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- W2386799411 abstract "According to the characteristics of examination of pressure vessel with X-ray linear array real-time imaging,a method for welded seam image processing and the fast discovery of welding defect was proposed.The methods of adaptive median filter,variance ratio of interclass and intraclass segmentation,and mathematical morphology were used to decrease the noise of original welded seam image,to extract welded seam region,and to carry on high frequency enhancement transformation for the interior of extracted welded seam with frequency range sharpening.The simulation result indicated that the adaptive median filter could effectively remove the noise,and maintain the details of welded seam and defection edge,and the variance ratio of interclass and intraclass segmentation could strengthen the image objective and background contrast.When the latter was used together with the method of mathematic morphology,the weld region would accurately be extracted.The high frequency enhancement transformation could provide a clear visual effect for weld defection,so that the welding defect could be extracted according to its demonstrated characteristics." @default.
- W2386799411 created "2016-06-24" @default.
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- W2386799411 date "2007-01-01" @default.
- W2386799411 modified "2023-09-23" @default.
- W2386799411 title "Welding defect detection method based on high frequency enhancement of transform" @default.
- W2386799411 hasPublicationYear "2007" @default.
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