Wen-yue GUO, An-zhu YU, Hai-yan LIU, et al. Regularized total least squares used in remote sensing image positioning of optical line array[J]. Optics and precision engineering, 2017, 25(1): 236-244.
DOI:
Wen-yue GUO, An-zhu YU, Hai-yan LIU, et al. Regularized total least squares used in remote sensing image positioning of optical line array[J]. Optics and precision engineering, 2017, 25(1): 236-244. DOI: 10.3788/OPE.20172501.0236.
Regularized total least squares used in remote sensing image positioning of optical line array
In geometric positioning of optical line array remote sensing image
as it exists error on system error correction parameters corresponding coefficient matrix
a geo-positioning method of remote sensing image of optical line array based on regularized total least squares was proposed in this paper. Firstly
the collinear equation was constructed based on the definition of rational function model
Secondly
the geo-positioning and systematic error correction methods were derived by linearization. Then
the corresponding optimal objective function was constructed based on the definition of the EIV model with a regularization term introduced. The iterative solution method of system error parameters based on regularized total least squares solver was deduced by the Lagrange conditional extremum. Experiment results indicate that
the geo-positioning accuracy of this method is increased by 11.61% compared with the classical least squares adjustment algorithm
and it is increased by 6.06% in contrast to Tikhonov regularization geo-positioning accuracy. The proposed method in this paper can increase the geo-positioning accuracy of linear array CCD images effectively without any extra information.
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