Abstract
Image reconstruction is a very important processing step in the analysis of medical images. This paper describes the framework of image reconstruction developed using filtered backprojection algorithm based on Radon transform in MATLAB. Acquisition of image data and image pre-processing were conducted to format the images for further analysis of the images. The sample image of CT slice was converted to sinogram by Radon transform and the reconstructed image was generated using filtered backprojection. The simulated results are analyzed and evaluated using image quality assessment methods. The internal structure and main features are shown in the reconstructed image. The image has a Structural Similarity Index (SSIM) value of 0.9839 and a mean-squared error (MSE) value of 0.0002. The reconstruction is precise within the framework of suggested image reconstruction system as the reconstructed image has a high similarity with the original image. The effects of number of projections, varying filters and varying cut-off frequency in the image reconstruction system were studied and analyzed. Further studies can aim at using more advanced filters and interpolation as well as implement other methods or techniques on the presented process.
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Acknowledgements
The author acknowledges CERVIE of UCSI University for the conference fund and deepest gratitude and appreciation toward Wan Zailah Wan Said, Dr. Suzlin N.M. and Prof. Mohamad Tariqul Islam for guiding to accomplish this project.
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Ai, T.C., binti Wan Said, W.Z., Sahar, N.M., Islam, M.T. (2023). Image Reconstruction Technique Using Radon Transform. In: Hassan, M.H.A., Zohari, M.H., Kadirgama, K., Mohamed, N.A.N., Aziz, A. (eds) Technological Advancement in Instrumentation & Human Engineering. ICMER 2021. Lecture Notes in Electrical Engineering, vol 882. Springer, Singapore. https://doi.org/10.1007/978-981-19-1577-2_55
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DOI: https://doi.org/10.1007/978-981-19-1577-2_55
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