.png){kind=icon}
返回
Fast γ Photon Imaging for Inner Surface Defects Detecting
.png){kind=icon}
OA
AI
DOI：10.3390/s21238134.png)
.png){kind=icon}
.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
Only a few effective methods can detect internal defects and monitor the internal state of complex structural parts. On the basis of the principle of PET (positron emission computed tomography), a new measurement method, using gamma photon to detect defects of an inner surface, is proposed. This method has the characteristics of strong penetration, anti-corrosion and anti-interference. With the aim of improving detection accuracy and imaging speed, this study also proposes image reconstruction algorithms, combining the classic FBP (filtered back projection) with MLEM (maximum likelihood expectation Maximization) algorithm. The proposed scheme can reduce the number of iterations required, when imaging, to achieve the same image quality. According to the operational demands of FPGAs (field-programmable gate array), a BPML (back projection maximum likelihood) algorithm is adapted to the structural characteristics of an FPGA, which makes it feasible to test the proposed algorithms therein. Furthermore, edge detection and defect recognition are conducted after reconstructing the inner image. The effectiveness and superiority of the algorithm are verified, and the performance of the FPGA is evaluated by the experiments.
Keyword:
positron emission computed tomography
field-programmable gate array
iteration algorithm
internal defect detection
image reconstruction
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
IF:
3.5
论文数:
7.2W
被引数:
20.9W
机构
暂无机构信息
引用论文
分享收藏Micro‐spatial separation and associated morphological adaptations in the original case of avian character displacement.png)
Ibis
IbisIF0
PREAI
分享收藏Outline Feature Extraction of Positron Image Based on a 3D Anisotropic Convolution OperatorIEEE ACCESSOAAI
IEEE ACCESSIF3.6
OAAI分享收藏
Sample size effect on the determination of the irreversibility line of high-T
c superconductors样本量对高温超导体不可逆线确定的影响
PREAI
分享收藏分享收藏High-speed inspection of delamination defects in unidirectional CFRP by non-contact eddy current testing单向CFRP分层缺陷的非接触式涡流检测
PREAI
分享收藏
查看更多内容