Implementation of Generalized Back Projection Algorithm in 3-D EIT

被引：8
|
作者：
Wang, Hongbin [1 ]
Xu, Guizhi [1 ]
Zhang, Shuai [1 ]
Yin, Ning [1 ]
Yan, Weili [1 ]
机构：
[1] Hebei Univ Technol, Prov Minist, Joint Key Lab Electromagnet Field & Elect Apparat, Tianjin 300130, Peoples R China
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2011年 / 47卷 / 05期
基金：
中国国家自然科学基金;
关键词：
Electrical impedance tomography; generalized back projection algorithm; image evaluation; image reconstruction; inverse problems; ELECTRICAL-IMPEDANCE TOMOGRAPHY; RECONSTRUCTION; IMAGES;
D O I：
10.1109/TMAG.2010.2085423
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Electrical impedance tomography (EIT) is an imaging modality of determining imaging the interior conductivity distribution within an object. In the paper, generalized back projection algorithm (GBPA) is proposed for EIT image reconstruction. The algorithm is based on node back projection algorithm (NBPA), and extends projection range to arbitrary part of the object. To evaluate the proposed method, GBPA is first applied to image reconstruction using a simulated cylinder model. Compared with conventional back projection algorithm (BPA) and NBPA, the images reconstructed by GBPA are more accurate in terms of several metrics used in the paper. In addition, we present image reconstruction results using a 128-channel EIT system to demonstrate the performance of GBPA in real experiments.
引用
收藏
页码：1466 / 1469
页数：4
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