| 摘要: |
| 提出了一种基于图像的三维重建的绝缘子覆冰在线监测方法。该方法运用计算机双目视觉技术，通过2台位置不同的摄像机采集2幅绝缘子覆冰图像，在对摄像机进行标定后，利用图像间的视差计算出覆冰绝缘子在三维空间的坐标，重建出覆冰绝缘子的三维模型，再由三维点云模型计算得到绝缘子覆冰的厚度及重量。应用所提出方法对多组实测图像进行三维重建和比较分析，结果表明该方法能够准确计算绝缘子覆冰的厚度和重量，还可反映绝缘子覆冰的厚度分布特征。 |
| 关键词: 绝缘子 覆冰 图像处理 三维重建 监测 |
| DOI： |
| 分类号: |
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| Insulator icing monitoring based on 3D image reconstruction |
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YANG Hao, WU Wei
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State Key Laboratory of Power Transmission Equipment & System Security and New Technology，
Chongqing University，Chongqing 400044，China
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| Abstract: |
| The online monitoring of insulator icing is proposed based on 3D image reconstruction applying the computer binocular vision technology. Two images of an ice-covered insulator are taken by two cameras in different locations. The coordinates of the insulator in 3D space are calculated by the parallax between two images after the calibration of cameras and its 3D model is then reconstructed. The thickness and weight of ice are calculated based on its point cloud model. 3D models are reconstructed for multiple real image pairs and the calculated results are compared with the manual measurements，which show that the calculation is highly precise and the distribution of icing thickness is got as well. |
| Key words: insulator icing image processing 3D reconstruction monitoring |
