| Imaging range-ability of particular ERT reconstruction algorithms | |
Ma YX ; Wang M; Zheng ZC(郑之初); Wu YX(吴应湘); Holliday N; Ma, Yixin
| |
| Source Publication | 2nd World Congress on Industrial Process Tomography |
| 2014 | |
| Conference Name | 2nd World Congress on Industrial Process Tomography |
| Conference Date | August 29, 2001 - August 31, 2001 |
| Conference Place | Hannover, Germany |
| Abstract | The Electrical Resistance Tomography technique can produce color-labeled or gray images to show the conductivity distribution across a sensing domain. However, it has limited accuracy because of the difficulty in solving this type of non-linear electric field problem. This paper presents the results of several simulation studies to determine the spatial resolution and distinguish-ability, collectively terms as range-ability, of four ERT reconstruction algorithms. The algorithms are: the equi-potential line based back-projection (EBP) method, the sensitivity coefficient based back-projection (SBP) method, the generalized inverse matrix based iterative algorithm (GIMA) and the sensitivity theorem based iterative method (STM). By comparing the results, it was found that, the GIMA using prior-knowledge gives good range-ability for reconstructing distinct objects when the conductivity contrast between the objects and the background is small; the STM has the strongest ability of the four algorithms to recognize a continuous conductivity distribution and deliver the ‘true value’, the range-ability of the two back-projection algorithms are less affected by the conductivity contrast, however the object edges in the reconstructed image are far more blurred than that in STM and GIMA images. It was also noticed that the EBP method has better distinguish-ability than the SBP method for imaging distinct objects. © 2014 International Society for Industrial Process Tomography. |
| Keyword | Backprojection Algorithms Conductivity Distributions Electric Field Problems Electrical Resistance Tomography Generalized Inverse Matrix Reconstructed Image Reconstruction Algorithms Sensitivity Coefficient |
| Department | LMFS多相流及流固耦合(LHO) |
| ISBN | 9780853163183 |
| Indexed By | EI |
| Language | 英语 |
| Document Type | 会议论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/60232 |
| Collection | 流固耦合系统力学重点实验室 |
| Corresponding Author | Ma, Yixin |
| Recommended Citation GB/T 7714 | Ma YX,Wang M,Zheng ZC,et al. Imaging range-ability of particular ERT reconstruction algorithms[C]2nd World Congress on Industrial Process Tomography,2014. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment