公开(公告)号：US20210125348A1

公开(公告)日：2021-04-29

申请号：US17077323

申请日：2020-10-22

Applicant: US Gov't as represented by Secretary of Air Force

Inventor： Santasri Bose-Pillai ,  Jack McRae ,  Christopher Rice ,  Steven Fiorino

IPC: G06T7/246 ,  H04N7/18 ,  G01W1/00

Abstract: A system and method provide improved remote turbulence measurement. The system includes an image capturing device that captures frames of images of a target. A controller of the system tracks motion of one or more features of the images between frames using a pattern recognition algorithm. The controller computes subpixel motion based on results of the pattern recognition algorithm and computes differential motion or tilts between pairs of features. The controller computes differential tilt variances from every set of frames. The controller computes theoretical weighting functions for differential tilt variances. The controller determines weights to linearly combine weighting functions such that the combined weighting function closely resembles a desired weighting function that corresponds to the turbulence parameter of interest. The controller linearly combines the differential tilt variances using the determined weights to obtain the turbulence parameter of interest.