Infrared and Laser Engineering, Volume. 32, Issue 6, 610(2003)
Statistical analysis for infrared image of the sky near the ground
The infrared image of the sky near the ground is analyzed statistically.The mean of gray level, variance, horizontal and vertical scanning line, histogram of long-wave(8～12 μm)infrared images of the sky near the ground are analyzed. The images consist of 100% sunny, 100% cloudy, cloudy and night. Result about the analysis is also given. The relation between gray level mean and atmospheric temperature is linear. The variance of 100% cloudy sky image is small. Gray level linearly changes in vertical scanning line and keeps stable in horizontal scanning line. The histogram of image depends on the weather and time.
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[in Chinese], [in Chinese], [in Chinese]. Statistical analysis for infrared image of the sky near the ground[J]. Infrared and Laser Engineering, 2003, 32(6): 610
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