Executing block triangulation
The data exported from I-CONIC Studio are only approximate. They have been generated from pairwise matching only. In order to improve accuracy, you can perform a block triangulation
(aka bundle adjustment). Optionally, this also includes self calibration, which determines the interior orientation assuming that one and the same cameras has been used without zooming
during acquisition of the images. To estimate improved parameters through block triangulation, you select "Block triangulation->Estimate". The estimation can be undone to restore the
original state using "Block triangulation->Undo".