HIGH-RESOLUTION SATELLITE IMAGE TRIFOCAL TENSOR SOLUTION

Abstract. This study presents an efficient algorithm for solving the affine trifocal tensor problem in  high-resolution satellite imagery. Because the imaging mode of high-resolution satellites is usually a line-center projection and the field of view is small, it can be approximated as an affine camera for orientation. However, the nature of high-resolution satellite trifocal tensors has not been effectively studied or discussed. To address the shortcomings of the current trifocal tensor direct linear algorithm, this study proposes a minimally parameterized trifocal calculation method that can stably calculate the affine trifocal tensors of high-resolution satellites. Efficacy was demonstrated using ZY3-02 and Pleiades-Neo data.