Abstract
Computer-assisted medical diagnosis has grown its popularity among researchers and practitioners due to its high applicability and cost-effective applications. The use of learning methods in facilitating the processing and analyses of Medical Images has become necessary. Image de-blurring problem in Medical Imaging applications is a challenging task to improve the quality of the images. The class of Iterative Shrinkage Thresholding Algorithms (ISTA) is considered for handling the image de-blurring problems. These algorithms use first-order information and are tempting due to their simplicity. However, they converge pretty slowly. In this work, first, a faster version of ISTA is proposed by utilizing Nestrove’s updating rule. Later, the proposed approach is used to solve the image de-blurring problems arising in Medical Imaging. A theoretical study is performed to verify the improvements in the convergence rate of the modified fast ISTA. Numerical experiments suggest that the presented method for the image de-blurring problem outperforms the baseline ISTA method.
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Choudhary, H., Sahoo, K., Orra, A. (2023). Modified Iterative Shrinkage Thresholding Algorithm for Image De-blurring in Medical Imaging. In: Kumar, S., Sharma, H., Balachandran, K., Kim, J.H., Bansal, J.C. (eds) Third Congress on Intelligent Systems. CIS 2022. Lecture Notes in Networks and Systems, vol 608. Springer, Singapore. https://doi.org/10.1007/978-981-19-9225-4_35
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DOI: https://doi.org/10.1007/978-981-19-9225-4_35
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