[1]马东岭*,石壮,吴鼎辉,等.基于逐层优化SGM的倾斜影像三维重建[J].山东建筑大学学报,2021,36(02):44-52.[doi:10.12077/sdjz.2021.02.007]
 MA Dongling*,SHI Zhuang,WU Dinghui,et al.3D reconstruction of oblique image based on layer-by-layer optimization of semi-global matching[J].Journal of Shandong jianzhu university,2021,36(02):44-52.[doi:10.12077/sdjz.2021.02.007]
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基于逐层优化SGM的倾斜影像三维重建()
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《山东建筑大学学报》[ISSN:1673-7644/CN:37-1449/TU]

卷:
36
期数:
2021年02期
页码:
44-52
栏目:
研究论文
出版日期:
2021-04-15

文章信息/Info

Title:
3D reconstruction of oblique image based on layer-by-layer optimization of semi-global matching
文章编号:
1673-7644(2021)02-0044-09
作者:
马东岭*石壮吴鼎辉毛力波
(山东建筑大学 测绘地理信息学院,山东 济南 250101)
Author(s):
MA Dongling* SHI Zhuang WU Dinghui MAO Libo
( School of Surveying and Geo-Informatics, Shandong Jianzhu University, Jinan 250101, China )
关键词:
半全局匹配倾斜影像三维重建逐层优化
Keywords:
semi-global matching oblique image 3D reconstruction layer-by-layer optimization
分类号:
P237
DOI:
10.12077/sdjz.2021.02.007
文献标志码:
A
摘要:
基于传统的半全局匹配(SGM)进行无人机倾斜影像三维重建时,匹配效率较低且容易产生误匹配,而逐层优化SGM是提高倾斜影像三维重建精度和效率的有效方法。文章在无人机倾斜影像三维重建过程中采用逐层优化SGM,利用低分辨率金字塔的匹配结果限制高分辨率金字塔的视差搜索范围,对SGM的动态规划路径进行像素约束,并对倾斜影像像对及像组进行匹配和三维重建实验。结果表明:采用逐层优化SGM时,倾斜影像像对的匹配时间缩短了30%,且其结果中包括了更多的视差信息及更少的错误匹配点;以逐层优化SGM的匹配结果进行三维重建,提高了模型的精细化程度;在建筑物和相对平坦的道路、草地等区域拥有了更好的三维重建效果,而在林木及测区边缘区域的三维重建效果有所降低。
Abstract:
It is easy to generate mismatches when 3D reconstruction based on UAV oblique image is carried out based on traditional semi-global matching(SGM), and the matching efficiency is low. SGM based on layer-by-layer optimization is an effective method to improve the accuracy and efficiency of 3D reconstruction based on oblique image. In this article, SGM based on layer-by-layer optimization is used in the process of 3D reconstruction based on UAV oblique images, the matching result of the low resolution pyramid is used to limit the search range of high resolution pyramid, pixel constraints are applied to the dynamic planning paths of SGM, and the experiment of matching and 3D reconstruction based on oblique image pairs and oblique image groups is carried out. The results show that: by using SGM based on layer-by-layer optimization, the matching time based on oblique image pairs is reduced by 30%, and the matching results include more parallax information and fewer mismatching points. The 3D reconstruction based on the matching result of SGM based on layer-by-layer optimization improves the refinement of the model. It has better 3D reconstruction effect in buildings, relatively flat roads and grasslands. However, the effect reduces in the forest and the edge of the survey area.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2020-03-13 基金项目:山东省高等学校科技计划项目(J18KA183);山东省住房和城乡建设厅科技计划项目(2014KY004);山东省研究生导师指导能力提升项目(SDYY17070)作者简介:马东岭(1980-),女,副教授,博士,主要从事摄影测量与三维重建等方面的研究。E-mail: mdling2003@sdjzu.edu.cn[*通讯作者]
更新日期/Last Update: 2020-12-23