Wenyi Lai, Yong Fang. Block Adjustment of Satellite Images Supported by Spaceborne Photon Point Cloud[J]. Laser & Optoelectronics Progress, 2023, 60(10): 1028013
- Laser & Optoelectronics Progress
- Vol. 60, Issue 10, 1028013 (2023)
Fig. 1. Joint block adjustment process flow for spaceborne photon point cloud and stereo images
Fig. 2. Diagram of 3D terrain profile matching principle between multi-beam photon point cloud and DSM generated by stereo images
Fig. 3. Terrain feature points extracted from the photon profile point cloud
Fig. 4. Terrain features extracted from DSM generated by satellite images. (a) Valley line; (b) ridge line; (c) surface peak
Fig. 5. DSM generated by ZY-3 stereo images
Fig. 6. Comparison of photon point cloud before and after denoising. (a) Before denoising; (b) after denoising
Fig. 7. Corresponding relation of terrain features extracted from two kinds of data
Fig. 8. Distribution map of test area image, connection point, control point, check point in Xianyang
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Table 1. 3D terrain matching results of ICESat-2 point cloud and DSM
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Table 2. Analysis results of height difference between photon point cloud data and DSM before and after matching
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Table 3. Elevation error statistics under different slopes before and after terrain matching
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Table 4. Statistical results of terrain feature points extracted from photon point cloud data
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Table 5. Accuracy statistics of uncontrolled block adjustment and auxiliary block adjustment
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Table 6. Statistical results of terrain feature points extracted from photon point cloud data in Xi'an
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Table 7. Accuracy statistics of uncontrolled block adjustment and auxiliary block adjustment
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