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Size Projection Algorithm: Optimal Thresholding Value Selection for Image Segmentation of Electrical Impedance Tomography
Joint Authors
Han, Yan
Li, Kun
Yang, Na
Wang, Jian
Nie, Peng-Fei
Zhang, Min
Source
Mathematical Problems in Engineering
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-10-20
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Thresholding is an efficient step to extract quantitative information since the potential artefacts are often introduced by the point-spread effect of tomographic imaging.
The thresholding value was previously selected only relying on engineering experience or histogram of tomographic image, which often presents a great challenge to determine an accurate thresholding value for various applications.
As the tomographic image features often do not provide sufficient information to choose the best thresholding value, the information implicit in the measured boundary data is introduced into the thresholding process in this paper.
A projection error, the relative difference between the computed boundary data of current segmentation and the measured boundary data, is proposed as a quantitative measure of such image segmentation quality.
Then, a new multistep image segmentation process, called size projection algorithm (SPA), is proposed to automatically determine an optimal thresholding value by minimising the projection error.
Results of simulation and experiment demonstrate the improved performance of the SPA-based tomographic image segmentation.
An application of size projection algorithm for gas-water two-phase flow visualisation is also reported in this paper.
American Psychological Association (APA)
Li, Kun& Yang, Na& Wang, Jian& Han, Yan& Nie, Peng-Fei& Zhang, Min. 2019. Size Projection Algorithm: Optimal Thresholding Value Selection for Image Segmentation of Electrical Impedance Tomography. Mathematical Problems in Engineering،Vol. 2019, no. 2019, pp.1-11.
https://search.emarefa.net/detail/BIM-1194307
Modern Language Association (MLA)
Li, Kun…[et al.]. Size Projection Algorithm: Optimal Thresholding Value Selection for Image Segmentation of Electrical Impedance Tomography. Mathematical Problems in Engineering No. 2019 (2019), pp.1-11.
https://search.emarefa.net/detail/BIM-1194307
American Medical Association (AMA)
Li, Kun& Yang, Na& Wang, Jian& Han, Yan& Nie, Peng-Fei& Zhang, Min. Size Projection Algorithm: Optimal Thresholding Value Selection for Image Segmentation of Electrical Impedance Tomography. Mathematical Problems in Engineering. 2019. Vol. 2019, no. 2019, pp.1-11.
https://search.emarefa.net/detail/BIM-1194307
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1194307