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

Abstract

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

CLC Number:

TN957.52

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.

Figures/Tables 32

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

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