Edge detection algorithm for enhancement of linear back projection tomographic images
Muhammad Jaysuman, Pusppanathan
Fazlul Rahman, Mohd Yunus
Nor Muzakkir, Nor Ayob
Ruzairi, Abdul Rahim, Prof. Dr.
Fatin Aliah, Phang Abdullah, Dr.
Usman Ullah, Sheikh, Dr.
Loew, Pei Ling, Dr.
Khairul Hamimah, Abas
Mohd Hafiz, Fazalul Rahiman, Dr.
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Process tomography (PT) is a leading technique for multiphase flow measurement and flow monitoring systems in various fields. PT has the advantage of interpreting acquired measurement data and transforming it into visual tomographic images. The most common method of image reconstruction uses the linear back projection algorithm which often results in blurry images. This paper proposes an enhancement of the reconstructed images using an edge detection image processing technique to convolve with the original image. This filtering technique calculates approximation changes of the horizontal and vertical image derivatives, thus further enhancing image accuracy. Several ultrasonic tomography images were put into a simulation test to validate it. Hence, the image results are being assessed for its performance.