结合足迹和相位信息的SAR高层建筑三维重建

doi:10.12305/j.issn.1001-506X.2025.05.10

系统工程与电子技术 ›› 2025, Vol. 47 ›› Issue (5): 1469-1486.doi: 10.12305/j.issn.1001-506X.2025.05.10

• 传感器与信号处理 • 上一篇

结合足迹和相位信息的SAR高层建筑三维重建

刘宁¹^,²^,³, 李芳芳¹^,²^,*, 李新武¹^,⁴, 洪文¹^,²^,³

1. 中国科学院空天信息创新研究院, 北京 100094
2. 中国科学院空间信息处理与应用系统技术重点实验室, 北京 100190
3. 中国科学院大学电子电气与通信工程学院, 北京 100049
4. 中国科学院数字地球重点实验室, 北京 100094

收稿日期:2024-03-20 出版日期:2025-06-11 发布日期:2025-06-18
通讯作者: 李芳芳
作者简介:刘宁 (1996—), 女, 博士研究生, 主要研究方向为高分辨率SAR图像建筑信息提取、层析SAR成像
李芳芳 (1986—), 女, 副研究员, 博士, 主要研究方向为干涉SAR信号处理、SAR三维成像
李新武 (1973—), 男, 研究员, 博士, 主要研究方向为极化干涉SAR、层析成像SAR、高分/超高分SAR
洪文 (1968—), 女, 研究员, 博士, 主要研究方向为多维度SAR数据处理、微波成像新概念新体制新方法
基金资助:
国家自然科学基金(62171435)

3D reconstruction of high-rise buildings from SAR combined with footprint and phase information

Ning LIU¹^,²^,³, Fangfang LI¹^,²^,*, Xinwu LI¹^,⁴, Wen HONG¹^,²^,³

1. Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China
2. Key Laboratory of Technology in Geospatial Information Processing and Application System, Chinese Academy of Sciences, Beijing 100190, China
3. School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
4. Key Laboratory of Digital Earth Science, Chinese Academy of Sciences, Beijing 100094, China

Received:2024-03-20 Online:2025-06-11 Published:2025-06-18
Contact: Fangfang LI

摘要/Abstract

摘要：

针对城区高层建筑形式多样、分布密集导致的相邻建筑区分和叠掩区长度提取困难的问题, 提出一种结合足迹和相位信息的高分辨率合成孔径雷达高层建筑三维重建方法。引入外部足迹信息与二次散射亮线配准, 得到合成孔径雷达图像上完整、准确的建筑足迹, 实现复杂情况下的相邻高层建筑区分。基于建筑足迹与干涉相位、足迹方向与干涉条纹方向的关系, 准确提取各足迹边叠掩区长度, 获得建筑高度。最后, 提取足迹缺失的高层建筑参数。根据各建筑足迹和高度实现高层建筑三维重建。实验结果表明, 所提方法具有较好的高层建筑三维重建能力。

关键词: 建筑足迹, 干涉合成孔径雷达, 高分辨率合成孔径雷达, 高层建筑, 三维重建

Abstract:

Aiming at the difficulty of distinguishing adjacent buildings and extracting the length of layover areas caused by the diverse forms and dense distribution of high-rise buildings in urban areas, a high-rise building three-dimensional (3D) reconstruction method from high-resolution synthetic aperture radar (SAR) based on footprint and phase information is proposed. By introducing external footprint information, registered with double bounce bright lines, complete and accurate building footprints on SAR images are obtained, and the distinction between adjacent high-rise buildings in complex situations is realized. Based on the relationship between the building footprint and the interferometric phase, the footprint direction and the interferometric fringe direction, the length of the layover area of each footprint edge is accurately extracted to obtain the building height. Finally, parameters of high-rise buildings with missing footprints are extracted. 3D reconst-ruction of high-rise buildings is realized based on the footprint and height of each building. Experimental results show that the proposed method has promising 3D reconstruction capabilities of high-rise buildings.

Key words: building footprint, interferometric synthetic aperture radar (InSAR), high-resolution synthetic aperture radar (SAR), high-rise building, three-dimensional (3D) reconstruction

中图分类号:

TN957.52

刘宁, 李芳芳, 李新武, 洪文. 结合足迹和相位信息的SAR高层建筑三维重建[J]. 系统工程与电子技术, 2025, 47(5): 1469-1486.

Ning LIU, Fangfang LI, Xinwu LI, Wen HONG. 3D reconstruction of high-rise buildings from SAR combined with footprint and phase information[J]. Systems Engineering and Electronics, 2025, 47(5): 1469-1486.

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参考文献 43

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参数	取值
距离向分辨率/m	0.58
方位向分辨率/m	1.1
入射角/(°)	33.28
空间垂直基线/m	168.18
时间基线/天	33

实验数据	建筑编号	是否有足迹	是否检测到	估计高度/m	实际高度/m	估计高度误差/m
1	1	是	是	69.01	71.14	-2.13
	2	是	是	71.19	71.25	-0.06
	3	否	是	78.78	81.61	-2.83
	4	否	是	78.78	81.90	-3.12
	5	是	是	76.08	74.39	1.69
	6	是	是	84.23	79.80	4.43
	7	是	是	79.34	79.63	-0.29
	8	是	是	117.37	82.07	35.30
	9	否	否	-	81.66	-
	10	否	是	79.34	83.77	-4.43
	11	是	是	61.13	84.09	-22.96
	12	是	是	88.58	83.47	5.11
	13	否	是	81.88	77.00	4.88
	14	是	是	62.49	61.81	0.68
	15	是	是	52.71	80.45	-27.74
	16	是	是	90.21	71.40	18.81
	17	是	是	65.75	69.99	-4.24
	18	是	是	77.17	79.05	-1.88
	19	是	是	75.54	79.46	-3.92
	20	是	是	80.97	77.06	3.91
	21	是	是	74.45	79.41	-4.96
	22	是	是	76.62	79.13	-2.51
	23	是	是	77.71	79.65	-1.94
	24	是	是	79.34	79.15	0.19
	25	是	是	83.69	80.55	3.14
2	1	是	是	16.30	84.34	-68.04
	2	是	是	84.77	84.31	0.46
	3	是	是	85.31	84.86	0.45
	4	是	是	147.81	89.40	58.41
	5	是	是	86.94	89.12	-2.18
	6	是	是	68.47	99.64	-31.17
	7	是	是	91.83	87.00	4.83
	8	是	是	77.71	80.68	-2.97
	9	是	是	82.60	81.77	0.83
	10	是	是	96.73	94.43	2.30
	11	否	是	76.08	74.33	1.75
	12	是	是	16.30	24.10	-7.80
	13	是	是	50.53	51.80	-1.27
	14	是	是	69.01	67.05	1.96
	15	是	是	119.55	99.00	20.55
	16	是	是	97.81	97.59	0.22
	17	是	是	98.90	98.29	0.61
	18	是	是	111.94	80.02	31.92
	19	是	是	79.33	79.05	0.28
	20	是	是	155.42	149.33	6.09
	21	是	是	80.42	79.85	0.57
	22	是	是	36.95	40.28	-3.33
	23	是	是	79.33	71.53	7.80
	24	是	是	73.36	70.25	3.11
	25	是	是	74.45	100.3	-25.85

状态	检测率/%	高度正确估计比例/%	平均绝对误差/m	均方根误差/m
滤波前	96.00	70.83	2.80	3.59
滤波后	98.00	79.59	2.70	3.37

方法	检测率/%	高度正确估计比例/%	平均绝对误差/m	均方根误差/m
方法1	88.00	40.91	5.02	5.72
方法2	88.00	45.45	4.47	5.15
本文方法	98.00	79.59	2.70	3.37

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结合足迹和相位信息的SAR高层建筑三维重建

3D reconstruction of high-rise buildings from SAR combined with footprint and phase information

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