Method of detecting structures

Details Method of detecting structures Method of detecting structures

G - Physics

01

C

88/2

G01C 11/12 (2006.01) G01C 11/00 (2006.01) G01C 11/06 (2006.01) G03C 7/00 (2006.01) G03C 9/00 (2006.01)

Patent

CA 1294468

ABSTRACT A method of obtaining a stereoscopic view from two satellite or two aerial photographs of the same or overlapping area is provided. The method involves aligning the photographs in a stereoscope with the horizontal axis of the stereoscope alinged parallel to the flight path taken to produce the photographs or parallel to the scan direction employed by the satellite. The photographs being produced on infra red film in the case of serial photography or enhanced to accentuate red and infra red in the case of satellite photography. A series of photographs are produced each with a desired colour balance. The photographs are cross compared in the stereoscope to produce an enhanced stereoscopic effect to enable detection and/or measurement of structures or effects.

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