Airborne GPS and Softcopy in Highway Mapping: A Performance Study

Harnek S. Bains

Abstract:	In TxDOT the conventional Aerial Triangulation process is based on panelled targets at short distances, arranged in bands that are surveyed on ground. The aircraft flies over the targets and photography is completed. Aerial film is developed, contact prints are made, and image coordinates are observed on Analytical plotters. Then data processing is done and control densification is completed for subsequent Digital Terrain Modeling and mapping. This procedure involves too much field work, which is slow, costly, and hazardous. There is a need to minimize the field visits, and automate the control process. To automate the procedures digital workstation like Softcopy is required. This paper analysis the 3-D accuracy achieved from the Airborne GPS and the digital Softcopy Photogrammetry using a high quality ground truth.
Published in:	Proceedings of the 50th Annual Meeting of The Institute of Navigation (1994) June 6 - 8, 1994 Antlers Doubletree Hotel Colorado Springs, CO
Pages:	207 - 210
Cite this article:	Bains, Harnek S., "Airborne GPS and Softcopy in Highway Mapping: A Performance Study," Proceedings of the 50th Annual Meeting of The Institute of Navigation (1994), Colorado Springs, CO, June 1994, pp. 207-210.
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