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A Method of Radiographic Image Quality Enhancement
2013 Fifth International Conference on Measuring Technology and Mechatronics Automation, 2013The quality of the image is one of the important influential factors in the process of defect evaluation of weld radiographic image. To improve the brightness and contrast of digital image of weld radiographic film, a new quality enhancement method in accordance with human visual system is proposed.
null Wei-Lei Mu +6 more
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Generalized fuzzy enhancement of image for radiographic testing weld
Proc Int Symp Image Signal Process Anal, 2005Since radiographic testing weld image possesses several shortcomings, such as bad contrast ratio, narrow range of grayscale and fuzzy image, common enhancement method cannot improve contrast ratio and at the same time preserve edges well. Fuzzy enhancement does not modify pixel graylevel in the fuzzy feature space just like histogram and can obtain ...
null Zhang Xiao-guang +2 more
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Radiographic image enhancement based on a triple constraint U-Net network
Insight: Non-Destructive Testing and Condition Monitoring, 2022Radiographic testing (RT) images of complex components are affected by several factors, including low greyscale levels, low contrast and blur. These factors can significantly restrict the accuracy and effectiveness of defect recognition.
Hongquan Jiang +2 more
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Radiographic Image Enhancement Method For Complex Components based on Deep Learning Theory
2022 IEEE 6th Information Technology and Mechatronics Engineering Conference (ITOEC), 2022The internal defects of complex components are usually detected by X-ray, and the detection images generally have the problems of large gray change and low contrast.
Hongquan Jiang +2 more
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A novel method of radiographic image enhancement based on phase symmetry
Insight: Non-Destructive Testing and Condition Monitoring, 2019In many important industrial machines, such as nuclear power equipment and steam turbines, the weld quality affects the overall safe operation of the equipment.
Hongquan Jiang, Yasheng Chang
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Digital techniques for image enhancement of radiographs
International Journal of Bio-Medical Computing, 1971Abstract This paper deals with digital, position variant and invariant linear and nonlinear techniques for image enhancement (Rozenfeld, 1969). The radiographic system, the image processing and display system, and the human visual system are discussed.
R P, Kruger +3 more
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Homomorphic Filtering for Radiographic Image Contrast Enhancement and Artifacts Elimination
International Conference on Frontiers in Intelligent Computing: Theory and Applications, 2015The contrast of radiographic images is provided at physical level by anti-scatter grids and is usually further improved at image processing stage. The known contrast improvement methods are mainly based on image non-linear manipulations that may cause residual artifacts in processed images.
I. Belykh
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Fuzzy entropy based interactive enhancement of radiographic images
Journal of Medical Engineering and Technology, 2007In certain radiographic images, fuzziness exists due to the vague nature of image characteristics and limitations of visual perception. Accordingly, a gap exists between the information content of an image and the information that can be retrieved. In this paper, a new fuzzy logic based intensification operator has been proposed for enhancement of ...
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Chest Radiographic Image Enhancement Based on Multi-Scale Retinex Technique
International Conferences on Biomedical and Bioinformatics Engineering, 2009Shu-Yue Chen, Ling Zou
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