Real-Time Orthophoto Mosaicing on Mobile Devices for Sequential Aerial Images with Low Overlap | |
Zhao, Yong2; Cheng, Yuqi2; Zhang, Xishan4; Xu, Shibiao5; Bu, Shuhui2; Jiang, Hongkai2; Han, Pengcheng2; Li, Ke3; Wan, Gang1 | |
刊名 | REMOTE SENSING |
2020-11-01 | |
卷号 | 12期号:22页码:15 |
关键词 | aerial images DOM low overlap mosaicing georeferenced orthophoto |
DOI | 10.3390/rs12223739 |
通讯作者 | Xu, Shibiao(shibiao.xu@nlpr.ia.ac.cn) |
英文摘要 | Orthophoto generation is a popular topic in aerial photogrammetry and 3D reconstruction. It is generally computationally expensive with large memory consumption. Inspired by the simultaneous localization and mapping (SLAM) workflow, this paper presents an online sequential orthophoto mosaicing solution for large baseline high-resolution aerial images with high efficiency and novel precision. An appearance and spatial correlation-constrained fast low-overlap neighbor candidate query and matching strategy is used for efficient and robust global matching. Instead of estimating 3D positions of sparse mappoints, which is outlier sensitive, we propose to describe the ground reconstruction with multiple stitching planes, where parameters are reduced for fast nonconvex graph optimization. GPS information is also fused along with six degrees of freedom (6-DOF) pose estimation, which not only provides georeferenced coordinates, but also converges property and robustness. An incremental orthophoto is generated by fusing the latest images with adaptive weighted multiband algorithm, and all results are tiled with level of detail (LoD) support for efficient rendering and further disk cache for reducing memory usages. Public datasets are evaluated by comparing state-of-the-art software. Results show that our system outputs orthophoto with novel efficiency, quality, and robustness in real-time. An android commercial application is developed for online stitching with DJIdrones, considering the excellent performance of our algorithm. |
资助项目 | National Key R&D Program of China[2018YFB2100602] ; National Natural Science Foundation of China[61620106003] ; National Natural Science Foundation of China[91646207] ; National Natural Science Foundation of China[61971418] ; National Natural Science Foundation of China[61671451] ; National Natural Science Foundation of China[61573284] |
WOS研究方向 | Remote Sensing |
语种 | 英语 |
出版者 | MDPI |
WOS记录号 | WOS:000594558800001 |
资助机构 | National Key R&D Program of China ; National Natural Science Foundation of China |
内容类型 | 期刊论文 |
源URL | [http://ir.ia.ac.cn/handle/173211/41653] |
专题 | 模式识别国家重点实验室_三维可视计算 |
通讯作者 | Xu, Shibiao |
作者单位 | 1.Aerosp Engn Univ, Inst Aeronaut, Beijing 101416, Peoples R China 2.Northwestern Polytech Univ, Inst Aeronaut, Xian 710072, Peoples R China 3.Zhengzhou Inst Surveying & Mapping, Zhengzhou 450052, Peoples R China 4.Inst Mech Technol, Xian 710043, Peoples R China 5.Chinese Acad Sci, Inst Automat, Beijing 100190, Peoples R China |
推荐引用方式 GB/T 7714 | Zhao, Yong,Cheng, Yuqi,Zhang, Xishan,et al. Real-Time Orthophoto Mosaicing on Mobile Devices for Sequential Aerial Images with Low Overlap[J]. REMOTE SENSING,2020,12(22):15. |
APA | Zhao, Yong.,Cheng, Yuqi.,Zhang, Xishan.,Xu, Shibiao.,Bu, Shuhui.,...&Wan, Gang.(2020).Real-Time Orthophoto Mosaicing on Mobile Devices for Sequential Aerial Images with Low Overlap.REMOTE SENSING,12(22),15. |
MLA | Zhao, Yong,et al."Real-Time Orthophoto Mosaicing on Mobile Devices for Sequential Aerial Images with Low Overlap".REMOTE SENSING 12.22(2020):15. |
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