Angular adjustment of surveyed building polygon using robust M-estimation methods

Positions of polygon points determining a geometric shape of a building object are affected by random measurement errors of the object’s angles. Polygon angles are thus not equal when comparing actual and design corners of a building object. However it is possible to make an attempt to correct polygon angles within the standard deviation of the position of polygon points and lead to their congruency with the known design angles of the field object. In this paper, we propose the least squares method for