trimetrogon


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tri·met·ro·gon

 (trī-mĕt′rə-gŏn′)
n.
A system of aerial photography in which one vertical and two oblique photographs are simultaneously taken for use in topographic mapping.

[tri- + Metrogon, trademark for a kind of camera lens.]

trimetrogon

(traɪˈmɛtrəˌɡɒn)
n
(Photography)
a. a method of aerial photography for rapid topographic mapping, in which one vertical and two oblique photographs are taken simultaneously
b. (as modifier): trimetrogon photography.
[from tri- + metro-, from Greek metron measure + -gon]
References in periodicals archive ?
In the 1946-47 southern summer, Martin Mariner seaplanes and other aircraft operating from aircraft carriers, took some 65,000 aerial photographs with trimetrogon cameras, covering nearly half of the Antarctic coastline (Rose & Conger 1980, 249-250).
A pesquisa, segundo Valverde, tem como objetivos caracterizar e representar cartograficamente os sistemas de utilizacao da terra e os regimes de propriedade em vigor no leste da Paraiba, apresentar sugestoes para um planejamento rural na regiao estudada, alem de realizar uma experimentacao de metodo, qual seja o da interpretacao de fotografias aereas no sistema trimetrogon, para cartografar a utilizacao da terra.
Photogrammetric rectification of oblique Trimetrogon imagery.
Tabla 1 Datos de las fotografias aereas utilizadas Distancia Escala Focal Format Vuelo Nominal (mm) o Trimetrogon 1:40,000 N/D ** Digital Argentina 1:40,000 N/D ** Digital OEA 1:50,000 N/D ** Papel Argentina * 1:50,000 N/D ** Digital Me Hurd 1:50,000 N/D ** Papel SAF *** CH6 1:60,000 153.