Abstract
In remote sensing, atmospheric turbulence and aerosols usually limit the image quality. For many practical cases, turbulence is shown to be dominant, especially for horizontal close-to-earth imaging in hot environments. In a horizontal long-range imaging, it is usually impractical to calculate path-averaged refractive index structure constant (which characterizes the turbulence strength) with conventional equipment. We propose a method for estimating from the available atmospherically degraded video sequence by calculating temporal intensity fluctuations in spatially high variance areas. Experimental comparison with measurements using a scintillometer shows reliable estimation results.
© 2006 Optical Society of America
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