基于空地链影像的空地一体联合空三方法A Method of Air-Ground Integrated Aerotriangulation Based on Air-Ground Link Photography
王刚,刘会云,肖建能,鲁路平
摘要(Abstract)：
在无人机低空倾斜摄影三维重建中，由于纯空中视角拍摄的影像无法观测到所有区域，导致近地面范围的模型会存在模糊和拉花的现象，影响模型在实际生产生活中的应用。为了改善模型的几何和纹理质量，本文提出了一种具有可操作性的空地一体联合三维重建方案。该方案的特点表现在两个环节：(1)在数据采集环节，除常规低空倾斜摄影外，增加了地面人工摄影和空地链摄影；(2)在数据处理环节，针对地面人工影像采集的现状，如采集时间长、易出现返工补拍的问题，开发了接力式空三作业模式来改善这些问题。该方案实现了空中影像和地面影像的联合空三和整体平差，空地一体联合空三重建的模型比使用纯空中视角影像重建的模型效果有显著提升，对三维重建技术有非常重要的参考价值。
关键词(KeyWords)： 空中三角测量;三维重建;倾斜摄影;空地一体;空地链摄影
基金项目(Foundation): 广东省自然资源厅科技项目（GDZRZYKJ2022004）
作者(Author): 王刚,刘会云,肖建能,鲁路平
DOI: 10.14188/j.2095-6045.20230091
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