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Amir Movafeghi Yahaghi Effat Rokrok Behrouz Mirzapour Mahdi 《Russian Journal of Nondestructive Testing》2020,56(4):361-368
Russian Journal of Nondestructive Testing - The location of reinforcement bar in concrete, the bar corrosion, diameter and the depth below the surface are important factors in the evaluation of the... 相似文献
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Mohammad Taghan Sasanpour Taheri Ali Movafeghi Amir Rokrok Behrouz 《Russian Journal of Nondestructive Testing》2019,55(12):967-974
Russian Journal of Nondestructive Testing - The purpose of this article is to determine the mathematical function of the optical behavior of radiographic films/images produced by gamma-ray... 相似文献
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Effat Yahaghi Mahdi Mirzapour Amir Movafeghi Parisa Mohammadi Matin Behrouz Rokrok 《Research in Nondestructive Evaluation》2019,30(2):80-88
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. 相似文献
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