Measurement of geometric distortion in a turbulent atmosphere.
A technique for determining the vector displacement that maximizes the spatially local cross-correlation between an image and a reference image as a continuous function of the image space is presented. This is applied to solar observations of granulation made during a condition of rapidly changing atmospheric distortion, a particular turbulence condition wherein features are remapped without loss of spatial resolution.
November
L J
LJ
U.S. Air Force Geophysics Laboratory, National Solar Observatory, Sunspot, New Mexico 88349, USA.