruction process of log CT scan. The three-dimensional log image reconstruction is well completed, but has a big room for improvement.