Positioning method suitable for welding seam in pipeline
The invention discloses a positioning method and system suitable for a welding seam in a pipeline, and belongs to the technical field of pipeline welding seam detection. Firstly, a positioning coordinate system of the welding seam in the pipeline is established, and a direction characterization mode...
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| creator | LIU ZHONGYUAN JIANG WEIHAI WEI SHUSHU LI FAN LI JIANXIN LI TAIJIANG LI JUTAO YANG BIAO QIN YIXI LI WEI LI SHENGWEN CHENG SHI ZHANG DAWEI |
| description | The invention discloses a positioning method and system suitable for a welding seam in a pipeline, and belongs to the technical field of pipeline welding seam detection. Firstly, a positioning coordinate system of the welding seam in the pipeline is established, and a direction characterization mode of the welding seam in the pipeline is determined; determining the width of a welding seam in the pipeline; a welding seam image in the pipeline is obtained manually, and a welding seam image histogram is established after segmentation; secondly, remotely collecting an image in the pipeline, segmenting the image, establishing a histogram of the image in the pipeline, and comparing the histogram with the established weld seam image histogram; if the similarity of the statistical data is smaller than a set value, the collected image in the pipeline is not a weld seam image; and if the similarity of the statistical data is not less than a set value, verifying the acquired in-pipeline image by using a minimum frame se |
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| subjects | INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING |
| title | Positioning method suitable for welding seam in pipeline |
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