| 一种面向倾斜影像三维建模的影像筛选方法 |
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| 引用本文： | 张明磊,张云生,邹峥嵘.一种面向倾斜影像三维建模的影像筛选方法[J].测绘工程,2018(3):68-71,80. |
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| 作者姓名： | 张明磊 张云生 邹峥嵘 |
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| 作者单位： | 中南大学 地球科学与信息物理学院,湖南 长沙,410083 |
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| 基金项目： | 卫星测绘技术与应用国家测绘地理信息局重点实验室开放基金项目，国家重点基础研究发展计划资助项目(973计划) |
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| 摘 要： | 倾斜摄影为城市三维建模提供更好数据源,同时增加摄影测量处理的数据量。文中提出一种基于自动空三结果稀疏点构建粗略表面模型的影像筛选方法,在保证精度相当情况下,减少参与三维重建的影像数据量,提高建模的效率。利用SWDC-5获取的航空倾斜摄影影像进行实验,当使用原始24.5%的影像数据时,模型优化时间减少为原来的36.1%,除个别植被区域外,利用筛选后影像重建的模型精度与采用全部影像重建的结果相当。
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| 关 键 词： | 三维重建 倾斜影像 影像筛选 模型优化 Acute3d快速建模 3D reconstruction oblique images image selection model refinement Acute3d rapid modeling |
An image selection method for 3D modeling of oblique images |
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| ZHANG Minglie,ZHANG Yunsheng,ZOU Zhengrong.An image selection method for 3D modeling of oblique images[J].Engineering of Surveying and Mapping,2018(3):68-71,80. |
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| Authors: | ZHANG Minglie ZHANG Yunsheng ZOU Zhengrong |
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| Abstract: | Oblique photogrammetry provides a better data source for urban 3D modeling,however it increases the amount of image data for photogrammetry processing.In this paper,an image selection method based on sparse point cloud from automatic aerial triangulation is proposed.T he method can reduce the amount of image data involved in 3D reconstruction and improve the efficiency of modeling. When only 24.5% of original images is used,the time of model optimization is reduced to 36.1%.Apart from some vegetation areas,the accuracy of the model is compared with the model reconstructed with all images. |
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| 本文献已被 CNKI 万方数据 等数据库收录！ |
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