Patent Document ID: 9709395
Application ID: 13866203
Patent Status: 1

Claim One:
1. A method for analyzing and correcting images generated from at least one imaging system on at least one satellite, the method comprising the steps of: providing at least three images of an area of interest from the at least one imaging system, the at least three provided images being provided from at least three different angles and each of the images covering at least an entirety of the area of interest; establishing point correspondence between corresponding points in each of the at least three provided images, wherein the points for which point correspondence is established are present in each of the at least three provided images; generating at least two sets of three-dimensional information based on the at least three provided images, wherein the at least two sets of three-dimensional information are generated based on at least two different combinations of at least two of the at least three provided images of the area of interest, and wherein each of the at least two sets of three-dimensional information comprise three-dimensional coordinates for the points for which point correspondence has been established; comparing the at least two sets of three-dimensional information so as to determine discrepancies and provide information related to at least one of the imaging system or errors in the images based on the determined discrepancies, wherein comparing the at least two sets of three-dimensional information comprises comparing the three-dimensional coordinates in each of the at least two sets of three-dimensional information for at least one of the points for which point correspondence has been established; building a model with at least one of internal or external parameters of said at least one imaging system, said model identifying how these parameters affect images provided by said at least one imaging system; changing parameters corresponding to said at least one imaging system within the model based on the result of the analysis of possible differences between the at least two sets of three-dimensional information; correcting at least one of the at least three provided images of the area of interest taken from said at least one imaging system according to the built model and the changed parameters, wherein correcting the at least one of the at least three provided images comprises correcting at least one of (a) raw data of the image, (b) at least one pixel of the image, or (c) both the raw data and the at least one pixel; and regenerating the at least two sets of three-dimensional information from the corrected at least three images, wherein the correction is performed so as to minimize any errors in the point correspondence between the at least three images and/or as to minimize the differences in the at least two generated sets of three-dimensional information.