Computer Program System for Aerotriangulation

by Kam W. Wong, Assoc. Prof. of Civ. Engrg.; Univ. of Illinois, Urbana, IL,
G. Elphingstone, Cartographer, A.C.I.C.; St. Louis, MO; and Doctorate Candidate, Univ. of Illinois, Urbana, IL,

Serial Information: Journal of the Surveying and Mapping Division, 1972, Vol. 98, Issue 2, Pg. 219-231

Document Type: Journal Paper


A system of FORTRAN programs has been developed to meet the varied needs of analytical aerotriangulation. The basic solution is based on a simultaneous adjustment of all photogrammetric and geodetic observations. Flexibility, simplicity and accuracy were stressed in the design and development of these programs. Separate program packages are developed for aerotriangulation of small blocks (less than 40 photos), blocks of unlimited size, and for simulation studies. Test results with fictitious data showed that the solution method had excellent accuracy and sensitivity to variations in weights.

Subject Headings: Computer software | Photogrammetry | Geodetic surveys | Sensitivity analysis

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