10-Photogrammetry

10-Photogrammetry - 5/07/2008 Typically an application for...

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5/07/2008 ESM 266: Photogrammetry 1 ESM 266: ESM 266: Photogrammetry Photogrammetry 1 Jeff Dozier Typically an application for aerial photography Exposure station #1 #2 #3 Direction of Flight lens altitude b Flightline of Aerial Photography stereoscopic model terrain recorded on three successive photographs above ground level, H 60% overlap Coverage of photograph Aerial photography block oblique photography may be acquired at the end of a flightline as the aircraft banks to turn Block of Aerial Photography Flightline #1 20 – 30% sidelap Flightline #3 Flightline #2 Example from textbook • Jensen: photos of Columbia SC 3-6 3-5 3-4 4-4 4-5 4-6 Block of Aerial Photography Compiled into an Uncontrol ed Photomosaic a. b. Photo 4 5 from previous slide Geometry of an image over flat terrain
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5/07/2008 ESM 266: Photogrammetry 2 Detailed geometry over flat terrain Camera lens Focal length, f ab o Positive print Image space Altitude above Exposure Station, L f Principal Point Optical axis AB P Real-world object space above
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10-Photogrammetry - 5/07/2008 Typically an application for...

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