عنوان
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FISTA Algorithm for Radiography Images Enhancement with background Blurring Removal
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نوع پژوهش
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مقاله چاپشده در مجلات علمی
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کلیدواژهها
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Industrial radiography; image enhancement; Fast Iterative Shrinkage-Thresholding Algorithm (FISTA); blurring removal
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چکیده
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Testing and detecting potential defects in works of art is usually required to cause minimal or no damage; industrial Radiography Testing (RT) is often the method of choice provided the images are of the required high quality and yield high defect detection sensitivity. Various digital image processing methods can be employed to achieve improved image quality and information extraction as required. The level and nature of the noise in the RT images is usually unknown. In addition to the different noises, the image quality is degraded by the blurring effect. In this study, a modified form of the Fast Iterative Shrinkage-Thresholding Algorithm (FISTA) with quadratic regularization strategy was developed and applied to remove the blurring. The output of the application of the method to number RT images of five art objects was evaluated by industrial radiography and antiquities experts. It was confirmed that the applied method was efficient and improved image quality and defect detection.
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پژوهشگران
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عفت یاحقی (نفر اول)، مهدی میرزاپور (نفر دوم)، امیر موافقی (نفر سوم)، پریسا محمدی متین (نفر چهارم)، بهروز رک رک (نفر پنجم)
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