Sai LI, Yong HU, Cai-Lan GONG, Wen-Tao SONG. A step-by-step geometric correction and error analysis of swing-swept array thermal infrared aerial image [J]. Journal of Infrared and Millimeter Waves, 2020, 39(2): 242
- Journal of Infrared and Millimeter Waves
- Vol. 39, Issue 2, 242 (2020)
Fig. 1. Schematic diagram of the optical structure system
Fig. 2. UAV bi-directional whiskbroom scanning system
Fig. 3. Wingspan direction point spatial resolution in -30°whiskbroom scanning
Fig. 4. Positioning simulation results of six angles
Fig. 5. Simulation results of positioning error from 0 to 90 degrees (a) latitude orientation error, (b) longitude orientation error
Fig. 6. Visual vector rigorous image correction model
Fig. 7. No control point geometric correction process
Fig. 8. Extraction of virtual control points
Fig. 9. Diagram of positioning error results
Fig. 10. Geometric correction results of visual vector method
Fig. 11. Infrared mosaic and temperature inversion diagram (a) the result of the study area after Mosaic， (b) correction result after Mosaic，(c) map to Google earth result，(d) infrared temperature inversion diagram
Fig. 12. The 8 control points in the result image and Google earth
Fig. 13. Comparison of distance relative errors of control point pairs
Fig. 14. Comparison of angular relative errors of control point pairs
Fig. 15. Relative errors of different swing-angle pairs
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Table 1. whiskbroom scanning thermal infrared camera parameters
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Table 2. POS simulation experimental data
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Table 3. Comparison of errors of six swing sweeps
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Table 4. positioning error results of swing scan images
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