Trimetrogon
Trimetrogon is an aerial photographic survey method that involves the use of three cameras in a single assembly. One of the cameras is pointed directly downwards, and the other two are pointed to either side of the flight path at a depression angle from the horizontal of 30 degrees. The images overlap allowing the use of stereographic interpretation of topography.[1][2]
The name comes from the Metrogon cameras used in the original montages.[3]
References
- ^ "Antarctic Air Photography". Polar Geospatial Center. University of Minnesota. Retrieved 13 August 2015.
- ^ "Trimetrogon Photography". CEARS- Historic Aerial Photo Blog. Wordpress.com. 21 May 2014. Retrieved 13 August 2015.
- ^ "trimetrogon". American Heritage Dictionary of the English Language. Houghton Mifflin Harcourt. 2015. Retrieved 13 August 2015.
Further reading
- Imhof, R.K.; Doolittle, R.C. (1966). Thompson, M.M. (ed.). Mapping from oblique photographs (3rd ed.). Falls Church, Virginia: American Society of Photogrammetry. pp. 875–917.
 | This article about aircraft components is a stub. You can help Wikipedia by expanding it. |