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The implementation of hybrid conjugate gradient method in electromagnetic tomography / Michelle Ubong Sari

Electromagnetic tomography (EMT) is a type of electrical tomography based on electromagnetic induction. Reconstructing images with EMT involves solving inverse problems, which are often poorly defined due to limited prior information about imaging features. Optimization methods such as conjugate gra...

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Main Author: Sari, Michelle Ubong
Format: Thesis
Language:English
Published: 2024
Subjects:
Analytical methods used in the solution of physical problems
Online Access:https://ir.uitm.edu.my/id/eprint/106180/1/106180.pdf
https://ir.uitm.edu.my/id/eprint/106180/
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id my.uitm.ir.106180
record_format eprints
spelling my.uitm.ir.1061802024-11-30T22:57:06Z https://ir.uitm.edu.my/id/eprint/106180/ The implementation of hybrid conjugate gradient method in electromagnetic tomography / Michelle Ubong Sari Sari, Michelle Ubong Analytical methods used in the solution of physical problems Electromagnetic tomography (EMT) is a type of electrical tomography based on electromagnetic induction. Reconstructing images with EMT involves solving inverse problems, which are often poorly defined due to limited prior information about imaging features. Optimization methods such as conjugate gradient (CG), QuasiNewton, and Steepest Descent can help minimize these problems. The conjugate gradient (CG) algorithm is an iterative method that efficiently handles equations with multiple inputs, saving time but requiring more memory. In this research, a hybrid CG method is used to reduce the number of iterations (NOI) and CPU time, achieving excellent numerical performance. This hybrid CG method is then implemented into the EMT system. The efficiency of the EMT and EMT-CG systems is evaluated based on error analysis using RMSE. The findings highlight the hybrid CG method's capability within the EMT system. 2024 Thesis NonPeerReviewed text en https://ir.uitm.edu.my/id/eprint/106180/1/106180.pdf The implementation of hybrid conjugate gradient method in electromagnetic tomography / Michelle Ubong Sari. (2024) Degree thesis, thesis, Universiti Teknologi MARA, Terengganu.
institution Universiti Teknologi Mara
building Tun Abdul Razak Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Mara
content_source UiTM Institutional Repository
url_provider http://ir.uitm.edu.my/
language English
topic Analytical methods used in the solution of physical problems
spellingShingle Analytical methods used in the solution of physical problems
Sari, Michelle Ubong
The implementation of hybrid conjugate gradient method in electromagnetic tomography / Michelle Ubong Sari
description Electromagnetic tomography (EMT) is a type of electrical tomography based on electromagnetic induction. Reconstructing images with EMT involves solving inverse problems, which are often poorly defined due to limited prior information about imaging features. Optimization methods such as conjugate gradient (CG), QuasiNewton, and Steepest Descent can help minimize these problems. The conjugate gradient (CG) algorithm is an iterative method that efficiently handles equations with multiple inputs, saving time but requiring more memory. In this research, a hybrid CG method is used to reduce the number of iterations (NOI) and CPU time, achieving excellent numerical performance. This hybrid CG method is then implemented into the EMT system. The efficiency of the EMT and EMT-CG systems is evaluated based on error analysis using RMSE. The findings highlight the hybrid CG method's capability within the EMT system.
format Thesis
author Sari, Michelle Ubong
author_facet Sari, Michelle Ubong
author_sort Sari, Michelle Ubong
title The implementation of hybrid conjugate gradient method in electromagnetic tomography / Michelle Ubong Sari
title_short The implementation of hybrid conjugate gradient method in electromagnetic tomography / Michelle Ubong Sari
title_full The implementation of hybrid conjugate gradient method in electromagnetic tomography / Michelle Ubong Sari
title_fullStr The implementation of hybrid conjugate gradient method in electromagnetic tomography / Michelle Ubong Sari
title_full_unstemmed The implementation of hybrid conjugate gradient method in electromagnetic tomography / Michelle Ubong Sari
title_sort implementation of hybrid conjugate gradient method in electromagnetic tomography / michelle ubong sari
publishDate 2024
url https://ir.uitm.edu.my/id/eprint/106180/1/106180.pdf
https://ir.uitm.edu.my/id/eprint/106180/
_version_ 1817847345221468160
score 13.223943

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