Turbulence strength estimation from an arbitrary set of atmospherically degraded images |
| |
Authors: | Zamek Steve Yitzhaky Yitzhak |
| |
Affiliation: | Department of Electro-Optics Engineering, Ben Gurion University, Beer Sheva, Israel. |
| |
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 C(2)(n) (which characterizes the turbulence strength) with conventional equipment. We propose a method for estimating C(2)(n) from the available atmospherically degraded video sequence by calculating temporal intensity fluctuations in spatially high variance areas. Experimental comparison with C(2)(n) measurements using a scintillometer shows reliable estimation results. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|