Image Reconstruction for Solid Profile Measurement in ERT using Non-invasive Approach

Yasmin Abdul Wahab (Universiti Malaysia Pahang, Malaysia)
Ruzairi Abdul Rahim (Universiti Teknologi Malaysia, Malaysia)
Mohd Hafiz Fazalul Rahiman (Universiti Malaysia Perlis, Malaysia)
Leow Pei Ling (Universiti Teknologi Malaysia, Malaysia)
Suzanna Ridzuan Aw (TATiUC, Malaysia)
Muhammad Jayasuman Pusppanathan (Universiti Teknologi Malaysia,Malaysia)
Mohd Fadzli Abd Shaib (Universiti Tun Hussein Onn, Malaysia)
Herlina Abdul Rahim (Universiti Teknologi Malaysia, Malaysia)
Elmy Johana Mohamad (Universiti Tun Hussein Onn, Malaysia)

TELKOMNIKA (Telecommunication Computing Electronics and Control)
Vol 15, No 4: December 2017

Image reconstruction software and its image reconstruction algorithm are an important step towards constructing a tomography system. This paper demonstrates an image reconstruction of solid profile using linear back projection (LBP) algorithm and global threshold. A forward problem and inverse problem are discussed. The modelled of sensitivity distributions using COMSOL proved that the system is able to detect the liquid-solid regime in vertical pipe. Additionally, the location of the phantom can be easily distinguished using LBP algorithm and thresholding technique. The simulations and experiments results indicate that the sensitivity distribution of non-invasive ERT system can be applied in getting a tomogram of the medium of interest.