Monitoring by Aerial and Terrestrial Photogrammetry

A photogrammetric monitoring method of structural deformation has been developed during the course of this project.

The method is based on a combination of aerial and terrestrial photographs. The theoretical experimentation for formulation of computer programs has been done on mathematical models. The combination of aerial and terrestrial photographs provides a 30% increased accuracy if compared to terrestrial photographs only. Practical experimentation was done on the existing Gabion Wall and it was indicated that the achievable accuracy is 1/120,000 of the photographic distance. The method is flexible if it can be used for monitoring of any type of structure as well as for aerial triangulation.

Publication Date: 
Friday, November 30, 1979
Publication Number: 
WA-RD 38.1
Last modified: 
09/28/2016 - 14:49
Authors: 
S.A. Veress, J.N. Hatzopoulos, Riad Munjy.
Originator: 
University of Washington. Dept. of Civil Engineering.
Number of Pages: 
115
Subject: 
Accuracy, Aerial photography, Computer programs, Deformation, Mathematical models, Monitoring, Photogrammetry, Statistical analysis, Structural analysis, Surveying.