Infrared and Laser Engineering, Volume. 53, Issue 9, 20240071(2024)
Research on temperature difference character between visible light and infrared target and background
Figures & Tables(16)
Fig. 1. Mutual position between vehicle target and infrared thermal imager
Fig. 2. Mutual position between concrete fortification and infrared thermal imager
Fig. 5. Vehicle and background temperature difference change curve
Fig. 6. Concrete fortification and background temperature change curve
Fig. 7. Concrete fortification and background temperature difference change curve
Fig. 8. Infrared imaging effect of steel plate target at 8:10 a.m.
Fig. 9. Infrared imaging effect of steel plate target at 10:40 a.m.
Fig. 10. Infrared imaging effect of steel plate target at 14:30 p.m.
Fig. 11. Schematic diagram of the optical system of the infrared television stabilization and tracking device
Fig. 12. Diagram of the relationship between infrared stable sight tracking device MRTD and operating distance
Fig. 13. IR and TV imaging comparison of the stabilized tracking device at different time
Table 1. Time period when the absolute value of critical temperature difference of vehicle target greater than 5 K and its time proportion
View tableView in ArticleTable 1. Time period when the absolute value of critical temperature difference of vehicle target greater than 5 K and its time proportion
Time period Proportion of the time period in an entire day 8:45—15:00, 20:00—23:20 39.9%
Table 2. Time period when the absolute value of critical temperature difference of concrete fortification greater than 5 K and its time proportion
View tableView in ArticleTable 2. Time period when the absolute value of critical temperature difference of concrete fortification greater than 5 K and its time proportion
Time period Proportion of the time period in an entire day 21:40−5:30, 10:30−16:20 56.9%
Table 3. Infrared imaging effect of steel plate target at different time nodes
View tableView in ArticleTable 3. Infrared imaging effect of steel plate target at different time nodes
No. Time node Temperature/℃ Humidity Temperature difference/K Background temperature difference distribution/K Image effect 1 8:10 a.m. 12 50% 2 ≤1 Low target contrast 2 10:40 a.m. 15 36% 0 ≥10 Target invisible 3 14:30 p.m. 19 18% −11 ≥15 Low signal to noise ratio and high background interference
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Lei WANG, Chao XU, Hui WU. Research on temperature difference character between visible light and infrared target and background[J]. Infrared and Laser Engineering, 2024, 53(9): 20240071
Paper Information
Received: Feb. 29, 2024
Accepted: --
Published Online: Oct. 22, 2024
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