The Use of Digital Stereo Photogrammetric Methods in Historical Photo Analysis
Abstract:
A historical, temporal photo interpretation method is presented for combining the use of a current digital stereo photogrammetric system with manual photo interpretation techniques. The U.S. Army Topographic Engineering Center was tasked to provide products showing the current three-dimensional position of certain features present on a 1918 photo mosaic. This mosaic is over a former chemical munitions test area in Washington, D.C.. In order to provide this data, aerial photography from 1918, 1927, 1991 and 1993 was used in the process. This paper will discuss the front end research and collection of textual and photographic data, the manual photo interpretation process, the photogrammetric process and its accuracies, the problems encountered, the digital mapping process and the final products. Digital stereo photogrammetric system, Photogrammetric process, Digital mapping.