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http://dx.doi.org/10.1016/j.net.2020.04.032

Investigation of a blind-deconvolution framework after noise reduction using a gamma camera in nuclear medicine imaging  

Kim, Kyuseok (Department of Radiation Convergence Engineering, Yonsei University)
Lee, Min-Hee (Department of Pediatrics, Wayne State University School of Medicine)
Lee, Youngjin (Department of Radiological Science, Gachon University)
Publication Information
Nuclear Engineering and Technology / v.52, no.11, 2020 , pp. 2594-2600 More about this Journal
Abstract
A gamma camera system using radionuclide has a functional imaging technique and is frequently used in the field of nuclear medicine. In the gamma camera, it is extremely important to improve the image quality to ensure accurate detection of diseases. In this study, we designed a blind-deconvolution framework after a noise-reduction algorithm based on a non-local mean, which has been shown to outperform conventional methodologies with regard to the gamma camera system. For this purpose, we performed a simulation using the Monte Carlo method and conducted an experiment. The image performance was evaluated by visual assessment and according to the intensity profile, and a quantitative evaluation using a normalized noise-power spectrum was performed on the acquired image and the blind-deconvolution image after noise reduction. The result indicates an improvement in image performance for gamma camera images when our proposed algorithm is used.
Keywords
Blind deconvolution; Noise reduction; Gamma camera; Nuclear medicine imaging; Quantitative evaluation of image; performance;
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Times Cited By KSCI : 2  (Citation Analysis)
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