基于影像特征分析的架空输电线路三维实景建模

3D Real Scene Modeling of Overhead Transmission Line Based on Image Feature Analysis

架空输电线路的规模不断扩大,为人工巡检输电线路带来了诸多困难,而使用三维虚拟架空输电线路进行巡视成为了一种发展趋势。传统的倾斜摄影测量三维重建技术对一般表物模型有着较好的建模效果,而对杆塔和导线的三维建模效果不佳。针对传统方法这一缺点,提出了一种基于影像特征数据的参数拟合建模方案,使其现场真实状态和三维模型效果有效结合起来,显示出较大的技术优势。最后通过具体建模实例对比了这两种方法的建模整合效果,验证了所提出方法的有效性和技术潜力。

With the expansion of the scale of overhead transmission lines, it brings many difficulties for manual inspection of transmission lines. It is a trend to use 3D virtual overhead transmission lines to inspect the transmission lines. The traditional 3D reconstruction technique of tilt photogrammetry only has good modeling effect for general surface model, but the 3D modeling effect of pole tower and wire is not good. So, a method based on image feature data for the shortcoming of traditional method is proposed. The parameter fitting modeling solution makes the real state of the scene and the effect of the three-dimensional model more effective. Finally, the modeling integration effects of these two methods are compared according to specific modeling examples, and the effectiveness and technical potential of the scheme proposed is verified.