Kai Ye, Ling Yang, Xiaoqiong Zhen, Qinzheng Hao. Design and Implementation of Visibility Measurement System Based on Integrating Sphere Light Source[J]. Laser & Optoelectronics Progress, 2019, 56(24): 240104
- Laser & Optoelectronics Progress
- Vol. 56, Issue 24, 240104 (2019)
Fig. 1. Integral sphere light source design
Fig. 2. Light source and light path design
Fig. 3. Top view of light source and light path
Fig. 4. Schematic of the system
Fig. 5. Data processing flow chart
Fig. 6. Light spots. (a) Light spot taken from the integrating sphere light source; (b) light spot taken from the LED light source
Fig. 7. Light spot segmentation
Fig. 8. Light spot boundary points
Fig. 9. Relationship between grid length and uniformity error
Fig. 10. Comparison of different visibility distances. (a) Low visibility; (b) medium visibility; (c) high visibility
Fig. 11. Visibility comparison of different weather phenomena. (a) Rain; (b) fog
Fig. 12. Visibility comparison of different light sources. (a) LED; (b) integrating sphere
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Table 1. Comparison of different visibility distances
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Table 2. Visibility comparison of different weather phenomena
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