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1. (WO2018038768) VIDEO GEOLOCATION

Pub. No.:    WO/2018/038768    International Application No.:    PCT/US2017/022136
Publication Date: Fri Mar 02 00:59:59 CET 2018 International Filing Date: Tue Mar 14 00:59:59 CET 2017
IPC: G06T 7/246
G06T 5/50
G06T 5/00
G06T 3/40
Applicants: RAYTHEON COMPANY
Inventors: ROBINSON, Ian S.
BLOOMER, John D.
BUSCH, Mark T.
Title: VIDEO GEOLOCATION
Abstract:
Systems and methods for identifying root causes for and/or correcting pointing error in moving platform imaging. Scene frames captured by a sensor (e.g., a focal plane array, etc.) are digitally transformed to compensate for relative motion between the scene and platform, then motion residuals are computed based on inter-frame scene gradients, and image eigenfunctions are fit to the motion residuals to compute coefficients that may be used to efficiently correct future image acquisition, determine root cause(s) of pointing (e.g., sensor pointing error, scene mean altitude, platform altitude, etc.) errors, and further digitally correct the captured images. Comparisons may be made to a database of residual transformation coefficients based on known or expected relative motion of the platform to the scene and a known or expected pointing angle. Truly moving targets may be identified, removed and re-added after image digital transformation processing.