Publications / 2017 Proceedings of the 34rd ISARC, Taipei, Taiwan

Photogrammetric Models Using Oblique Aerial Imagery for Construction Site Surveying

Anoop Sattineni and James Hindman
Pages 712-719 (2017 Proceedings of the 34rd ISARC, Taipei, Taiwan, ISBN 978-80-263-1371-7, ISSN 2413-5844)

Photogrammetry is being used in several industries for creating digital 3-dimensional models of objects. Oblique aerial images are taken from an airplane or spacecraft. The technique involves taking multiple pictures of the same site from several angles, thus allowing interpretations to be made regarding surface elevations. The resulting images can be stitched together to form a topographical map using photogrammetric software. An experiment was conducted in this study to examine the variance between topographic maps created from oblique aerial imagery and traditional land survey methods. In this research, 165 high-resolution oblique aerial images were used to create a topographical surface map for a potential construction site. A land survey using traditional methods was conducted to produce a topographical map of the same area. Comparisons were made between the two topographical surfaces. Results from the experiment showed significant variance between the two topographical surface leading to the conclusion that oblique aerial images cannot be used to replace traditional land surveys to create topographical maps for construction purposes.

Keywords: Photogrammetry, Oblique Aerial Imagery, Topographical Surface, Site Survey