Image registration of the dual-channel spaceborne hyperspectral imager with motion compensation

Huijie Zhao; Xiaoyuan Zhang; Guorui Jia; Xianfei Qiu; Liang Zhai

doi:10.3788/IRLA20211022

Infrared and Laser Engineering, Volume. 50, Issue 3, 20211022(2021)

Image registration of the dual-channel spaceborne hyperspectral imager with motion compensation

Huijie Zhao¹, Xiaoyuan Zhang¹, Guorui Jia¹, Xianfei Qiu¹, and Liang Zhai²

¹Key Laboratory of Education Ministry of Precision Opto-mechatromics Technology, School of Instrumentation Science and Opto-electronics Engineering, Beihang University, Beijing 100191, China

²Chinese Academy of Surveying and Mapping, Beijing 100830, China

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Figures & Tables(10)

Fig. 1. Sketch map of field separation

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Fig. 2. Sketch map of imaging with motion compensation

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Fig. 3. Ground sampling distance of middle pixel on different lines （n is motion compensation ratio）

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Fig. 4. Distortion curve of VNIR and SWIR （n is motion compensation ratio）

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Fig. 5. Mismatch curve of SWIR channel（n is motion compensation ratio）

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Fig. 6. Original hyperspectral images (band30)

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Fig. 7. Result of geometric correction (band30)

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Fig. 8. Spectral reflectance curves of feature ground point

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Table 1. [in Chinese]
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Table 1. [in Chinese]
Field separation angle Motion compensation angle θ_n
SWIR1 SWIR2 n=2 n=4 n=6
0.5° 1.0° 2.426° 7.238° 11.932°

Table 2. [in Chinese]

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Table 2. [in Chinese]

	SIFT					Proposed method
	Object coordinate VNIR	Object coordinate SWIR	Error/pixel			Object coordinate VNIR	Object coordinate SWIR	Error/pixel
	Object coordinate VNIR	Object coordinate SWIR	\|x\|	\|y\|	Distance	Object coordinate VNIR	Object coordinate SWIR	\|x\|	\|y\|	Distance
1	(896.49,1214.57)	(891.30,1213.94)	5.2	0.6	5.2	(764.34,892.07)	(764.52,892.44)	0.2	0.4	0.4
2	(807.72,801.63)	(803.68,802.30)	4.0	0.8	4.1	(721.48,1308.15)	(721.63,1308.43)	0.1	0.3	0.3
3	(683.18,1581.33)	(678.90,1582.21)	4.1	0.9	4.2	(1080.13,591.93)	(1080.47,592.32)	0.3	0.4	0.5
4	(415.23,98.09)	(417.95,96.88)	2.7	1.2	2.9	(964.61,2115.28)	(964.95,2114.86)	0.3	0.4	0.5
5	(385.33,592.64)	(389.34,592)	4.0	0.6	4.0	(1125.58,1641.73)	(1125.42,1641.49)	0.3	0.2	0.4
6	(413.81,1045.86)	(416.40,1046.47)	2.6	0.6	2.7	(1217.77,1190.68)	(1217.63,1190.51)	0.1	0.2	0.2
7	(230.92,252.77)	(234.06.,251.92)	3.4	0.8	3.5	(1194.58,2019.39)	(1194.84,2019.07)	0.3	0.3	0.4
8	(309.25,868.61)	(312.89,869.13	3.6	0.5	3.7	(1275.79,1390.07)	(1275.88,1390.28)	0.1	0.1	0.1
9	(168.55,1439.82)	(173.13,1440.84)	4.6	1.0	4.7	(1569.27,872.26)	(1569.46,872.17)	0.2	0.1	0.2
10	(93.60,1874.59)	(97.04,1875.85)	3.4	1.3	3.6	(1747.45,470.69)	(1747.35,470.54)	0.1	0.1	0.1
Average			3.8	0.8	3.9	Average		0.2	0.3	0.3

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Huijie Zhao, Xiaoyuan Zhang, Guorui Jia, Xianfei Qiu, Liang Zhai. Image registration of the dual-channel spaceborne hyperspectral imager with motion compensation[J]. Infrared and Laser Engineering, 2021, 50(3): 20211022

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