Patent Document ID: 9794483
Application ID: 15243216
Patent Status: 1

Claim One:
1. A system for pointing error corrected imaging by a movable imaging platform including an imaging sensor, comprising: one or more processors configured to: receive frames of a scene captured by the imaging sensor, each frame comprising a plurality of pixels; digitally transform the captured frames with respect to a common field of view (FOV), the one or more transformations compensating for the apparent motion in the scene induced by relative motion between the scene and the movable imaging platform, such that the pixel size and orientation of pixels of the digitally transformed frames are the same; calculate any motion residuals, comprising any apparent motion, remaining in the digitally transformed frames based on inter-frame scene gradients between the digitally transformed frames; if any motion residuals remain in the digitally transformed frames, fit a set of image eigenfunctions to the calculated motion residuals to compute residual transformation coefficients representing a pointing error of the imaging sensor, apply the set of image eigenfunctions scaled by the residual transformation coefficients to the digitally transformed frames to compensate for the pointing error, and output the compensated digitally transformed frames.