Adaptive bundle adjustment method for three-line array image exterior orientation element smoothing equations

The invention discloses an adaptive bundle adjustment method for three-line array image exterior orientation element smoothing equations and belongs to the technical field of photogrammetry and remotesensing. The method disclosed by the invention comprises the following steps: according to the in-orbit operation characteristic of a transmission type three-line array satellite, taking a photographic base 1/n size as a spacing, determining an EFP (Equivalent Frame Photo) moment, selecting an orientation point and a connecting point on a scanning line at the EFP moment on a front view image, andacquiring corresponding image point coordinates on front view and back view images by utilizing means of stereoscopic observation or image matching; during adjustment, automatically segmenting stereoscopic images according to vertical parallax differential data of the stereoscopic images; on the basis, assigning different weights with different segments of exterior orientation element smoothing equations, and participatin